j_fir_choose.java

单机黑白棋显示

//选择黑白棋的窗口类
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class J_FIR_Choose extends JFrame
{
	public final int[] Choice = {-1};

	public J_FIR_Choose(String userName)
	{
		super(userName+"：请选择黑/白棋");
		Container c = getContentPane();
		c.setLayout(null);
		
		final JRadioButton[] r = {new JRadioButton("黑棋"),new JRadioButton("白棋"),new JRadioButton("随机")}; 
		
		int i;
		
		ButtonGroup rg = new ButtonGroup();
		for (i=0; i<r.length; i++) {
			c.add(r[i]);
			r[i].setBounds(new Rectangle(40,30+i*25,100,25));
			rg.add(r[i]);
			r[i].setSelected(false);
		}
		
		JButton[] b = { new JButton("确定"),new JButton("取消") };
		
		c.add(b[0]);
		b[0].setBounds(new Rectangle(30,120,80,35));
		c.add(b[1]);
		b[1].setBounds(new Rectangle(120,120,80,35));
		
		b[0].addActionListener(new ActionListener()
			{
				public void actionPerformed(ActionEvent e)
				{
					int j;
					for (j=0;j<r.length;j++) {
						if (r[j].isSelected()) break;
					}
					
					Choice[0] = j;					
				}
			}
		);
		
		b[1].addActionListener(new ActionListener()
			{
				public void actionPerformed(ActionEvent e)
				{			
					Choice[0] = -2;					
				}
			}
		);
		
		
	}
}