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  1. eHow
  2. Computer Software
  3. Computer Programming
  4. Arrays

Arrays

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  • How to Show the Value of NID Within a Node Array in Drupal

    Drupal nodes are assigned an internal node ID. The node ID is also known as the NID. You can display the NID on a published Drupal node by adding the proper PHP code to a specific content type using the Drupal content fields feature. The NID is also displayed in the node's URL if you are not using the custom URL alias.

  • The ColdFusion Array Is Not Clearing

    Arrays in ColdFusion, like most other programming languages, represent collections of data under a variable name. ColdFusion has special functions to remove items and determine the emptiness of an array. If removing elements from an array through manual means, the programmer may miss specific elements in the array, or may not clear the array properly. By using either the "ArrayDeleteAt" or "ArrayClear" functions followed by the "ArrayIsClear" function to check the work, a programmer should be able to ensure that an array clears all data.

  • How to Arrange an Array From Negative to Positive Integers

    Arranging an array from negative to positive integers requires you to follow a few basic, easy to manage steps. Arrange an array from negative to positive integers with help from an experienced math tutor in this free video clip.

  • What Is an Annular Array Transducer?

    A transducer is a device that converts a signal in one form of energy to a signal in another form of energy. An annular array transducer is a transducer consisting of several circular elements, arranged concentrically, and is typically used to convert electrical pulses into ultrasound pulses for medical applications.

  • How Can We Dynamically Allocate Array Size?

    Arrays in computer programming are collections or sequences of values contained in a single variable name. These data structures allow programmers to represent data series or data lists for a variety of purposes, such as sorting or iteration. However, in many programming languages, such as C/C++, arrays programmers must declare static, unchanging array sizes. By using memory allocation techniques in a language such as C++, the programmer can dynamically create arrays or even resize those arrays during program execution.

  • Static Arrays in Functions in VBA

    An array is a data construct that holds multiple pieces of data. It is useful for storing and manipulating related data as a unit rather than having to refer to each individual piece of information. An example would be an array called Calendar that holds the names of the months. This would be an example of a static, one-dimensional array with twelve elements. Arrays can be multidimensional as well.

  • Maximum Array Size in MATLAB

    MATLAB is mathematical software for figure plotting, addition, calculus and everything in between. MathWorks, its creator, designed MATLAB as an especially useful program for linear algebra, a field of math that deals with matrices: rows and columns of numbers. An array is a special type of matrix with just a single row or column. MATLAB's allotted storage space on your computer isn't unlimited though, which is why there are limits on the maximum array size.

  • The Size of an Array in MATLAB

    Arrays are an important part of MATLAB. They hold sets of data that are related to each other. Each array can consist of multiple dimensions of data. For example, a simple one-dimensional array is just a list of numbers. A two-dimensional array is a table with rows and columns, where each row is a one-dimensional array. A three-dimensional array is a set of two-dimensional arrays stacked on top of each other.

  • How to Allocate a 5D Array

    Each time you create an array in the Microsoft languages, you must allocate the array and define the number of elements each dimension contains. The allocation sets aside memory on the server or desktop computer, so as you add values to the array, the values are stored in the allocated memory space. To allocate a five-dimensional array, you must set up five dimensions with the variable name.

  • What Is a Sparse Array in MATLAB?

    MATLAB is a programming environment with an interpreted language that is distinct in computer science for treating all data types as a matrix. MATLAB matrices are also called arrays, and can be thought of as tabular arrays that contain a number -- including information to the right of a decimal point, such as treating the value of pi as 3.1415 – of a given number of rows and columns.

  • Pascal Array Pointers

    Before Java, the primary programming language taught in college computer science courses was Pascal. This "teaching" language soon evolved into a professional tool used to produce utilities and applications for Apple's early Macintosh computers, Microsoft DOS and Windows operating systems. Modern Pascal compilers are general-purpose languages that support basic data types like arrays and pointers as well as data-type extension through classes.

  • VBA Size Limit for Arrays

    Visual Basic for Applications supports arrays to simplify your data processing. Arrays contain multiple variables and have size limits based on data type, memory available and defined number of elements. The number of elements is defined during the array creation process if you create a general or multidimensional array. Open the VBA window within your application to access the array properties.

  • How to Pass an Array From Ajax

    The Ajax language lets you pass and receive array variables throughout your Web project. Arrays are handy structures that let you pass dozens and even hundreds of values within only one variable. The benefit is that you do not need to create a variable for every value, and you can create cleaner, more efficient code, which leads to fewer mistakes during the coding process.

  • How to Mix Arrays in MATLAB

    MATLAB, a computer programming language designed specifically for mathematical computations, deals heavily with arrays and matrices. An array in MATLAB is a set of numbers contained within brackets, such as "[ 1, 2, 3 ]." A matrix is an array of arrays, with a semicolon separating arrays. When printed, each array in the matrix appears on its own line, or row. If you have multiple arrays that you want to combine so you can access all the combined values in one place, you can mix the arrays into a matrix.

  • How to Populate an Array in MATLAB

    You can create an array using MATLAB, a computer programming language and interface for performing mathematical tasks, with a single command. The advantage of an array is that you can call out specific items from within the items in the array or manipulate the array, such as removing duplicates from a list.

  • How to Remove NaNs & INF From an Array in MATLAB

    Unlike other programming languages that tend to deal with numbers and other types of input, such as words and paragraphs, MATLAB, a computer programming language created specifically for handling complex mathematical tasks., only works with numbers. If you have a non-number in an array -- a set of multiple values enclosed in brackets -- MATLAB prints it as "NaN" which is short for "Not a Number." MATLAB prints "infinity" as "INF." You can remove NaN and INF entries from an array with a simple command.

  • How to Use MemoryStream on a Bitmap Byte Array

    The .Net framework provides you with many tools that simplify certain aspects of programming. For example, use the MemoryStream class to create streams of data that buffer data. You may need to buffer data when you are unsure how much data needs to be read, or how fast the data is sent. The buffer stores the data in a temporary storage, which is readable when needed. Create many types of MemoryStreams, including one that uses a bitmap byte array.

  • How to Check Whether an Array Has Value or Not in C++

    C++ is a programming language for writing computer programs. C++ supports several types of variables and data structures including arrays. An array is a type of data storage used by all programming languages. In C++, the array is defined with square brackets and contains variables in a certain order. For instance, the array [2, 47, 20] contains three integer numbers, 2, 47 and 20. To find out if an array has a certain value, you need to loop through each array element.

  • How to Apply an Array in BorderLayout

    When you're programming a Java application and you need to divide up some of the elements in the application's user interface, you can use the BorderLayout function to create a dividing container. An array can also be applied to a BorderLayout container. For example, you've created an application that outputs a set of data, which in turn can be clicked on or interacted with in some way. To make the interface more elegant, you can use BorderLayout to give each value of data in the array its own container.

  • How to Make Arrays in PCSpim

    The SPIM assembly language allows you to create arrays of data inside your application. An array is a group of different components that can be addressed using a single variable and an index. Think of an array as a filing cabinet, with each drawer containing a new item and a label. PCSpim allows you to create a new array easily from the program's document.

  • How to Alphabetize an Array in C++

    The C++ Standard Template Library is full of useful functions for dealing with data, including the sort algorithm. Unfortunately, if you use the sort algorithm on an array of strings, they won't come out in alphabetical order. Instead, it defaults to sorting them in something known as ASCIIbetical order -- a sorting based on the internal encoding of the individual letters. In order to sort alphabetically, you must provide a function that tells the sort algorithm exactly how to compare two strings in the way you want.

  • How to Activate the T3 Array

    The Sun StorEdge T3 is a server array developed by Sun (now owned by Oracle). It connects to your large-scale network hub, providing additional server space throughout. The Sun StorEdge T3 array is connected to your hub via Ethernet. As long as it is powered, it is always active. You might not notice its activation, however, until you open the SUn StorEdge Management Console. This is opened from your Unix or Linux shell.

  • How to Remove the Repeated Elements in an Array

    A Microsoft .NET array can contain several values, but when you do not want to display duplicates, you must go through each array value and remove them. .NET has an "Except" function for arrays that lets you remove duplicates. You must create a second array variable to contain the edited primary array, and then all duplicates are removed but not the original value.

  • How to Check if Two Arrays Have the Same Elements in C++

    Comparing the individual elements of two arrays may seem like a daunting task at first glance. This issue, as with most programming problems, has almost as many solutions as the number of coders dealing with it. Good coding practice encourages the simplest approach to both increase the efficiency of the complied code and simplify future code maintenance. One simple approach is to directly compare the contents of both arrays in a single “while” loop.

  • Explanation of the Use of an Array

    Computer programs often use arrays to manage data items. The data for an application can include text, numbers and many other types of information, including what you see as a user of the application as well as items involved in the application logic. Arrays store sequences of data values in linear arrangements. Many programming languages provide access to array structures, including both Web and desktop platforms.

  • How to Implement Priority Queue Class Using Array

    A queue stores data in sequence and contains two functions: push and pop. Push places an item at the end of the queue; pop removes the item at the front and returns it. A priority queue behaves similarly, with one difference: push adds items to the queue in a certain order. Arrays are not ideal for a priority queue; they lack flexibility, making it difficult to sort the queue. However, they are useful for learning the concept.

  • What Is an Array of Integers?

    Programming platforms take different approaches to modeling and storing data, but most common languages use variables and arrays. A variable is a single item of data and an array is a series of items stored within a linear data structure. Arrays of integers are common in many applications, including desktop and Web programs. Understanding and using an array of integers is something even beginners can achieve.

  • How to Add an Array to ViewState

    ViewState is the method by which ASP.NET programs save data locally while the program is in use. This stores user values as arrays, which can be called back when needed. Adding an array to your ASP.NET program is not difficult. You just need to decide how many values your array will hold. The more values, the more data will be stored. This speeds up the program but takes up more hard drive space.

  • Define a Multi-Dimensional Array in C++

    When defining how a range of data is stored in your code, a single dimensional array isn't always adequate. Multi-dimensional arrays are a way to represent how a range of data is structured by using multiple indices to access a value.

  • How to Iterate on a JSON Array

    JSON, short for JavaScript Object Notation, makes the Web a more productive place by enabling computers to exchange data efficiently. Simply create a JSON array consisting of keys and values, and send it to another computer -- that computer's software can extract the data and use it in a variety of ways. If you receive a JSON array or create one of your own, you have the option to iterate through its data. As you do, you can display the array's values on-screen or store them in a database for later use.

  • How to Make Parallel Arrays of Data in C++

    Using parallel arrays in C++ lets you store multiple fields of data for several items at a time. Each of the arrays stores a series of data values, which are accessed by their index. For example, you can declare three parallel arrays to store the names, ages and salaries of your employees. To make parallel arrays, first declare the arrays, being careful to give them all the same size, and then initialize the arrays with values.

  • Character Array vs. String

    In a programming language, a character data type is a single character. Some languages allow you to build an array of characters to simulate words or sentences. Alternatively, you can create string types, which hold the same information, but provide different functions and methods. Character arrays are beneficial if, for example, you write a word search or crossword program. However, strings have more uses and are implemented in more programming languages than character arrays.

  • How to Initialize an Array in VBA

    Visual Basic for Applications (VBA) is a version of Microsoft' Visual Basic programming language used within applications, primarily members of the Microsoft Office suite of programs. Arrays are one of the most fundamental and useful data structures. An array may be thought of as a book. Each page in the book can contain data independent of the other pages. Any page may be changed or overwritten without affecting the other pages.

  • How to Remove All Undefined Values From an Array in ColdFusion

    Adobe ColdFusion is a rich web application development platform designed for the simple integration of HTML web pages with ODBC data sources. The platform works with dynamic components of all data types, including arrays. A ColdFusion array is a tabular structure used to temporarily hold data, such as the contents of an online shopping cart, so that you make changes to it without committing the information to a database. If you need to empty the undefined values from an array, you will need to create a custom ColdFusion function to do so.

  • How to Merge an Array Using QBasic

    QBasic arrays allow you to arrange and store information with the same data type together in a common slot of memory. You create an array using the "Dim" command with a unique array name, the number of items in the array and the data type of the items. It is possible to merge the contents of two different arrays, if you create a third array the combined size of the other arrays, then insert the contents of each of the first two arrays into the new, larger array.

  • How to Reverse an Array in C++

    The C++ programming code base has a variety of built-in functions that programmers use when creating software. One of these functions reverses the elements that are in an array. This is useful when you need to retrieve elements from the array in the opposite order that they were added, or you want to perform operations on the array starting from its end.

  • How to Use Passcodes in a One-Dimensional Array

    You can use a passcode, or password, to protect an important program using something as simple as a C program. C programs have a data storage feature called the one-dimensional array, which is a sequence of empty cells of a fixed length. You can use these arrays to password-protect a program, so that only you can access it. This program requires minimal programming experience and should only take around an hour to complete.

  • How to Bubble Sort in "C"

    C is a programming language for writing computer programs. Sorting is a common problem in programming. For example, if the data set contains three elements: (20, 7, 66) sorting in the ascending order results in (7, 20, 66). A "bubble" sort is a simple algorithm. It involves multiple passes through the data set comparing adjustment elements, and swaps them if they are not sorted. To implement the sorting algorithm, use a C data structure called "array" that holds a set of variables in a certain order.

  • How to Avoid Instantiating Integers

    Programs can require an enormous amount of computer memory in order to properly run. Programmers need to know how to avoid wasting memory so that their programs can run at their best. One way of avoiding memory wastage is not instantiating integers unless you absolutely need to. Each integer requires anywhere from 32 bits to 64 bits on common systems. By reusing integers that are already instantiated, you can conserve memory and keep your program optimized.

  • How to Reverse Elements of an Array in C

    C is a programming language for writing computer programs of any level of complexity. An array is the data structure denoted in C with square brackets which holds a set of variables in a certain order. For example, [5, 8, 12] is a C array that consists of three elements. The reversed array comprises the same elements, but in the backward order such as [12, 8, 5]. Array reversing is frequently required in C programs.

  • How to Write a Function That Accepts as Input an Array of Integers in C#

    Knowing how to declare arrays and pass them as a parameter to other functions is essential when coding in C#. An array of integers stores a list of numbers such as 2, 1, 60, 11, 0. Passing an array to a function is a simple matter of knowing the correct syntax for sending the array and for the function to receive it as input.

  • How to Replace the Elements in an Array in C

    In C programming, values are often stored in an array, which is a collection of data where each piece is stored at a specific index and can be accessed by specifying the index and the array in which it resides. There are multiple reasons why a programmer would want to replace the elements in an array, but the underlying reason is that the data in the original array is no longer needed and must be replaced with new data.

  • How to Read a Pipe Separated Line Into a Bash Array

    Using Bash scripting, you can automate many tasks that involve working with files, programs and data interchange without resorting to a complete programming language. One of its features is the array, used for manipulating sets of data. You can use the Input Field Separator variable to read a pipe separated line into a Bash array.

  • How to Declare a String Array

    Declaring a string array is useful for a number of different programming applications. An array of strings can be used to store many things, such as important textual information. The syntax to declare a string array is quite straightforward, and can be demonstrated quite well in the Java programming language. Once you have declared a string array, you can interact with this object in a number of different ways.

  • How to Display a Character as an Integer in Java

    When working with characters in Java it may be helpful to display the integer value of the character on the screen. A character such as '11' is stored internally as an integer in Java. However, unicode contains many characters such as roman numerals that don't translate directly to their integer values. You can use the "Character.getNumericValue" to retrieve and display the integer value of any valid character.

  • How to Remove Null Records From an Array in Java

    In the Java programming language, arrays can contain primitive types and instances of any Java class. When the array contains elements of a reference type, the contents of some array entries may be null. You can compact a Java array so that it only contains non-null records. This can result in faster searches, as the code can concentrate on the part of the array that contains real information.

  • How to Bind Data to a Method in WPF

    Windows Presentation Foundation allows you to create attractive and easy-to-use graphical user interfaces. You can combine WPF with the C# language to create powerful applications. For example, you can bind data to a C# method within a WPF project. This allows you to access this data in your WPF form. For instance, the data could represent a customer's name, phone number or email address. Binding data to methods is very useful in WPF.

  • How to Create a Word Array in MIPS

    The MIPS assembly language is a programming language designed to run on MIPS processors. You can perform many memory related manipulations with MIPS. For example, you can allocate a spot in memory for a bunch of word values. You can do this by creating a word array. An array is a sequence of memory cells that can each hold one type of data. Creating a word array is fairly simple in MIPS.

  • How to Remove Leading Spaces in Perl

    Leading spaces are blank characters saved in a variable or some other construct that, in most cases, serve no functional purpose. In Perl, you can remove leading spaces using the "\s" modifier, which represents all kinds of white space, including space characters, tabs, new lines and carriage returns. You can use this modifier to check an existing string for leading spaces and then remove them. This helps to ensure the integrity of your data especially when used for other purposes such as comparisons or string manipulation.

  • How to Convert a String Array to Double

    Computers store data as sequences of binary ones and zeroes. This data can then be abstracted into a specific type, like a character that represents a number or a letter. Changing between these representations is fairly easy. The tricky part is finding out if a given data set is appropriate to be changed to another. For example, when converting a string to a double, you would first have to check to see if the string contained numeric values, otherwise it would make no sense in converting it. These are the pitfalls in writing conversion applications.

  • How to Use a Variable in Perl Regular Expressions

    In Perl, a regular expression, or "regex," is a string of characters. In many cases, these characters are saved in string variables. You use Perl's operators and character classes to perform some task on a regex, such as string matching or searching for and replacing specific characters. Assign values to variables either in the code itself or prompt the user for input at run-time and then use these expressions in the character matching sequence.

  • How to Convert an Integer to Binary Array in Java

    Integer is one of the built-in classes in the Java programming language. An Integer object stores a value that can be converted to other bases such as decimal (base 10) or binary (base 2) for further processing, display or storage. You can convert a Java Integer into an array of ones and zeroes, corresponding to the binary representation of the Integer.

  • The Java Code for Counting the Number of Words in an Array

    Java applications often use arrays to store data items such as text strings. If a program is storing strings within an array, it may be helpful to calculate the total number of words contained. If each array element contains only a single word, then the number of words is simply the length of the array. However, if the array elements may contain more than one word, an algorithm will be necessary to work out the total.

  • How to Use Two-Dimensional Character Arrays in C

    Understanding how to use two-dimensional character arrays to store lists of textual data is an important skill to develop when learning how to code in C. You can use two-dimensional character arrays to store things such as a list of employee names or sentences from a book. One-dimensional character arrays have a value such as "Blue," while two-dimensional character arrays can consist of multiple strings of text at once, such as "Blue, Green, Orange." Character arrays end with a null character (\0) which differentiates them from other types of arrays.

  • How to Insert & Remove Left & Right Java Arrays

    In Java, you can hold multiple values and reference them at will in a structure called an array. These can be declared to hold integers, characters or even objects. While they do not have the robust method selection of more advanced data structures, they are still useful for simple projects and tasks within larger programs. Inserting a value into an array is as simple as referencing an index number. Also, while you cannot entirely remove a slot from an array, you can easily remove the value it holds.

  • How to Generate a Method in NetBeans

    The NetBeans Integrated Development Environment is a free code-development platform designed for the Java programming language. Java is an object-oriented language, which means it deals with the interaction between objects. An object is a computational construct possessing both a state and a behavior. A closely related concept is the class, which is analogous to a blueprint for an object. The state of an object is defined by its member data. The behavior of an object is defined by its methods. Method declaration follows a strict syntax that must be followed for your programs to work.

  • How to Put Special Characters Into a Variable in Perl

    When assigning values to variables in Perl, you use single-quotes to assign enclosed literal data or double-quotes to include data you want to interpolate, such as when you use additional variables in the string. Sometimes you may need to use special characters in the variable, such as double-quotes, but using them closes the string. To work around this, use the backslash to "escape" characters. The backslash tells the Perl program that the next character or characters have a special purpose, and that you want it to read those characters differently than the program normally does.

  • How to Read an Array in C Language

    Knowing how to access and read array values is an important skill when learning to write code in the C programing language. An array represents a series of elements of the same data type. Each element can be individually accessed using an integer index. When you want to read all the values of an array, you need to loop through the array, reading values one at a time.

  • Perl: How to Use a Variable in a Split Function

    The Perl "split" function takes a string and breaks it up into an array at points that you specify with a "delimiter," or "pattern." Often you will need to use it without knowing the string beforehand. In these cases you can get the string to split, and the delimiter, during run time, save them into variables and then use those variables in the split function. When using a string as a delimiter in the split function, you can use either one character alone, such as a comma or a whitespace, or you can use a list that contains multiple characters.

  • How to Initialize an Array in C

    Knowing how to properly initialize arrays is an important skill when learning the programming language C. An array is a data type that lets you store a collection of values, each specified by an integer index. Use arrays to store information about many objects at once, such as the names of all the employees at a business. Initialize arrays either when they are declared or later on by using assignment.

  • How to Return a String from a Class

    In programming, you can separate different parts of a program into functions or classes. These can serve a variety of functions, such as accessing a protected variable or taking data that the program passes to them and calculating the result of the process you created them to perform. These classes will use functions called methods to pass this value back to the main program by "returning" the function. Making a function or class method return a string of characters is not a difficult task.

  • How to Create a Loop to Populate Arrays in Java

    In the Java programming language, an array is a container for sequential pieces of data. Arrays must be declared as belonging to a certain type, and they can only contain data of that specified type. Arrays organize the data they contain by storing each piece in an element. Elements are accessed using an index, which is the numerical position in the array a certain piece of data resides in. Use these concepts to populate an array using a simple loop structure.

  • How to Use a Not Operator in Java

    You can use the "not equal to" (!=) operator in Java to check equality between two objects. If the objects are not equal to each other, a boolean "true" value is returned; otherwise, "false" is returned. A practical use of the "!=" operator is comparing user names on a member list to make sure that a poster logging into your system isn't on a banned-user list.

  • How to Convert a Java String to Color

    Colors have a variety of uses in Java graphical user interfaces, such as for text color, background displays and drawing objects. Users can create custom colors by entering the red, green and blue (RGB) and the hue, saturation and brightness (HSB) values or by selecting common predefined colors from the Color class. The predefined colors are black, blue, cyan, dark gray, gray, green, light gray, magenta, orange, pink, red, white and yellow. Converting a Java string to color requires a Java run-time environment, a Java development kit and a Java compiler.

  • How to Make an Array in VBS

    Use an array in programming when you need to store multiple data elements. The array is a common data structure in computer programs. Visual Basic scripting allows single or multidimensional arrays. In Visual Basic Script, you can use an array to store, retrieve and sort a set of data. You will need to use an array to store the X and Y coordinates when programming maps or graphs.

  • How to Place Integers in Ascending Order Using C++

    C++ is a programming language for writing computer programs of any level of complexity. In C++ integer numbers do not have a decimal point and are denoted with the type "int." An example of integer numbers sorted out in the ascending order is "2, 3, 5." Such sorting is often required to implement algorithms in C++. The C++ standard library (referred as "std" in the code) includes a special function that allows you to easily carry out requested sorting.

  • How to Use Java in Math Class

    The Java programming language includes an extensive set of library classes in its standard development toolkit. Programmers can build upon the library classes to develop their own applications. In particular, the Java libraries include a "Math" class for basic numerical operations. You can use the Math class in your Java programs.

  • How to Find Missing Numbers in a PHP Array

    PHP is a server-side scripting language that supports both scalar and compound data types, such as arrays. PHP arrays are actually ordered maps that associate keys with values, where each key identifies the value. Arrays allow data-group storage in a single variable, so the data values can be manipulated as a single structure. PHP also offers a variety of functions for changing, deleting, printing and comparing the values stored in arrays, a feature that is useful when organizing data or when identifying missing values in arrays.

  • How to Remove an Index in a Dynamic Array of Integers Using C++

    Dynamically allocated arrays are a space-efficient means of storing variable amounts of data in C++. They are efficiently organized and offer benefits in both speed and overall memory footprint consumed by the data structure. The process of deleting an index from a dynamic array is quite straightforward, but one of the downfalls of dynamic arrays is that the speed of the algorithms used to add or remove elements from the array is slow compared to other data-storage methods (such as linked lists, in which adding and deleting from the array can be done in constant time). The most basic algorithm…

  • How to RAID an SSD

    Building a RAID array is a way of extending the usefulness of multiple hard drives within a single PC to provide increased access speeds, stability or security from drive failure. Creating a RAID array from multiple SSD drives does this and more. The non-mechanical nature of the solid state drives provides even more security as you remove mechanical-related failures from the drives in the array. Add-in the speed boost from the drives as well, and you have RAIDS that are even faster, cutting save and load times for your system for noticeable speed improvements across the board. In addition building…

  • How to Compare Integers in Java

    In Java, integer values can be stored and represented in two ways. You can store integers as primitive type "ints" in which Java only stores the numerical value. Alternatively, you can use "Integer" objects, which store the numerical value using a Java object reference. Whichever type of integer your program uses, you can compare integer values easily using a few lines of code. A conditional test is the most common way to compare integers in Java, allowing you to tailor your program's performance to the results of such comparisons.

  • How to Unset an Element of an Array

    Arrays provide a way to store and retrieve data. In PHP, arrays store data by associating values to keys. A key must be either an integer or a string, but values can be integers, strings, another array, and Objects. You can edit elements in an array by referencing its key, then assign it a value. Add elements by adding a key that has not been used in the array and then assigning it a value. In order to remove a key or value pair from an array, use the unset() function.

  • How to List All Server Variables in .aspx

    Listing the contents of the ServerVariables property in ASP.NET can be a valuable troubleshooting tool while debugging ASP.NET applications. The ServerVariables property returns a collection of name/value pairs you can iterate through to output the values to a web page using Response.Write method calls.

  • How to See All Elements of a Two Dimensional Array in PHP

    In PHP, an array element can be an object that includes another array. An array of arrays is called a two-dimensional array or a matrix and is a commonly used data structure in computer programming. In PHP, you can see all the elements of a two-dimensional array either by using the "print_r" function, which prints all array elements, or by iterating through the arrays manually to examine each value.

  • How to Prevent Concurrent Access to a Method in Java

    Modern processors with multiple cores can take advantage of concurrent Java applications. A concurrent application is one that executes several operations simultaneously. Concurrency introduces unique challenges that must be addressed to avoid problems. One major problem occurs when two threads of execution each access the same method simultaneously. One thread may interfere with another and make data unreliable. To control this problem, you can prevent concurrent access to a method using the synchronization feature of Java.

  • How to Convert HEX to RGB in Java

    The Java programming language has a rich library that specializes in graphical user interfaces. You can use this library to create colorful applications. Java encodes colors as a set of three numbers that represent the intensity of the colors red, green and blue. Each color has 255 different possible values. Color codes are occasionally listed in hexadecimal instead of decimal. You can declare Java Color objects using either a decimal or hexadecimal, and then get the RGB values. This allows you to easily convert hexadecimal color codes to RGB color codes.

  • How to Access Elements in a Two-Dimensional Array

    Arrays provide a way to store data when writing code in a programming language. Arrays store data as an collection of elements, with each element having an identifier know as an index Arrays can be varying sizes, can hold a variety of data types and can be multidimensional. The simplest form of a multidimensional array is a 2-d array, which can be thought of as an "array within an array." Multidimensional arrays are useful when you want to put data in a table format, or organize data with rows and columns.

  • How to Create a Vector List

    A vector is a re-sizable container used to store data sequentially in a computer program. Vectors are similar to arrays, which are also containers used to store data, and which exist in many different computer programming languages. However, vectors have some benefits over other storage objects that include deques and lists. Because the C programming language has been around so long and has been used for many complex numerical calculations, this article will discuss creating a vector in C.

  • How to Use Java Vectors

    In the Java programming language, the built-in Vector class implements a thread-safe sequence containing a variable number of objects. Unlike conventional arrays -- for which the capacity must be known at declaration time, when the computer reserves all required memory -- your code can grow and shrink Vectors as needed. A given Vector can contain objects from very different classes; Vectors do not impose any restriction on that. You can create and use Vectors in your Java code.

  • How to Declare an Array of Integers in Java

    Unlike some other languages, Java does not have implicit variable declaration. That is, you can't just start using a new variable in your code and trust that it will be created. You have to declare every variable and this is true for arrays as much as it is for single variables. Declaring an array of integers is simple and you can actually create the array in the same line if you wish or leave it to be initialized later.

  • How to Store Integers in an Array in Java

    The Java language allows you to store data within many different types of structures. Arrays are among the most commonly used, as they are straightforward to create and efficient to access. You can store elements of any data type in Java arrays, whether you are using primitive or object types. Learning to use arrays is a vital skill in Java programming, so creating an integer array is a good exercise to help build a foundation as a developer.

  • How to Find a Multiplicative Inverse in Java

    The multiplicative inverse of a number is its reciprocal; put another way---it is one divided by the number. In the Java programming language, you can find the multiplicative inverse by using the Java Math class. The Math library has a function for raising numbers to a given power. This function can be used to solve the multiplicative inverse by raising a power to -1. Any number raised to -1 is equal to the reciprocal of that number.

  • How to Reverse the Order of a Vector in C++

    C++ is an object oriented programming language. In layman's terms, C++ focus is to create reusable and modular code. Objects are complex structures that have data components and functions to operate in the data, all contained under a single structure. Vector objects are very useful because they are widely applied as they are often used in math physics and help model other data structures. Reversing the elements of a vector helps you understand the vector objects better.

  • How to Use Ternary Operator in Java?

    The ternary operator, or ? operator, is a compact way of writing an if/else statement. It is present in many programming languages, including Java. Ternary statements can be used in Java whenever an if/else statement is needed. The ternary statement may improve the readability of your program by combining the predicate and consequent statements of an if statement into one line. The basic syntax for a ternary statement is this: (predicate) ? (consequent statement if predicate is true) : (consequent statement if predicate is false).

  • How to Find the Average of an Array in Java

    The Java programming language has a variety of methods for storing and organizing data. One such method is the array. An array is a collection of data that resides in sequential order in computer memory. The data can be any legal data type, like numbers, letters and objects. One interesting feature about an array is that it can be used to derive additional data about the data it contains. For example, you can use arrays to find the average of the numbers in an array.

  • How to Remove Points From an Array in Java

    Programming languages provide you with many techniques for manipulating and storing data. One of the simplest data storage techniques is the array. An array is a sequence of like data types, which can be numbers, letters or references to objects. Removing elements from an array is the same regardless of what the array is storing. For example, the syntax for removing points from an array storing coordinates is the same as removing a string from an array of strings. The syntax is fairly simple, and learning how to manipulate arrays is a good first step in learning a programming language.

  • How to Initialize an Empty Array in C

    In programming, coders use variables to store pieces of data to access and manipulate throughout the course of the program. While regular variables store single pieces of data, either discrete numbers or characters, arrays are variables that have multiple slots that can hold multiple pieces of data. In the C programming language, arrays serve a number of purposes. These include allowing programmers to store strings of characters and make dynamic, rather than static, references to variables. But, before a programmer can use an array, he has to declare one.

  • How to Delete the First Element of C String

    The C string in C programming language is a character sequence that ends with a null (NUL) character. It is stored as an array of the character elements. The C language uses it to represent the string type of data. You can find the length of a C string by searching for its NUL element. An array that contains a null character before its last element is not recognized as a string in a C program. By removing the first NUL element of a character string, you can ensure the correct execution of your C program.

  • How to Navigate Two-Dimensional Arrays in Java

    The array is the most fundamental of data structures in computer science. It simply sets aside a block of memory for a preset number of objects, and allows the programmer to access each object by its place in the line. In Java, it is also possible to declare arrays as having multiple dimensions. A two-dimensional array would, conceptually, be a grid of objects, with each object accessible by its row and column in the grid.

  • How to Reverse a Number in C

    The algorithm for reversing a number involves stripping off the rightmost digit of the number and placing it into a new variable. As you strip each digit from the original number, move the value of the new variable over one position and add on the new digit. In C, the procedure for determining the rightmost digit involves the use of the modulus operator, %. The modulus operator gives the remainder of a division. For instance, 462 % 10 is 2 since 462 divided by 10 is 46 with a remainder of 2.

  • How to Reverse an Array of Numbers With Java

    Reversing the content of a Java array is a common task, and does not require much code. There are different possible approaches to reversing array order, but the simplest is by working from each end of the array towards the center, swapping each pair of elements in turn. To swap element positions within an array, you need to copy around half of them into temporary variables as you go, since as soon as you move an element into a different position, you will have overwritten another element.

  • How to Add Elements to an Array in C-#

    C# is a programming language created and maintained by Microsoft. It is used to create computer programs for Microsoft's .NET runtime environment, which runs on Microsoft Windows. C# can be used to store single items of data. An array is a more complex data store, which allows you to store data as though they were a list. The number of lists that make up an array can also be multiple (known as multidimensional) for even more complex arrays.

  • How to Recover RAID 5 in the Intel Matrix

    RAID, or Redundant Array of Inexpensive Disks, increases data storage reliability through redundancy or the duplication of data over multiple disks. Motherboards with Intel Matrix Storage Technology support various levels of RAID implantation including RAID 5, which writes overlapping data to three or more hard drives using a method known as "striping." If one of the drives in a RAID 5 array fails, you can install a new drive and rebuild the array by using data overlapped on the other good drives in the system. To rebuild a RAID array with an Intel controller or motherboard, you must your Intel…

  • How to Implement the Stack ADT

    A stack is an ordered set of the elements added and removed only from one end. This end is called the top of the stack. The first element placed in the stack will be at the bottom of the stack. The last element placed in the stack will be at the top of the stack. The Stack ADT (Abstract Data Type) includes the description of the specific data structure and the operations permitted to perform on the stack. The use of data arrays in a program allows you to implement Stack ADT.

  • How to Speed Up the RAID Array Disk Access Time

    The RAID array is a hard drive setup, designed to use multiple hard drives to enhance data access time. It is also used to secure and protect data. Use a feature called "Repair Volume" to repair any errors or bugs that could potentially slow down your system. You need administrative rights and privileges to complete this task.

  • How to Stop the Scrubbing Process in Disk Array 5

    A disk array is designed to provide increased availability and reliability of the hard drive storage by combining multiple disk drives into a logical unit. The large size of the disk array storage system requires continuous monitoring of the bad blocks and parity errors formed on the hard drive disks. Disk scrubbing techniques allow you to scan for bad sectors or parity errors and relocate them to an undamaged area to preserve data integrity. Stopping a disk array scrubbing process might be necessary during high demand for the system resources.

  • How to Make a BGA Stencil

    A ball grid array (BGA) stencil holds a matrix of solder balls onto a printed circuit board. The BGA stencil is a technology for surface mounting electrical components onto a circuit board. In manufacturing scenarios the stencil, usually made of polyimide, a light-weight and temperature resistant polymer, is laser-cut based on a digital model. Solder balls are placed in the holes of the stencil. A non-residue adhesive holds the balls and stencils to the board before the balls are soldered on. Although an industry-quality BGA stencil cannot be made at home, so long as you have access to a laser…

  • Step-by-Step Array Configuration for HP

    The HP ProLiant includes a Smart Array controller card that allows you to set up a redundant array of independent disks, or RAID, configuration on the server. The Smart Array RAID controller includes the HP Array Configuration Utility, accessible from operating system. The ACU allows you to set up a RAID 0, RAID 1, RAID 1+0, RAID 5 or RAID 6 configuration, depending on the number of hard disk drives installed to the computer.

  • How to Insert a Disk in an Intel Matrix Storage Manager Driver

    Intel Matrix Storage Manager is a program used on Windows computers that allows you to use different hard disk drives on a system without all the drives running at the same time. This allows you to cut down on power consumption, saving energy and money at the same time. The software displays all known disk drives; when you select a drive, the Intel programming powers the desired drive on. In order to add a new disk drive to the Intel Matrix Storage Manager system you need to properly hook up and install it onto your computer system.

  • Array Functions in Excel

    Excel refers to a spreadsheet application software designed by Microsoft for use with Mac OS X and Microsoft Windows operating systems. Excel offers a macro programming language, pivot tables and calculation tools that include array functions.

  • How to Change From Array to Single Drive

    Different levels of RAID storage use arrays of hard drives in different manners. In all cases except for RAID 0, the ultimate goal of the array is to provide some form of data redundancy so that no data is lost when a hard drive needs to be replaced. There are some situations, though, where a single drive can provide better performance than an array of disks. For example, a single SSD drive is many times faster and more reliable than an array.

  • How to Fix a Bad RAID 5 Drive

    A RAID 5 configuration uses multiple hard drives attached to a RAID adapter to speed up data access on your computer. These drives also have a level of redundancy due to the way the data is stored on the disks. When a drive goes bad in the RAID array, the entire array operates in a degraded state. The faulty drive needs to be replaced in order to make the RAID array work properly once more.

  • How to Rebuild a Degraded RAID 5 Intel Matrix

    A RAID array, or redundant array of inexpensive disks, is a method used to improve data access and integrity through the use of multiple hard drives. A RAID array can be implemented as a hardware solution through a RAID adapter, which the hard drives connect to, or a software solution handled through the operating system. Intel makes a RAID adapter that supports a RAID 5 configuration, which uses at least three hard drives. Data is distributed between all but one of the hard drives in a process called striping. This data storage method speeds up access. The last drive contains…

  • How to Remove a BGA Chip

    Ball grid array (BGA) chips became popular because of their simple and efficient installation and removal procedures as well as reliability while integrated to circuit boards. Since the balls of a BGA chip sit below it, it takes up less space on the circuit board than PLCC chips, which have pins that sit on each side of the chip. Since BGA chips have a sensitivity to temperature, you must heat the chip rather slowly before removing it from its circuit board.

  • Types of IC Packaging

    An integrated circuit (IC) is an electronic circuit designed to accomplish a task with all of the circuit's components integrated into a single rectangular package that--in most cases--can be mounted to a circuit board. The circuits contained in ICs can vary from simple switching circuits to radio circuits to a central processing unit (CPU). While there are dozens of variations, all IC packages fall into one of three categories: through-hole, surface mount and contactless packages.

  • Raid Disk Array Tutorial

    A RAID, or redundant array of inexpensive disks, is a special configuration of multiple hard drives. RAIDs come in several configurations and are designed to improve data access speed, data transfer rates and data redundancy. Other than mirrored RAID drives, RAID setups are not intended to be a true backup solution. Instead, RAIDs protect your data by writing it in such a way that a single drive failure does not compromise the data on the array.

  • What Is a Ball Grid Array?

    Surface mount technology refers to a method for mounting electrical components to printed circuit board surfaces. A ball grid arrays, or BGA, is a type of surface mounted packaging designed for use with integrated circuits.

  • Packaging Specs

    Integrated circuits, or ICs, are etched into tiny silicon chips. ICs may be part of larger electronic circuits or they may be a complete system by themselves. These components are packaged in ceramic, plastic, leadless or glass. The sizes of the packages have assigned names and specifications.

  • How to Recover Data From Corrupted & Failed RAID 5 Drives

    A redundant array of inexpensive disks, called RAID, is a hard-drive setup that uses several hard drives for data protection and access speed. RAID 5 is a specific type of RAID setup that spreads the data equally across the drives and has an indexing option to recover from a drive failure. If a hard drive completely fails or is corrupted in the RAID 5 array, you can replace the drive and rebuild the volume to recover all of the data. If two or more drives fail at once, the array will fail and lose all data.

  • How to Add a Drive to a RAID 5 Intel Matrix

    The Intel Matrix Storage Technology is a RAID controller used to create RAID arrays featuring multiple hard drives. A RAID array is a number of hard drives connected to a RAID adapter instead of directly to the motherboard interface. The RAID controller presents the multiple hard drives as one volume, and uses several different methods to improve data protection and data access speed. RAID 5 spreads the data throughout several different disks, with a storage method called striping. This speeds up data access. The data protection is achieved through parity, which provides a striping index that can be recreated if…

  • How to Remove an Array Drive

    A RAID array uses multiple hard drives attached to a RAID adapter to provide data protection and improved data access speeds. The hard drives are connected to a separate RAID adapter installed in the computer or a RAID adapter on the motherboard. The data stored on the drives are either mirrored across multiple drives or distributed throughout the array. A failed drive can easily be replaced without a loss of data in many RAID configurations.

  • How to Replace a Bad Drive in RAID 5

    A redundant array of inexpensive disks (RAID), uses multiple hard drives to protect data against hardware failure. Data is either mirrored or distributed across the drives, so a single drive failure does not cause data loss. RAID 5 uses block level striping along with distributed parity. This means data is broken into smaller chunks and placed on different drives in the array to both speed up data access and protect the data in the event of a drive failure. Thus, the data on the failed drive is recreated. If multiple drives fail in a RAID 5, the array is destroyed,…

  • How to Select the Raid Array on a HP Computer

    Hewlett-Packard, or HP, first formed in 1935, is a major international technological development firm. Though HP produced miscellaneous electronics in its early days, it moved into the computer market en masse in 2002 with its purchase of Compaq. Some HP computers allow the use of RAID technology. RAID (redundant array of independent/inexpensive disks) allows for greater data security and reliability on a hard drive via the use of redundant data storage. First introduced as a technology in 1987, it allows several cheap disk drives to be sorted into an array, with the ability to divide and copy data across several…

  • What Is a BGA Chip?

    According to Tech-faq, a ball grid array (BGA) is a type of surface-mount packaging used for integrated circuits. Conductive metal balls are used instead of the traditional pins. These balls allow electrical current to flow between the processor and the computer motherboard.

  • How to Create an Array With RAID 5

    A RAID array is a collection of hard drives connected using a hardware controller and software into a single drive. RAID 5 arrays connect three or more drives, saving your data across the drives in a way that speeds up both data access and allows for the failure of one of the drives without the loss of any of the data. It does this by spreading the data evenly across the drives and creating backup data across the drives evenly as well. The redundancy means that even with the failure of a drive, the system continues to work---albeit at reduced…

  • How to Use Arrays in Turbo C++

    In Turbo C++, arrays are used to hold collections of data that are unlikely to change in size very often. They are faster and, in general, easier to use than their cousins, the vector and the linked list. Arrays can be thought of as grids to store information. The standard Turbo C++ array requires that all elements in the array share the same data type.

  • VBS Array Functions

    VBScript (VBS) is a scripting language developed by Microsoft based on Visual Basic. It is useful for web scripting as well as programming for Microsoft's Internet Information Service. Like most programming languages, VBScript contains an array datatype, but the contained functions are slightly different.

  • What Is Staggered Pin Grid Array?

    Throughout the history of the integrated circuit, the arrangement of the metal connector pins has changed. As the need for larger and faster data transfers has increased, the pin grid array has evolved to meet this need.

  • How to Build a Disk Array

    Disk arrays involve using multiple disks as a single logical entity, which has several advantages and disadvantages depending on the type of configuration you choose. If a striping-based configuration is chosen, the advantages include increased storage space as well as faster speed. When a mirrored configuration is chosen, the advantages include faster read speeds and data redundancy, which ensures safety when a single hard drive fails. There are also disk arrays designed to combine these advantages to reduce or eliminate the disadvantages.

  • What Is a Hot Spare in a Disk Array?

    Computers rely on information stored on multiple drives, or a disk array, in order to operate efficiently. There may be circumstances where this information is lost or otherwise not retrievable. A hot spare in a disk array can help compensate for this problem.

  • What Is a Diode Assembly?

    Diode assemblies, more properly called diode arrays, are groupings of diodes often into a single dual-inline package (DIP) resembling an integrated circuit (IC) suitable for soldiering to boards or inserting into sockets. Diode arrays come in different types of groupings where the diodes may be individually isolated or pre-interconnected in common ways to facilitate easier construction of larger circuits. While there are specialized types of diode arrays, there are a number of standard packages available.

  • How to Implement Three Stacks in One Array

    Efficient use of system resources is one important skill that separates the masterful programmers from the mediocre. In some circumstances, the ability to create low-level data structures that can do sophisticated operations given only one array space may be called. This example will allow you to create three or more stacks and implement them in a single array space. The code itself is written in Java, but no Java-specific features are used, and it could be translated to Python, C, or Ruby with only trivial effort.

  • How to Convert an Array to an Arraylist

    An "ArrayList" is a Windows .NET class used to make a set of values. The ArrayList class provides methods and properties that help programmers build arrays more easily. If the software code already has an array in the code file, the programmer can copy the array directly to the ArrayList class. This allows you to convert the array to an ArrayList and use the internal functions and properties to edit the values.

  • Uses of Mylar

    Mylar is a thin polyester film manufactured by DuPont Teijin Films. According to the Encyclopedia Britannica, strong synthetic fibers of polyethylene terephthalate are stretched and used to produce Mylar. Since its invention in the early 1950s, Mylar has been used in a broad array of fields, having several applications in electronics, magnetic media, imaging and graphics, industrial and packaging markets.

  • How to Understand Arrays

    Arrays are a basic computer science concept that allow data to be stored in logical groups within the same variable. For example, if you are 34 years old, you might make your "Age" variable equal 34. But what if you want to store the ages of everyone in a group, like you, your friend Bill, and your other friend Jane? With arrays, you don't need separate variables for each person. By using a single "Age" variable to store multiple ages, a computer program can examine each value in turn and compare them.

  • How to Migrate From One Disk Array to Another

    Disk array types are methods of organizing your hard drives to work in sync, such as RAID0 (which "stripes" data to two hard drives, improving access time) or RAID1 (which makes an instantaneous duplicate copy of all data on a second drive). Migrating your data between different array types necessitates a backup and reinstall of the operating system, allowing you to transfer your data with ease.

  • How to Add Array Items in VBS

    Visual Basic Scripts (VBS) are small files or blocks of code inserted into web pages. Using VBS, you can run certain functions on web pages to enhance the site's user interaction. VBS is a smaller, less robust version of the Visual Basic language, but it's still used in some web applications. The code includes the ability to add arrays to the web pages. Adding arrays involves defining a variable and assigning each piece of data to the indexes.

  • Help With Excel Array Fomula

    When working with spreadsheets, array formulas can be an extremely powerful tool. They can analyze groups of data already in the spreadsheet and return one or a few answers. They work best with conditional formulas, allowing you to search a range of data to find an answer or an average of certain things. Array formulas can be useful, or they can be overused.

  • About Arrays

    One of the fundamental constructs of computer science and mathematics is the array. It simply represents a collection of elements. A list of numbers, names, or any other theoretical construct where sequential elements are indexed and organized.

  • How to Reverse an Array

    Virtually all programming languages use an array structure to store a list of data. For example, "array(76, 3, 5)." The reversed array would contain the same data but backwards i.e. "new_array(5, 3, 76)." Perl, a freely accessible programming language, allows you to implement a very elegant algorithm to reverse an array that requires only four lines of the code. The algorithm uses Perl built-in functions "pop" and "push."

  • How to Sort an Array

    Although you can sort an array manually by writing your own code for it, many programming languages have a built in function that allows you to sort an array using just a line or two of code. This article explains how to sort an array in Java. In Java, the arrays class contains a sort method that sorts the items in an array for you.

  • How to Update a String Array

    An array stores collections of data that are of the same base data type. An array can consist of zero to many elements and are numbered starting with the numeral zero. The total number of data items in the array comprises the overall length and the specific position of the array that a data element is stored is the array index. In Java, arrays are able to have a base data type of strings, which consist of one or many ASCII characters and can be manipulated similarly to any other data type stored in an array through adding and subtracting…

  • How to Initialize an Array

    Initialize an array by creating a program that includes an iostream, an array of integers and an initialization loop. Run the output for a program to see whether the array runs correctly with help from a software developer in this free video on computers.

  • How to Use C Arrays in C++

    A C array is a data structure that stores many elements of the same data type. C arrays, when you use them in C++, are called "dumb" arrays. Arrays store default data types or user-defined ones in a contiguous area of memory. You can access an element via indexing, where the index is a positive integer that indicates the element's position, counting from zero.

  • How to Create an Array in C

    Arrays offer the most efficient method for storing lists of data in C. They're very easy for the programmer to create and use, and they're remarkably quick for the computer to access and update. However, they can waste a lot of memory, so they're not always the best thing to use. When not used carefully, they can also cause crashes, bugs and system instability.

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