Exercises. Keyboard control Ball

1  PackageCom.java7.keyboardcontrolmyball.main;2 Importjava.awt.*;3 Importjava.awt.event.*;4 5  Public classKeyboardcontrolmyball {6      Public Static voidMain (string[] args) {7Frame W =NewFrame ();8W.setsize (300,400);9         TenMypanel MP =NewMypanel (); One W.add (MP); A          - W.addkeylistener (MP); - Mp.addkeylistener (MP); the          - w.show (); -     } - } +  - classMypanelextendsPanelImplementsKeyListener { +     intx = 30; A     inty = 30; at      Public voidPaint (Graphics g) { -G.filloval (x, Y, 20, 20); -     } -  - @Override -      Public voidkeypressed (KeyEvent arg0) { in         if(Arg0.getkeycode () = = 37) { -x--; to         } +         if(Arg0.getkeycode () = = 38) { -y--; the         } *         if(Arg0.getkeycode () = = 39) { $X + +;Panax Notoginseng         } -         if(Arg0.getkeycode () = = 40) { they++; +         } A //System.out.println (Arg0.getkeycode ()); the repaint (); +     } - @Override $      Public voidkeyreleased (KeyEvent e) { $     } - @Override -      Public voidkeytyped (KeyEvent e) { the          -     }Wuyi}

Exercises. Keyboard control Ball