This page talks about the meanings in computing related to programming; for other meanings, see extension.

In computing, an extension can be a programming concept involving elements that have been added into a programming language or a computer program.

It may also refer to an add-on which adds additional functionality to a software package (such as the usage in the highly extensible Mozilla browsers).

Sometimes, the term refers to a device driver or a driver for a certain protocol.

In order to find the directory for installing java extensions try the following code snippit.

class FindExtensionDirectory
{
public static void main(String [] args)
  {
    System.out.println("Java Extensions are run from "+System.getProperty("java.ext.dirs"));
  }
}
 

See also

• filename extension