~~~ package gui.a4; import java.awt.*; import javax.swing.*; //网格布局管理器 public class Test extends JFrame{ 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("果浦"); 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(3,3,12,13)); for(int i=0;i<s;i++) { this.add(an[i]); } this.setTitle("网格布局GridLayout"); this.setSize(380,320); this.setLocation(200,200); this.setResizable(false); this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); this.setVisible(true); } } ~~~