public int [][] qMatrix(int n,int init)
{
    if (n<=0) n=1;
    int [][] arr = new int [n][n];
        for (int i=0;i<arr.length;i++){
             for (int j=0;j<arr[i].length;j++) {
                 arr[i][j]=init;

            }
        }
         return arr;

   }