import java.awt.*;

import javax.swing.*;

import com.sun.javafx.geom.PickRay;
public class Swing_Test extends JFrame {
	public void CreatJFrame(String title) {
		JFrame jf = new JFrame(title);//实例化JFrame
		Container container = jf.getContentPane();
		JLabel ji = new JLabel("这是一个JFRAME窗体");
		ji.setHorizontalAlignment(SwingConstants.CENTER);
		container.add(ji);
		container.setBackground(Color.white);
		jf.setVisible(true);
		jf.setSize(400, 200);//设置窗体大小
		jf.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
		//退出方式：窗体关闭
	}
}

package com.lzw;

import java.awt.Container;
import java.awt.Dialog;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.SwingConstants;

class MyDialog extends javax.swing.JDialog{
	private static final long serialVersionUID = 1L;

		//创建JDialog窗体
		public  MyDialog(MyFrame frame){
			super(frame,"JDialog Frame",true);
			Container c = frame.getContentPane();
			c.add(new JLabel("JDialog 弹出框"));
			setBounds(20, 20, 200, 200);
		}
}

class  MyFrame extends JFrame{
	public MyFrame(){
		JFrame jf = new JFrame("ca");
		jf.setSize(500, 500);
		Container c = jf.getContentPane();
		JLabel jl = new JLabel("JDialog");
		jl.setHorizontalAlignment(SwingConstants.CENTER);
		c.add(jl);
		JButton jb = new JButton("点我点我");
		jb.setBounds(10, 10, 20, 20);
		jf.setVisible(true);
		c.add(jb);
		jb.addActionListener(new ActionListener() {
			
			public void actionPerformed(ActionEvent e) {
				// TODO Auto-generated method stub
				new Dialog(MyFrame.this).setVisible(true);
			}
		});
		
	}
}