Help!! Placing obstacles on a maze.

Question

Hi, so I have a 2D int array providing me some positions let's say {3,4}{0,1} and I have a 2D char array which is full of dots '.'
All I wanna do is place an obstacle '#' in the char array at positions given in the int array. It should be really easy but couldn't figure out please help me.

Answer 1

Show us what you tried...
If not started, then take a loop, with if, where row, colomn is set in int array, assign # in char array on same row, colomn index...

Answer 2

char[][] maze = new char[5][5];
int [][] obstacles = {{1,1},{2,2},{3,3}};

for (int[] p: obstacles) {
maze [p[0]] [p[1]] = '#';
}