What are the different types of parameters in Java?

What are the different types of parameters in Java?

In Java, there are mainly two 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 value parameters and reference parameters?

Sure! Value parameters pass a copy of the variable's value to the method, meaning changes made to the parameter inside the method do not affect the original variable. Reference parameters, on the other hand, pass a reference to the actual variable, allowing the method to modify the original variable.

What about varargs in Java?

Varargs, or variable-length arguments, allow you to pass a variable number of arguments to a method. You can define a method with a varargs parameter by using an ellipsis (...) after the parameter type.

Can you give me an example of a method using varargs?

Certainly! 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.