AWT_事件监听（Java）

约定不等于承诺〃 2023-10-04 16:21 43阅读 0赞

### AWT\_事件监听（Java） ###

package Demo01;
    
    import java.awt.*;
    import java.awt.event.ActionEvent;
    import java.awt.event.ActionListener;
    import java.awt.event.WindowEvent;
    import java.awt.event.WindowListener;
    
    public class TestActionEvent {
        
        public static void main(String[] args) {
        
            //按下按钮，触发一些事件
            Frame frame=new Frame();
            Button button = new Button();
    
            //因为addActionListener()需要addActionListener 所以我们需要构造一个addActionListener
            MyActionListener myActionListener = new MyActionListener();
            button.addActionListener(myActionListener);
    
            frame.add(button,BorderLayout.CENTER);
            frame.pack();
            //Frame.pack()这个方法的作用就是根据窗口里面的布局及组件的preferedSize来确定frame的最佳大小。
            frame.setVisible(true);
    
            WindownClose(frame);//调用关闭窗口
    
        }
        //关闭窗口事件
        private static void  WindownClose( Frame frame){
        
            frame.addWindowListener(new WindowListener() {
        
                @Override
                public void windowOpened(WindowEvent e) {
        
    
                }
                @Override
               public void windowClosing(WindowEvent e) {
        
                     System.exit(0);
                }
               @Override
                public void windowClosed(WindowEvent e) {
        
    
                }
    
                @Override
                public void windowIconified(WindowEvent e) {
        
    
                }
    
                @Override
                public void windowDeiconified(WindowEvent e) {
        
    
                }
    
                @Override
                public void windowActivated(WindowEvent e) {
        
    
                }
    
                @Override
                public void windowDeactivated(WindowEvent e) {
        
    
                }
            });
    
        }
    }
    
    //事件监听
    class  MyActionListener implements ActionListener {
        
        @Override
        public void actionPerformed(ActionEvent e) {
        
            System.out.println("你好呀！");
        }
    }