Question

jframe和frame的区别

Answer 1

import javax.swing.JFrame;
public class T2 extends JFrame{

private static final long serialVersionUID = 1L;

@SuppressWarnings("static-access")
public void init(){

//传递参数使得关闭按钮有效
this.setDefaultCloseOperation(this.EXIT_ON_CLOSE);

this.setTitle("JFrame");
this.setSize(320,240);
this.setVisible(true);

}
public static void main(String[] args){
T2 jframe = new T2();
jframe.init();
}
}

frame加监听使得关闭按钮有效

[html] view plain copy

import java.awt.Frame;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
public class T2 extends Frame{

private static final long serialVersionUID = -5650765517644858632L;
public void init(){
this.setSize(320,240);
this.setTitle("Frame");

//加监听使得关闭按钮有效
this.addWindowListener(new WindowAdapter(){
@Override
public void windowClosing(WindowEvent e){
System.exit(0);
}
});

this.setVisible(true);
}

public static void main(String[] args){
T2 frame = new T2();
frame.init();
}
}

Answer 2

前面有J的都是在以前的基础上改进过的，现在一般用改进后的了