关于Container 设置背景颜色

import javax.swing.*;

import java.awt.*;

import java.awt.event.*;



class MyWindowDemo extends JFrame {

	public MyWindowDemo(String name, JButton button, Color c, int w, int h) {

		super();

		setTitle(name);

		setSize(w, h);

		Container con = getContentPane();

		con.add(button);

		con.setBackground(c);



	}

}



public class test {



		public static MyWindowDemo mw1;

		public static MyWindowDemo mw2;

		public static void main(String args[]){

		JButton  butt1 = new JButton("我是一个按钮");

		//butt1.setSize(500, 300);

		String name1 = "我的第一个窗口";

		String name2 = "我的第二个窗口";

		mw1 = new MyWindowDemo(name1,butt1,Color.green,1200,468);

		mw1.setVisible(true);

		JButton butt2 = new JButton("我是另一个按钮");

		mw2 = new MyWindowDemo(name2,butt2,Color.magenta,300,400);

		mw2.setVisible(true);



	}



}