What is a syntax error in Visual Basic?

A syntax error in Visual Basic occurs when code violates the language's grammar or rules. This means that the structure of the code is improper, preventing the compiler or interpreter from understanding or executing it as intended. Examples of syntax errors include missing punctuation marks, using reserved words incorrectly, or not following the proper format for declaring variables or functions.

In contrast, errors caused by incorrect variable types would relate more to type mismatch errors during runtime rather than a syntax error. Undefined variables would lead to runtime errors or exceptions when the program tries to access those variables, rather than being a syntax issue. Logic mistakes pertain to errors in the program's flow or calculations, which do not fall under syntax violations but rather logical or algorithmic errors where the code runs without crashing but doesn't produce the expected results.