jpaneldemo.java

一个GUI编程的例子 一个GUI编程的例子

import java.awt.*;
import javax.swing.*;
class JPanelDemo extends JPanel {
JButton b1 = new JButton("JPanel");
JButton b2 = new JButton("Demo");
public JPanelDemo() {
setBackground(Color.white);
add(b1);
add(b2);
}
public static void main(String[] args) {
JPanel jp = new JPanelDemo();
jp.setBorder(BorderFactory.createTitledBorder("Hello,Border"));//设置边界
JFrame frame = new JFrame("JPanelDemo");
frame.setSize(200, 150);
frame.setContentPane(jp);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
}
}