What are the different types of parameters in Java?

What are the different types of parameters in Java?

In Java, there are two main types of parameters: formal parameters and actual parameters. Formal parameters are defined in the method declaration, while actual parameters are the values passed to the method when it is called.

Can you explain the difference between primitive and reference parameters?

Sure! Primitive parameters hold their values directly (like int, char), while reference parameters hold references to objects in memory. This means changes to reference parameters can affect the original object.

What about variable-length parameters?

Variable-length parameters, or varargs, allow you to pass a variable number of arguments to a method. You define them using an ellipsis (...) in the method signature.

Can you give me an example of using varargs?

Absolutely! Here's an example: public void printNumbers(int... numbers) { for (int num : numbers) { System.out.println(num); } } This method can take any number of integer arguments.