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              Create a program with an interface consisting of an open panel 
                area and two buttons below it. Clicking on one button labeled 
                "Go" causes a small circle to appear at a random point 
                on the panel. Clicking on the "Clear" button causes 
                the panel to be cleared. 
 
Modify the MultiPanelWithEvents 
                example so that it offers subtraction and division.
 
Modify the MultiPanelWithEvents 
                example so that it works as a simple calculator, i.e. a subsequent 
                operation uses the result of the previous operation. It will need 
                a clear button.
 
Modify a GUI applet created in Chapter 
                6 : Java : Exercises to run as a standalone program in a frame. |  |  |