Testing a .txt file for a Magic Square Java

Question

I didn\'t want to have to ask, but I can not figure out this assignment, and neither could the TA when I asked for help.

I have to take input from a text file, feed

Answer 1

You never change row and col in your for-loop which is a bug. For easier understanding, I suggest using two nested for-loops over rowIndex and colIndex and using a little helper to get the value from the 1-D Array like so:

int getValue(int row, int col){
    return magicSquare.get( row * _n + col );
}

Assuming the 1-D Array is a "flattened" square that is built up like (0,0), (0,1), ... (0,_n), (1, 0) , ... (_n,_n)

To make it clearer: Iterate over the square instead of using the index:

for( int row = 0 ; row < _n ; row++){
    for( int col = 0 ; col < _n ; col++){
       // Your stuff here.
    }
}