public boolean checkColumn(int col)
	{
		int i = 0, j = 0, count = 0;
		for(j = 0; j < 10; j++)
		{
			count = 0;
			for(i = 0; i < 9; i++)
			{
				if(j == Integer.parseInt(entries[i][col].getText()) )
				{
					count++;
				}
				if(count >= 2)
				{
					System.out.println("checkColumn() returned false at i: " + i + " j: "+ col + " with " + entries[i][col].getText()); 
					return false;
				}
				
			}
		}
		
		return true;
	}