Java五子棋小游戏（源码及效果图）

巩固Java基础时写的小Demo，源码如下：

package javagobang;

import java.io.BufferedReader;
import java.io.InputStreamReader;

public class Gobang {
	private static int BOARD_SIZE = 15;
	private String[][] board;
	public void initBoard() {
		board = new String[BOARD_SIZE][BOARD_SIZE];
		for (int i = 0; i < BOARD_SIZE; i++) {
			for (int j = 0; j < BOARD_SIZE; j++) {
				if (i==0 && j==0) {
					board[i][j] = " ┏";
					continue;
				}
				if (i==0 && j==BOARD_SIZE-1) {
					board[i][j] = " ┓";
					continue;
				}
				if (i==BOARD_SIZE-1 && j==0) {
					board[i][j] = " ┗";
					continue;
				}
				if (i==BOARD_SIZE-1 && j==BOARD_SIZE-1) {
					board[i][j] = " ┛";
					continue;
				}
				if (i==0 && j!=0 && j!= BOARD_SIZE-1) {
					board[i][j] = " ┳";
					continue;
				}
				if (i==BOARD_SIZE-1 && j!=0 && j!= BOARD_SIZE-1) {
					board[i][j] = " ┻";
					continue;
				}
				if (j==0 && i!=0 && i!= BOARD_SIZE-1) {
					board[i][j] = " ┣";
					continue;
				}
				if (j==BOARD_SIZE-1 && i!=0 && i!= BOARD_SIZE-1) {
					board[i][j] = " ┫";
					continue;
				}
				board[i][j] = " ╋";
			}
		}
	}
	public static void main(String[] args) throws Exception {
		Gobang fiveson = new Gobang();
		boolean isOver = false;
		fiveson.initBoard();
		fiveson.printBoard();
		System.out.println("输入坐标(eg:1,1)开始!");
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		String inputStr = null;
		int who = 0;
		String son = " ◉";
		while ((inputStr = br.readLine()) != null) {
			if ("".equals(inputStr) || inputStr==null) {
				continue;
			}
			if (isOver==true && "R".equals(inputStr)) {
				isOver = false;
				fiveson.initBoard();
				fiveson.printBoard();
				System.out.println("输入坐标(eg:1,1)开始!");
			}
			String[] posStrArr = inputStr.split(",");
			int xPos = 0;
			int yPos = 0;
			try {
				xPos = Integer.parseInt(posStrArr[0]);
				yPos = Integer.parseInt(posStrArr[1]);
			} catch (Exception e) {
				System.out.println("键入无效 重新落子:");
				continue;
			}
			String poString = fiveson.board[xPos][yPos];
			if (fiveson.checkPosition(xPos, yPos)) {
				System.out.println("坐标已落子 重新落子:");
				continue;
			}
			fiveson.board[xPos][yPos] = son;
			fiveson.printBoard();
			boolean result =  fiveson.think(xPos,yPos);
			if (result) {
				isOver = true;
				System.out.println(son+" 胜! \"R\"重新开始");
				continue;
			}
			who++;
			if (who%2==1) {
				son = " ◯";
			}else {
				son = " ◉";
			}
			System.out.println("交换棋手 输入坐标:");
		}
	}
	private void printBoard() {
		for (int i = 0; i < BOARD_SIZE; i++) {
			for (int j = 0; j < BOARD_SIZE; j++) {
				System.out.print(board[i][j]);
			}
			System.out.print("\n");
		}
	}
	public boolean think (int xIndex, int yIndex) {
		int count = 1;
		for(int x=xIndex-1;x>=0;x--){
            if (isEqual(x, yIndex, xIndex, yIndex)) {
            	count++;
            } else {
				break;
			}
        }
        for(int x=xIndex+1;x<=BOARD_SIZE;x++){
        	if (isEqual(x, yIndex, xIndex, yIndex)) {
            	count++;
            } else {
				break;
			}
        }
		if (count>=5) {
			return true;
		}else{
			count = 1;
		}
		for(int y=yIndex-1;y>=0;y--){
			if (isEqual(xIndex, y, xIndex, yIndex)) {
            	count++;
            } else {
				break;
			}
        }
        for(int y=yIndex+1;y<=BOARD_SIZE;y++){
        	if (isEqual(xIndex, y, xIndex, yIndex)) {
            	count++;
            } else {
				break;
			}
        }
        if (count>=5) {
			return true;
		}else{
			count = 1;
		}
        for(int x=xIndex+1,y=yIndex-1;y>=0&&x<=BOARD_SIZE;x++,y--){
        	if (isEqual(x, y, xIndex, yIndex)) {
            	count++;
            } else {
				break;
			}
        }
        for(int x=xIndex-1,y=yIndex+1;y<=BOARD_SIZE&&x>=0;x--,y++){
        	if (isEqual(x, y, xIndex, yIndex)) {
            	count++;
            } else {
				break;
			}
        }
        if (count>=5) {
			return true;
		}else{
			count = 1;
		}
        for(int x=xIndex-1,y=yIndex-1;y>=0&&x>=0;x--,y--){ 
        	if (isEqual(x, y, xIndex, yIndex)) {
            	count++;
            } else {
				break;
			}
        }
        for(int x=xIndex+1,y=yIndex+1;y<=BOARD_SIZE&&x<=BOARD_SIZE;x++,y++){
        	if (isEqual(x, y, xIndex, yIndex)) {
            	count++;
            } else {
				break;
			}
        }
        if (count>=5) {
			return true;
		}else{
			count = 1;
		}
		return false;
	}
	public boolean isEqual(int x, int y, int xIndex, int yIndex) {
		if (board[x][y].equals(board[xIndex][yIndex])) {
			return true;
		}else {
			return false;
		}
	}
	public boolean checkPosition(int x, int y) {
		String poString = board[x][y];
		if (poString!=" ╋" && poString!=" ┏" && poString!=" ┓" && poString!=" ┗" && poString!=" ┛" && poString!=" ┳" && poString!=" ┻" && poString!=" ┣" && poString!=" ┫") {
			return true;
		}
		return false;
	}
}

效果截图如下：