鼠标事件代码示例：
import java.awt.*;
import java.awt.event.*;
class MouseAndKeyEvent
{
private Frame f;
private Button but;
private TextField tf;
MouseAndKeyEvent()
{
init();
}
public void init()
{
f=new Frame("my frame");
//对frame进行基本设置
f.setBounds(400,200,500,300);
f.setLayout(new FlowLayout());
tf=new TextField(20);
but=new Button("my but");
//讲组件添加到frame中
f.add(tf);
f.add(but);
//加载一下窗体上的事件
myEvent();
//显示窗体
f.setVisible(true);
}
private void myEvent()
{
f.addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{
System.out.println("我被关闭了 ");
System.exit(0);
}
});
tf.addKeyListener(new KeyAdapter()
{
public void keyPressed(KeyEvent e)
{
int code=e.getKeyCode();
if(!(code>=KeyEvent.VK_0&&code<=KeyEvent.VK_9))
{
System.out.println(code+"...是非法的");
e.consume();
}
}
});
but.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
System.out.println("action ok");
}
});
but.addMouseListener(new MouseAdapter()
{
private int a=1;
public void mouseEntered(MouseEvent e)
{
System.out.println("鼠标进入到该组件"+a+++"次");
}
public void mouseClicked(MouseEvent e)
{
if(e.getClickCount()==2)
System.out.println("双击动作");
}
});
but.addKeyListener(new KeyAdapter()
{
public void keyPressed(KeyEvent e)
{
if(e.getKeyCode()==KeyEvent.VK_ENTER&&e.isControlDown())
System.out.println("ctrl and enter run");
//System.exit(0);
//System.out.println(KeyEvent.getKeyText(e.getKeyCode())+"..."+e.getKeyCode());
}
});
}
public static void main(String[] args)
{
new MouseAndKeyEvent();
}
}
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