example7_34.java

来自「不错的教程 适合中高级人员的使用」· Java 代码 · 共 47 行

import java.awt.*;
import java.awt.event.*;
 class Win extends Frame implements KeyListener
{  Button b;
   
   Win()
   {   setLayout(new FlowLayout());
	   
         b=new Button("我是一个按钮");
         b.addKeyListener(this);
         add(b);        
	   addWindowListener(new WindowAdapter()
	   {public void windowClosing(WindowEvent e)
	   {System.exit(0);}
	   }
	   );
		 setBounds(10,10,300,300);
		 setVisible(true);
		 validate();
   }
   public void keyPressed(KeyEvent e)
   {  Button button=(Button)e.getSource();
      int x=0,y=0,w=0,h=0;
      x=button.getBounds().x;
      y=button.getBounds().y;
	  w=button.getBounds().width;
	  h=button.getBounds().height;
      if(e.getModifiers()==InputEvent.SHIFT_MASK&&e.getKeyCode()==KeyEvent.VK_X)
        {  
           button.setLocation(y,x);
        }
      else if(e.getModifiers()==InputEvent.CTRL_MASK&&e.getKeyCode()==KeyEvent.VK_E)
        {  
           button.setSize(h,w);
        }     
   }

   public void keyTyped(KeyEvent e) {}
   public void keyReleased(KeyEvent e) {}
}
public class Example7_34
{
	public static void main(String args[])
	{
		new Win();
	}
}