Question

I have no idea what is wrong with my code, it will not compile because the compiler can not find variable k.

my code:

public class t
{
    public static void main(String args[])
    {
        int r = 10;
        int c = 10;

        char[][] map = new char[r][c];

        for(int i = 1; i < (r - 1); i++)
        {
            for(int k = 1; k < (c - 1); k++);
            {
                map[i][k] = '$';
            }
        }
    }
}

error it’s giving me:

  symbol:   variable k
  location: class t
  1 error

I keep thinking it is a scope issue, but variable k is inside of the nested for-loop, so it should be fine right?

Answer 1

You have a semicolon a the end of your “k” for loop; remove it. Change

for(int k = 1; k < (c - 1); k++);
{
    map[i][k] = '$';
}

to

for(int k = 1; k < (c - 1); k++)
{
    map[i][k] = '$';
}