Juego Matriz Pares

import java.util.Random;

public class Matriz_juego_ap
{
    static int N = 5;
    public static void main(String [] args)
    {
        int [][] matriz = new int[N][N];
        llenarMatriz(matriz);
        mostrar(matriz);
        buscarPares(matriz);
    }


    public static void llenarMatriz(int [][] m)
    {
        Random rnd = new Random();
        for(int i = 0; i < N; i++)
            for(int j = 0; j < N; j++)
                m[i][j] = (int)(rnd.nextDouble()*2);
    }

    public static void mostrar(int [][] m)
    {
        for(int i = 0; i < N; i++)
        {
            for(int j = 0; j < N; j++)
                System.out.print( m[i][j] + " ");
            System.out.println();
        }
    }

    public static void buscarPares(int [][] m)
    {
        int par1, par2;
        for(int i = 0; i < N; i++)
        {
            par1 = 0; par2 = 0;
            for(int j = 0; j < N-1; j++)
            {
                if(m[i][j] == 1 && m[i][j+1] == 1 && par2 == 0)
                {
                    par1++;
                }else if(j == 2 && m[i][j-2] == 1 && m[i][j-1] == 1 && m[i][j] == 0 && m[i][j+2] == 1 && m[i][j+1] == 1){
                    par2++;
                }
            }
            if(par2 == 0)
                System.out.println("Pares en la linea [ " + i + " ]: " + par1);
            else
                System.out.println("Pares en la linea [ " + i + " ]: Hay 2 Pares de 1");
        }
    }

}