Java 网格布局

/*
 * 网络布局
 * */
package com.swing;
import java.awt.GridLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
class gridlayout extends JFrame{
    int size=6;
    private JButton jbtn[]=new JButton[size];
    public static void main(String[] args){
         gridlayout glout=new gridlayout();
    }
      
    public gridlayout(){
        this.setTitle("网格布局");
        //设置大小
        this.setSize(400,200);
        //设置位置
        this.setLayout(new GridLayout(3,3));
        for(int i=0;i<size;i++){
            jbtn[i]=new JButton(String.valueOf(i));
            this.add(jbtn[i]);
        }
        this.setLocation(100,100);
        //设置关闭时关掉进程
        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        this.setVisible(true);
    }
}