0320 --- 顯示一個按鈕

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");

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

JPanel jplPanel = new JPanel();

jplPanel.add(jbnButton1);

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

System.out.print("tony stark");

}

}