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Retrieves the extension of the specified path.
Syntax
public static String getExtension( String path )
Parameters
path
The path of a file or directory.
Return Value
Returns the extension of the specified path, or returns null if the specified path is null or does not include an extension.
Remarks
The return value includes the period (.) in the extension, such as .exe or .java.
See Also changeExtension, getDirectory, getName, getRoot, hasExtension