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

    public static void random(int tab1[][])
    {
        for (int i = 0; i < tab1.length; i++)
        {
            for (int j = 0; j < tab1[i].length ; j++)
            {
                tab1[i][j]=0;
            }

        }
    }

    public static void fillRow(int[][] tab, int row, int val)
    {
        for (int i = 0; i < tab.length; i++)
        {
            tab[row][i]=val;
        }
    }

    public static void fillCol(int[][] tab,int col, int val)
    {
        for (int i = 0; i < tab.length; i++)
        {
            tab[i][col]=val;
        }
    }

    public static void fillRowInRange(int tab[][],int row,int from, int to, int val)
    {
        for (int i = from; i < to; i++)
        {
            tab[row][i]=val;
        }
    }

    public static void fillColInRange(int tab[][],int col,int from, int to, int val)
    {
        for (int i = from; i < to; i++)
        {
            tab[i][col]=val;
        }
    }