JCSJLSQ!@##$

//JC
//Today
//Stuff
  public class Matrix{
  public static void main(String[] args){
    int[][] mat = new int[3][4];
    mat[2][2] = 1;
    mat[][] = ;
    mat[][] = ;
  for (int r = 0; r <  mat.length;r++){
    for (int c = 0; c < mat[r].length;c++){
      System.out.printf("%3d", mat[r][c]);
    }
         System.out.println();
  }
}
}