How to Replace Single Quotes in Java

Replacing text in Java is difficult for special characters. Because the compiler interprets and views some special characters, such as quotes, as an indicator of a string, the code throws an error when trying to replace text with regular expressions. But if you need to replace a single quote with double quotes for preparation to send to a database query, you can use of the escape character ("\") to tell the compiler that the quote is literal and shouldn't be evaluated as a string variable designator.

Instructions

1. Create a string. The following line of code is the syntax for a string creation in Java:
   String myString = "My code's replacement string.";

2. Replace the single quote character and assign it to a new variable. This line of code replaces the single quote to double quotes:
   String myNewStringNoQuotes = myString.replaceAll("'", "\\\\'");

3. Print the output to the user. To verify the quote has been replaced, print it to the console.
   System.out.println(myNewStringNoQuotes);

4. Evaluate the output. The example code prints out the following text:
   My code''s replacement string.

References

• coderanch.com