/*
 *  ==========================================================
 *  TestFrame.java : Create a Frame that has no functionality.
 *                   Useful, huh.
 *  ==========================================================
 */

import java.awt.*;

public class TestFrame extends Frame {

    // The main method creates an instance of the class.

    public static void main( String args[] ) {    
       TestFrame t = new TestFrame();             
    }

    public TestFrame() {                    // Define window Frame.

       /* Define I/O components */

          // Source code for I/O components goes here ....

       /* Initialize and display Frame */

       setTitle("Simple Frame Interface");  // Set Frame title.
       setSize(400,120);                    // Set the Frame size.
       show();                              // Display the Frame.
    }

    public void paint (Graphics g) {        // Method for painting

          // Source code for painting on the frame goes here ....

    }
}

class QuitListener extends MouseAdapter {

    // Source code for handling of mouse events goes here ....
} 

class CelListener extends KeyAdapter {

    // Source code for handling of keyboard events goes here ....
}