Крестики - нолики

gistfile1.txt

package Krestiki;

import java.util.Scanner;
import java.util.Arrays;
import java.util.Random;

public class MyKtestic {
	
	public static String [][] PlayingField =new String[3][3];
	public static String gamer;
	public static String xo;
	public static String winner;


	public static void main(String[] args) {
		
		System.out.println("Игра крестикики - нолики."); 
		
		while (true) {
		
			Begin ();
			PrintField();
		
			while (winner == null) {
			
				Running ();
				PrintField();
				CheckWinner();
			
		}
		
		System.out.println(winner);
		winner = null;
		}
	}
	
	
	public static void Begin () {
     	Scanner xo2 = new Scanner (System.in);
    	    	   	
    	for(int i=0;i<PlayingField.length;i++){
    		for(int j=0;j<PlayingField[0].length;j++)
    			{PlayingField[i][j]= "_";
    			}
    	}
    	
 		System.out.println();
	
			do {
				System.out.println("Чем будете играть (o/x)? ");
				gamer = xo2.nextLine();
				} while(!(gamer.equals("o")||gamer.equals("x")));
	
			if (gamer.equals("o")){
				System.out.println("Вы выбрали о. Первый ход делает машина. ");
				
				xo = "x";
    			gamer = "RunningMachine";
    			

			}
				
			else {
				System.out.println("Вы выбрали x. ходите первым.  ");	
				xo= "x";
    			gamer = "RunningMan";
    			
				}
			}
		
    
    public static void Running () {
    	
    	// Проверка возможности хода
    	
    	winner = "Ничья :(";
    	
    	for (int i = 0; i < 3; i++) {
            for (int j = 0; j < 3; j++) {
            	if(PlayingField[i][j].equals("_")) 
        	    	winner = null;
                    break;
                }
    	}
              	    	
    	if ("RunningMan".equals(gamer)){
    		RunningMan(xo);
    		if (xo.equals("x")){
    			xo = "o";
    			}
    		else {
    			xo = "x";
    			}
    			gamer = "RunningMachine";
		
    	}
    
    		else {
    			RunningMachine(xo);
    			if (xo.equals("x")){
        			xo = "o";
        			}
        		else {
        			xo = "x";
        			}
        			gamer = "RunningMan";
    		       	   
    			}
    }
    
	public static void RunningMachine(String xo) {
    	int si;
    	int sj;
    	Random r = new Random ();
        	
		System.out.println("ход делает машина. ");
	
		do {si=r.nextInt(3);
			sj=r.nextInt(3);
			} while(!(PlayingField[si][sj].equals("_")));
						PlayingField[si][sj]= xo;
  	}
    
    public static void RunningMan(String xo) {
    	int si;
    	int sj; 
    	Scanner xo2 = new Scanner (System.in);
    	
		do 	{
			System.out.println();
			System.out.println("Ваш ход.  ");
			System.out.println("Введите номер ячейки по  вертикали: ");
			si = xo2.nextInt();
			System.out.println("Введите номер ячейки по горизонтали: ");
			sj = xo2.nextInt();
			} while(!(si<=3 & sj<=3 && PlayingField[si-1][sj-1].equals("_")));
				PlayingField[si-1][sj-1]= xo;
    	}
    
    public static void CheckWinner() {
    	
        // Проверка 
    	// по горизонтали
    	
        for (int i = 0; i < 3; i++) {
            if (PlayingField[i][0] == PlayingField[i][1] 
            		&& PlayingField[i][1] == PlayingField[i][2]
                    && PlayingField[i][0] != "_") {
                winner = gamer;
                break;
            }
        }
 
        // по вертикали
        if (winner == null) {
        
        	for (int i = 0; i < 3; i++) {
            if (PlayingField[0][i] == PlayingField[1][i] 
            		&& PlayingField[1][i] == PlayingField[2][i]
            		&& PlayingField[0][i] != "_") {
                winner = gamer;
                break;
            }
        }
        }
 
        // по диагонали 
        if (winner == null) {
        
        if (PlayingField[0][0] == PlayingField[1][1] 
        		&& PlayingField[1][1] == PlayingField[2][2]
                && PlayingField[0][0] != "_") {
                winner = gamer;
            }
        }
 
        // по второй диагонали 
        if (winner == null) {
     
            if (PlayingField[0][2] == PlayingField[1][1] 
            		&& PlayingField[1][1] == PlayingField[2][0]
                    && PlayingField[0][2] != "_") {
                winner = gamer;
             
            }
        }
        
        // проверка на победителя
        
        if (winner != null){
        	        	
	        if ("RunningMachine".equals(winner)){
	        	winner = "Вы выграли ;)";
	        }
	        else if ("RunningMan".equals(winner)){
	        	winner = "Вы проиграли :(";
	    	}
	    	else {
	    		winner = "Ничья :(";
	    			}
        }
    	    	        
    }
 
	//блок печати 
    public static void PrintField() {
    	
		for( int i = 0;i<PlayingField.length;i++){
		for(int j=0;j<PlayingField[0].length;j++)
		{System.out.print(PlayingField[i][j]+" ");
		}
		System.out.println();
		}
		System.out.println();
		}
        
}