网格布局管理器

import java.awt.*;
import javax.swing.*;

public class Test extends JFrame{//把需要的组件全部在这里定义
	JButton [] an={null,null,null,null,null,null,null,null,null};
	int s=9;
	
	public static void main(String[] args){
		Test lx=new Test();
	}

public Test(){
		an[0]=new JButton("话梅");
		an[1]=new JButton("果脯");
		an[2]=new JButton("薯片");
		an[3]=new JButton("饼干");
		an[4]=new JButton("巧克力");
		an[5]=new JButton("腰果");
		an[6]=new JButton("锅巴");
		an[7]=new JButton("开心果");
		an[8]=new JButton("杏仁");
		
		this.setLayout(new GridLayout(3,3,15,15));//3行3列,,,15,15按钮之间行宽距离
		
		for(int i=0;i<s;i++){
			this.add(an[i]);
		}
		
		
		this.setTitle("流式布局FlowLayout");
		this.setSize(380,320);
		this.setLocation(200,200);
		this.setResizable(false);
		this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		this.setVisible(true);
	}
}