What are the best practices for using generics in Java?

What are the best practices for using generics in Java?

Some best practices include using bounded type parameters, avoiding raw types, and using wildcards appropriately.

Can you explain what bounded type parameters are?

Bounded type parameters restrict the types that can be used as arguments. For example, <T extends Number> allows only subclasses of Number.

Why should I avoid raw types?

Raw types can lead to runtime errors and loss of type safety. It's better to use parameterized types to ensure type checks at compile time.

What are wildcards and when should I use them?

Wildcards are used to represent an unknown type. Use them when you want to allow flexibility in method parameters without compromising type safety.