Question

This is giving an error for me. I assumed this is syntactically correct. I have no experience with java. Only C++. Can someone tell me what I’m doing wrong?

private enum Site{
    OPEN, BLOCKED }
Site[][] grid;

final Site DEFAULT_STATE = Site.OPEN;
/**
 * Constructor.
 */
public GridClass(int N)
{
    for(int i = 0; i < N; i++)
    {
        for(int j = 0; j < N; i++)
        {
            grid[i][j] = DEFAULT_STATE;
        }
    }
}

Answer 1

You’re only declaring grid, you’re not defining it.

You’ll need something like:

Site[][] grid = new Site[N][N];