课本的案例！
Example9_4.java
[sourcecode language=”java” title=”Example9_4.java”]
import java.awt.*;
import javax.swing.*;

public class Example9_4 {
public static void main(String args[]) {
new WinGrid();
}
}
class WinGrid extends JFrame{
/**
*
*/
private static final long serialVersionUID = 1L;
GridLayout grid;
JPanel chessboard;
WinGrid() {
chessboard = new JPanel();
grid = new GridLayout(12,12);
chessboard.setLayout(grid);
Label label[][] = new Label[12][12];
for(int i=0;i<12;i++) {
for(int j=0;j<12;j++) {
label[i][j]= new Label();
if((i+j)%2==0) {
label[i][j].setBackground(Color.black);
}else {
label[i][j].setBackground(Color.white);
}
chessboard.add(label[i][j]);
}
}
add(chessboard,BorderLayout.CENTER);
add(new JButton("北方参战者"),BorderLayout.NORTH);
add(new JButton("男方参战者"),BorderLayout.SOUTH);
add(new JButton("西方参战者"),BorderLayout.WEST);
add(new JButton("东方参战者"),BorderLayout.EAST);
setBounds(10,10,570,390);
setVisible(true);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
validate();
}
}
[/sourcecode]
效果图: