清华大学：JAVA教学课件：7-7

import java.awt.*;
import javax.swing.*;
public class GridLayoutDemo {
private JFrame frame;
private JButton b1,b2,b3,b4,b5,b6;
public static void main(String args[]) {
GridLayoutDemo that = new GridLayoutDemo();
that.go();
}
void go() {
frame = new JFrame("Grid example");
Container contentPane = frame.getContentPane();
//为内容窗格设置3行2列GridLayout布局管理器
contentPane.setLayout(new GridLayout(3,2));
b1 = new JButton("grid_1");
b2 = new JButton("grid_2");
b3 = new JButton("grid_3");
b4 = new JButton("grid_4");
b5 = new JButton("grid_5");
b6 = new JButton("grid_6");
//添加按钮
contentPane.add(b1);
contentPane.add(b2);
contentPane.add(b3);
contentPane.add(b4);
contentPane.add(b5);
contentPane.add(b6);
frame.pack();
frame.setVisible(true);
}
}