Method Overloading: A Comprehensive Guide for Object-Oriented Programming

Question 1

Which statement accurately describes a limitation of method overloading?

Accepted Answer

Methods must have the same number of parameters.

Answer

Methods can have different return types.

Answer

Methods can have different parameter orders.

Answer

Methods can only have parameters of the same type.

Question 2

Which of the following is a valid method definition for overloading?

Accepted Answer

public void print(int x, int y) {}

Answer

public void print(x, y) {}

Answer

public print(int x, int y) {}

Answer

public int print(int x, int y) {}

Question 3

What is the result when a class has two overloaded methods with the same parameter types but different return types?

Accepted Answer

Compiler error.

Answer

Runtime error.

Answer

Methods are overloaded successfully.

Answer

Methods are overridden.

Question 4

Which is NOT a valid use case for method overloading in Java?

Accepted Answer

Improving code aesthetics.

Answer

Performing similar operations on different data types.

Answer

Providing multiple options for method invocation.

Answer

Overriding a method in a subclass.

Question 5

Which of the following is NOT a restriction on method overloading in Java?

Accepted Answer

Methods must have different return types.

Answer

Methods must have the same name.

Answer

Methods must have different numbers of parameters.

Answer

Methods must have different parameter types.

Question 6

Which access modifier is typically used in Java for method overloading?

Accepted Answer

public

Answer

private

Answer

protected

Answer

static

Question 7

True or False: Method overloading in Java allows methods to have the same name and different return types.

Accepted Answer

False

Answer

True

Question 8

What is the process in Java known as when selecting the correct overloaded method called?

Accepted Answer

Method resolution

Answer

Method binding

Answer

Method invocation

Answer

Method overloading

Question 9

Which of the following is NOT a scenario where method overloading would be useful in Java?

Accepted Answer

Overriding methods in a subclass

Answer

Performing different operations on different data types

Answer

Providing default values for optional parameters

Answer

Creating a hierarchy of methods for a specific task

Question 10

In object-oriented programming, method overloading primarily aligns with which principle?

Accepted Answer

Code flexibility and reusability

Answer

Reduced code readability

Answer

Encapsulation violation

Answer

Promotion of code coupling

Question 11

What is a primary benefit of method overloading?

Accepted Answer

Enhances code flexibility and reusability

Answer

Improves performance

Answer

Reduces code complexity

Answer

Enforces data encapsulation

Question 12

What is the purpose of the @Override annotation in Java when overriding methods?

Accepted Answer

To ensure that the method is overriding an existing method in the superclass.

Answer

To improve code readability

Answer

To prevent accidental method overriding

Question 13

Consider the Java code: public class Animal { public void makeSound() { System.out.println("Animal Sound"); } } Which of the following is a valid method to override makeSound() in a subclass?

Accepted Answer

public void makeSound() { System.out.println("Dog Bark"); }

Answer

protected void makeSound() { ... }

Answer

public void makeSound(String sound) { ... }

Question 14

What is the difference between method overloading and method signature?

Accepted Answer

Method signature includes the method name and parameter types, while overloading focuses on creating multiple methods with the same name but different parameters.

Answer

Method signature is a subset of method overloading

Question 15

Which of the following is NOT a benefit of method overloading?

Accepted Answer

Increased code complexity

Answer

Enhanced code flexibility

Answer

Improved code reusability

Answer

Simplified method signatures

Question 16

What is the primary benefit of method overloading?

Accepted Answer

Enhanced code flexibility and reusability

Answer

Reduced code complexity

Answer

Improved performance

Question 17

Which of the following is NOT a rule of method overloading in Java?

Accepted Answer

Overloaded methods must have different return types

Answer

Overloaded methods must have the same method name

Answer

Overloaded methods can have different parameter types

Question 18

What is the primary benefit of using method overloading?

Accepted Answer

Improved code reusability and flexibility by allowing the same method name to handle different input types.

Answer

Increased program execution speed.