java 五子棋 源代码

package books;//import java.io.*;//import java.util.Arrays;import java.awt.BorderLayout;  import java.awt.Color;  import java.awt.Container;  import java.awt.Font;  import java.awt.GridLayout;  import java.awt.event.ActionEvent;  import java.awt.event.ActionListener;import javax.swing.JApplet;  import javax.swing.JButton;  import javax.swing.JFrame;import javax.swing.JOptionPane;import javax.swing.JPanel;  import javax.swing.JTextField;public class book_Gobang extends JApplet implements ActionListener {    private static final long serialVersionUID = 1L;    private static int BOARD_SIZE = 25;//定义棋盘大小。    private boolean who = true;    private boolean result=false;    private boolean continuer=true;    private int count=0;;    public JTextField textfield =new JTextField("黑方先手");    public  JButton board[][]=new JButton[BOARD_SIZE][BOARD_SIZE];    public void init() {//创建棋盘。        Container c= getContentPane();        JPanel panel = new JPanel();        c.add(textfield,BorderLayout.NORTH);        c.add(panel,BorderLayout.CENTER);        panel.setLayout(new GridLayout(BOARD_SIZE,BOARD_SIZE,0,0));//布局        for(int i=0;i<BOARD_SIZE;i++) {//添加按钮            for(int j=0;j<BOARD_SIZE;j++) {                board[i][j]=new JButton("");                board[i][j].setBackground(Color.white);                board[i][j].setFont(new Font("宋体",Font.PLAIN,2));                panel.add(board[i][j]);                board[i][j].addActionListener(this);            }        }    }    public void actionPerformed(ActionEvent e) {        if(e.getActionCommand().equals("+")||e.getActionCommand().equals("-")) {            textfield.setText("您不能下在已经有子的地方");        }else if(who) {                for(int i=0;i<BOARD_SIZE;i++) {                    for(int j=0;j<BOARD_SIZE;j++) {                        if(e.getSource()==board[i][j]) {                            board[i][j].setBackground(Color.BLACK);                            board[i][j].setText("+");                        }                    }                }                if(win("+")) {//判断是否胜利。                    JOptionPane.showMessageDialog(null, "黑方胜利！");                    textfield.setText("黑方胜利！");                }else {//否则对方落子。                    textfield.setText("请红方落子");                    who = false;                }        }else {            for(int i=0;i<BOARD_SIZE;i++) {                for(int j=0;j<BOARD_SIZE;j++) {                    if(e.getSource()==board[i][j]) {                        board[i][j].setBackground(Color.red);                        board[i][j].setText("-");                    }                }            }            if(win("-")) {//判断是否胜利                JOptionPane.showMessageDialog(null, "红方胜利！");                textfield.setText("红方胜利！");            }else {                textfield.setText("请黑方落子");                who = true;            }        }    }    public boolean win(String player) {//疯狂遍历二阶数组。        count=0;        outer://外循环        for(int i=0;i<BOARD_SIZE;i++) {//横向遍历            for(int j=0;j<(BOARD_SIZE-4);j++) {//中间循环                if(board[i][j].getText().equals(player)) {                    iner://内循环                    for(int k=j;k<(j+5);k++) {                        if(board[i][k].getText().equals(player)) {                            count++;                            if(count==5) {//五子连珠                                count=0;                                result = true;//win=true;                                continuer = false;//第一种判断win=true不再继续判断。                                break outer;//跳出外循环，返回result                            }                        }else {                            count=0;                            result = false;                            break iner;//跳出内循环，继续遍历。                        }                    }                }             }        }        if(continuer) {        count=0;        outer:        for(int j=0;j<BOARD_SIZE;j++) {//纵向遍历            for(int i=0;i<(BOARD_SIZE-4);i++) {                if(board[i][j].getText().equals(player)) {                    iner:                    for(int k=i;k<(i+5);k++) {                        if(board[k][j].getText().equals(player)) {                            count++;                            if(count==5) {                                count=0;                                result = true;                                continuer = false;                                break outer;                            }                        }else {                            count=0;                            result = false;                            break iner;                        }                    }                }             }        }        }        if(continuer) {        count=0;        outer:        for(int i=0;i<(BOARD_SIZE-4);i++) {//左下遍历            for(int j=0;j<(BOARD_SIZE-4);j++) {                if(board[i][j].getText().equals(player)) {                    int x = i;                    iner:                    for(int k=j;k<(j+5);k++,x++) {                        if(board[x][k].getText().equals(player)) {                            count++;                            if(count==5) {                                count=0;                                result = true;                                continuer = false;                                break outer;                            }                        }else {                            count=0;                            result = false;                            break iner;                        }                    }                }             }        }        }        if(continuer) {//右下遍历        count=0;        outer:        for(int i=0;i<(BOARD_SIZE-4);i++) {            for(int j=4;j<BOARD_SIZE;j++) {                if(board[i][j].getText().equals(player)) {                    int x = i;                    iner:                    for(int k=j;k<(j+5);k--,x++) {                        if(board[x][k].getText().equals(player)) {                            count++;                            if(count==5) {                                count=0;                                result = true;                                continuer = false;                                break outer;                            }                        }else {                            count=0;                            result = false;                            break iner;                        }                    }                }             }        }        }        return result;    }    public static void main(String[] args) throws Exception{        JFrame frame = new JFrame("五子棋");        book_Gobang gb= new book_Gobang();        frame.getContentPane().add(gb, BorderLayout.CENTER);            gb.init();        gb.start();        frame.setSize(550,574);        frame.setVisible(true);        }    }