Basic Java Syntax and Output Quiz

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Questions and Answers

What is the output of the first Java program?

Hello World. (correct)
Hello
World.
Hello World

What does the second Java program print?

My name is Ankit
Ankit
My name is Ankit Kumar Saha (correct)
Ankit Kumar Saha

What is the purpose of the person class in the third Java program?

To create objects with name and age attributes (correct)
To handle user input
To perform arithmetic operations
To print names and ages

What does P1.getName() return in the third Java program?

Ankit (B) Signup and view all the answers

What does the person constructor in the third Java program do?

Initializes the name and age attributes (C) Signup and view all the answers

What is the derivation of the word Polymorphism?

The derivation of the word Polymorphism is from two different Greek words- poly and morphs. “Poly” means numerous, and “Morphs” means forms. Signup and view all the answers

How can Polymorphism be performed in Java?

Polymorphism in Java can be performed via two different methods: Method Overloading and Method Overriding. Signup and view all the answers

What is Method Overloading in Java?

Method overloading is the process that can create multiple methods of the same name in the same class, and all the methods work in different ways. Signup and view all the answers

What is Method Overriding in Java?

Method overriding is the process when the subclass or a child class has the same method as declared in the parent class. Signup and view all the answers

What are the types of Polymorphism in Java mentioned in the text?

The types of Polymorphism mentioned in the text are Method Overloading and Method Overriding. Signup and view all the answers

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Study Notes

Java Programs

The output of the first Java program is not specified.
The second Java program's print output is not provided.

Person Class

The purpose of the Person class in the third Java program is not explicitly stated.

Person Class Methods

P1.getName() returns the name of the object P1.
The Person class constructor initializes objects with specific attributes.

Polymorphism

The word "Polymorphism" is derived from Greek words "poly" meaning "many" and "morph" meaning "forms".
Polymorphism in Java allows objects of different classes to respond to methods with the same name.
Method Overloading is a type of polymorphism where multiple methods with the same name can be defined, differentiated by their parameter lists.
Method Overriding is a type of polymorphism where a subclass provides a specific implementation for a method already defined in its superclass.