Question

创建一个简单的java 应用程序界面，实现一个关闭按钮

1.界面上自己实现一个“关闭按钮”窗口的功能。
2.普通的记事本写的程序。不要引用eclipse的swt包等内容。（这点非常重要）

Answer 1

import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.*;

public class MyFrame extends JFrame {

private MyFrame instance = this;
/**
* @param args
*/
public static void main(String[] args) {
new MyFrame();
}

public MyFrame() {
this.setLayout(new FlowLayout());
JButton b = new JButton("close");
this.setSize(200,200);
this.add(b);
b.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
instance.dispose();
}
});
this.setDefaultCloseOperation(DISPOSE_ON_CLOSE);
this.setVisible(true);
}

}

100分呀。用JDK的SWING写的，绝对不带SWT。分呀分呀。

Answer 2

import java.awt.*;
import java.awt.event.*;

public class TestWindowEvent {
public static void main (String[] args) {
new Frame88 ("WindowAdapter");
}
}
class Frame88 extends Frame {
Frame88 (String s) {
super(s);
setBounds (300,300,200,70);
setLayout (null);
setVisible (true);
addWindowListener (new WindowAdapter() {
public void windowClosing(WindowEvent e) {
setVisible (false);
System.exit(0);
}
} );
}
}

Answer 3

import java.awt.*;
import java.awt.event.*;
public class TestWindowEvent {
JButton jb;
public static void main (String[] args) { //主函数
new F ("WindowAdapter"); //调用
}

public void F () {
jb=new JButton("关闭");
this.add(jb);
setBounds (300,300,200,70);
setLayout (null);
setVisible (true);
jb.addMouseListener (new MouseAdapter() {
public void MouseClosing(MouseEvent e) {
setVisible (true);
System.exit(0);
}
} );
}
}