How to Tell if a Website Is Java Based?


Java and Javascript are two popular programming languages used on the Internet. Despite the similarities in their names, they are radically different in application. Java is used to create small applications called "applets," and a browser must have a special plugin for activating these applets. Javascript is a scripting language used within Hypertext Markup Language, or HTML, for executing dynamic commands. It is fairly easy to detect if a website employs either of these languages.

  • Open a Web browser and navigate to the desired website. If it is Java-based, an applet begins loading either within the page or in a separate window. If your browser does not have the Sun Microsystems Java plugin installed, you receive a notification regarding this.

  • Right-click in the page window and select the "View Page Source" option. You can also do this through a drop-down menu in many browsers.

  • Locate any "<script>" tags in the page source code. If the page is Javascript-based, it will have "<script>" tags which specify that the script type is Javascript. Such a script tag often reads <script type="text/javascript">. If the code is long and cluttered, use the browser's Search or Find function to quickly navigate to instances of words such as "script" and "javascript."

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