Question

What is the process of defining more than one method in a class differentiated by parameters?

(a) Function overriding

(b) Function overloading

(c) Function doubling

(d) None of the mentioned

The question was posed to me in unit test.

I'd like to ask this question from Methods Taking Parameters in division Classes and Methods of Java

Answer 1

The correct answer is:

(b) Function overloading

Explanation: Function overloading in Java refers to the ability to define multiple methods with the same name in a class, but with different parameter lists. The methods must differ in the number or types of parameters (or both), which allows the compiler to distinguish between the different methods based on the arguments passed when calling them.

For example:

java

Copy code

class Example { void display(int num) { System.out.println("Number: " + num); } void display(String str) { System.out.println("String: " + str); } }

In this case, the method display is overloaded: one version takes an int, and another takes a String.

• Function overriding (option a) refers to defining a method in a subclass with the same name and parameters as a method in its superclass, allowing the subclass to provide its own implementation.