java 按鈕

import java.awt.*;

import java.awt.event.*;

import javax.swing.*;

class Test

{

public static void main(String[] args)

{

JFrame jtfMainFrame=new JFrame("Which Button Demo");

jtfMainFrame.setSize(450, 150);

JButton  jbnButton1 = new JButton("Button 1");

 JPanel jplPanel = new JPanel();

jplPanel.add(jbnButton1);

jtfMainFrame.getContentPane().add(jplPanel, BorderLayout.CENTER);

jtfMainFrame.setVisible(true);

}

}

ctrl c:跳開