/* Sample driver to test the Circle class */import ann.easyio.*;			// Keyboard, Screen, ...class CircleDriver extends Object{    public static void main(String [] args)     {        Screen theScreen = new Screen();           Circle c1 = new Circle( 2, 1, 5 );        Circle c2 = new Circle( 2, 1, 1 );      // "normal" constructor        Circle c3 = new Circle( -2, 5, 1, 5 );  // "alternate" constructor                theScreen.println( "c1 = " + c1 );        theScreen.println( "c2 = " + c2 );        theScreen.println( "c3 = " + c3 );            theScreen.println( "Overlap c1, c2 " + c1.overlap( c2 ) );        theScreen.println( "Overlap c1, c3 " + c1.overlap( c3 ) );        theScreen.println( "Overlap c2, c3 " + c2.overlap( c3 ) );    }}