java流布局管理器

package com.charpter13;


 import java.awt.Container;

 import java.awt.FlowLayout;


 import javax.swing.JButton;

 import javax.swing.JFrame;

 import javax.swing.WindowConstants;


 public class Repeat2 extends JFrame {

     public Repeat2()

     {

         Container container=getContentPane();

         setLayout(new FlowLayout(2, 10, 10));

         

         for (int i = 0; i < 10; i++) {

             container.add(new JButton("Button"+i));

             

         }

         setVisible(true);

         setSize(500, 600);

         setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);

         

     }

     public static void main(String[] args) {

         new Repeat2();

         

         

     }

 }