What is the value of low when you're trying to call charAt() on it? What value are you passing in to that function? Make sure by using a debugger or adding a print statement.
And int operations...
Type: Posts; User: KevinWorkman
What is the value of low when you're trying to call charAt() on it? What value are you passing in to that function? Make sure by using a debugger or adding a print statement.
And int operations...