An error or exception is raised when something bad happens, but as long as our code handles it as users expect it to, it’s not a bug. A bug is when code behaves in ways our users don’t expect it to.

Bugs

• Unexpected: crashing
• they need to be fixed

Error

• Expected and handled: e.g. internet connection lost
• if an error happens and is not handled, then it IS a bug; the bug is that the error is not being handled.

References