if (letter != 'D' || letter != 'A' || letter != 'B' || letter != 'O')
Your logic is flawed, you need to use && instead of || in your if statement.
Type: Posts; User: camel-man
if (letter != 'D' || letter != 'A' || letter != 'B' || letter != 'O')
Your logic is flawed, you need to use && instead of || in your if statement.