Java开发网 - 关于事件的问题

Topic: 关于事件的问题

1.关于事件的问题

Posted by: hulizhong
Posted on: 2005-12-21 17:43

程序1:
package brower;
..............
public class Frame1 extends JFrame{
....................
public void Frame1 (){
............
JButton jButton9 = new JButton();
jButton9.addMouseListener(new MouseAdapter(){//单击jButton9时,出现history_1窗口
public void mouseReleased(MouseEvent e) {
history history_1=new history ();
//类history在程序2中定义
}});
(JPanel) getContentPane().add( jButton9 )
...........
}//end Frame1
.........................................
}
程序2:
package brower;
..............
public class history extends JFrame{
JButton Button1,Button2;
contentPane = (JPanel) getContentPane();
..........
public void JFrame(){
Button1=new JButton("删除1");
Button2=new JButton("删除2");
contentPane.add(Button1);
contentPane.add(Button2);
Button1.addMouseListener(new MouseAdapter(){
public void keyPressed(KeyEvent e){
JFrame frmae=new JFrame();
frmae.setVisible(true);
............................... }}//end MouseListener
setVisible(true);
}//end JFrame()
..........
}
运行程序1,这时会出现一个 Frame1 类型的窗口(窗口里一个jButton9按钮).单击jButton9,会出来一个history类型的窗口(history窗口上有两个按钮:Button1,Button2),我又单击history窗口上的Button1,按理说这时Button1按钮产生了MouseListener类型的事件,它应该调用public void keyPressed()函数,产生一个frmae窗口啊.可是frmae窗口并出现.请问问题出在哪了?

2.Re:关于事件的问题 [Re: hulizhong]	Copy to clipboard
Posted by: bagpipe117 Posted on: 2005-12-23 11:53 只可以使用一个JFrame，所以Frame1中不会再出现另外一个frame了