Reading contents of a file into a 2D array

Question

I am fairly new to programming so layman\'s talk is appreciated.

I have been tasked to read the contents of a file, which will contain 9 values (3x3 array) and then

Answer 1

You're missing an extra step here.

Once you read the line, you have to then split the line and parseDouble on individual numbers.

int lineCount = 0;
while ((line = bf.readLine()) != null)
{
    String[] numbers = line.split(" ");
    for ( int i = 0 ; i < 3 ; i++) 
         matrix[lineCount][i] = Double.parseDouble(numbers[i]);

    lineCount++;
}

Also, your readFile doesn't need to return anything. Just make your matrix variable global.