TicTacToe Logic

/*
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 * and open the template in the editor.
 */
package samplejavaproject;

import java.text.ParseException;
import java.util.Scanner;
/**
 *
 * @author sanket
 */
public class SampleJavaProject {
     static int length =3;
     static  Integer[][] matrix = new Integer[length][length];

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) throws ParseException {
//            matrix[0][0]  = 1;  matrix[0][1] = 1; matrix[0][2] = 1;
//            matrix[1][0]  = 1;  matrix[1][1] = 1; matrix[1][2] = 0;
//            matrix[2][0]  =  0;  matrix[2][1] = 1; matrix[2][2] = 0;
            int counter =0;
            Scanner in = new Scanner(System.in);
            int turn = 0;
            while(counter<length*length){
                if(turn%2==0){
                    System.out.print("USER1:");
                }else{
                   System.out.print("USER2:");
                }
                int a = in.nextInt();
                int[] ar = getPosition(a);
                if(turn%2==0){
                    matrix[ar[0]][ar[1]]= 1;
                }else{
                    matrix[ar[0]][ar[1]]= 2;
                }

//                for(int ii=0;ii<3;ii++){
//                for(int jj=0;jj<3;jj++){
//                        System.out.println("ar["+ii+"]["+jj+"]:"+matrix[ii][jj]);
//                }
//            }
                String dd = validateMove();
             //    System.out.println("dd:"+dd);
                if(validateMove()!=null){
                    break;
                }
                turn++;
    }


    }

    private static String validateMove(){
         int i=0, j=0;
            while(i<length){
                if(matrix[i][j++] == matrix[i][j] && matrix[i][j++] ==matrix[i][j] && matrix[i][j]!=null){
                      return getUser(matrix[i][j]);
                }
                i++;
                j=0;
            }

            i=0; j=0;
            while(j<length){
                if(matrix[i++][j] == matrix[i][j] && matrix[i++][j] ==matrix[i][j] && matrix[i][j]!=null){
                    return getUser(matrix[i][j]);
                }
                j++;
                i=0;
            }

            i=0; j=0;
            if(matrix[i++][j++] == matrix[i][j] && matrix[i++][j++] ==matrix[i][j] && matrix[i][j]!=null){
                   return getUser(matrix[i][j]);
            }

            i=0; j=length-1;
            if(matrix[i++][j--] == matrix[i][j] && matrix[i++][j--] ==matrix[i][j] && matrix[i][j]!=null){
                 return getUser(matrix[i][j]);
            }

            return null;
    }

    private static  String getUser(int val){
                    if(val==1){
                        return "1 win";
                    }else{
                        return "2 win";
                    }
    }

    static  int[][] matrix1 = {{1,2,3},{4,5,6},{7,8,9}};
    private static int[] getPosition(int count){
         int[] ar = new int[2];
        for(int i=0;i<3;i++){
                for(int j=0;j<3;j++){
                          if(count==matrix1[i][j]){
                              ar[0] = i;
                              ar[1] = j;
                          }
                }
            }

                              return ar;
    }

}