What are the limitations of switch case in Java?

What are the limitations of switch case in Java?

The switch case in Java has several limitations, such as:

1. It can only evaluate expressions of certain types (like int, char, String, etc.).
2. It does not support ranges or complex conditions.
3. The case labels must be constant expressions.
4. It can lead to code duplication if many cases share the same logic.

Can you explain why it doesn't support ranges?

Switch case is designed for discrete values, not ranges. For ranges, you would typically use if-else statements, which allow for more complex conditions.

Are there any performance issues with using switch case?

In general, switch case can be more efficient than multiple if-else statements, especially with many cases. However, performance can vary based on the number of cases and the type of data being evaluated.

What alternatives do I have if switch case is limited?

You can use if-else statements for more complex conditions, or consider using polymorphism and design patterns like Strategy for better flexibility.