如何使Java applet不受限制或设置为一定的大小,我可以使用箭头键移动事物(而不是窗口),并且图像和内容将保留在原处?
You can use KeyListeners to do this task. Like this :-
class MyKeyListener extends KeyAdapter{
public void keyPressed(KeyEvent e){
switch (e.getKeyCode()){
case KeyEvent.VK_LEFT:
leftKey = true;
break;
case KeyEvent.VK_RIGHT:
rightKey = true;
break;
case KeyEvent.VK_UP:
upKey = true;
break;
case KeyEvent.VK_DOWN:
downKey = true;
break;
}
}
public void keyReleased(KeyEvent e){
switch (e.getKeyCode()){
case KeyEvent.VK_LEFT:
leftKey = false;
break;
case KeyEvent.VK_RIGHT:
rightKey = false;
break;
case KeyEvent.VK_UP:
upKey = false;
break;
case KeyEvent.VK_DOWN:
downKey = false;
break;
}
}
This is only a way how can you use the KeyListner and events. You can do it in your way.
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