Welcome to the Data Types,Variables and Arrays MCQs Page

Dive deep into the fascinating world of Data Types,Variables and Arrays with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Data Types,Variables and Arrays, a crucial aspect of Java Programming. In this section, you will encounter a diverse range of MCQs that cover various aspects of Data Types,Variables and Arrays, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Java Programming.

Check out the MCQs below to embark on an enriching journey through Data Types,Variables and Arrays. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Java Programming.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Data Types,Variables and Arrays. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Data Types,Variables and Arrays MCQs | Page 25 of 32

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Q241.

A character literal in Java is enclosed within a pair of ___?

Square brackets

Double Quotes

Single Quotes

Exclamations

Discuss

Answer: (c).Single Quotes

Q242.

Which version of Java started offering unsigned int and unsigned long to represent very long numbers?

JDK 5

JDK 6

JDK 7

JDK 8

Discuss

Answer: (d).JDK 8

Q243.

Choose a correct statement about Java literal types.

Decimal literal uses Base 10 number system.

Binary literal uses Base 2 number system.

Octal literal uses Base 8 number system.

All of the above

Discuss

Answer: (d).All of the above

Q244.

A String literal in Java is surrounded by a pair of _____?

Braces

Single Quotes

Double Quotes

Exclamations

Discuss

Answer: (c).Double Quotes

Q245.

Which among the following is not a primitive data type in Java?

char

String

byte

short

Discuss

Answer: (b).String

Q246.

Which version of Java introduced Hexadecimal floating point numbers?

JDK 5

JDK 6

JDK 7

JDK 8

Discuss

Answer: (c).JDK 7

Q247.

What are the two floating point notations in Java language?

Exponential e or E (10ᵃ)

Exponential p or P (2ᵃ)

both a and b

None of the above

Discuss

Answer: (c).both a and b

Q248.

Choose the correct implementation of floating point literals in the exponential form in Java.

float a = 12.0e2f; //1200.0

float a = 100.0e-2f; // 1.0

float a = 123.456e-21f;
//1.23456E-19

All of the above

Discuss

Answer: (d).All of the above

Q249.

Choose the correct usage of boolean literal in the options below.

boolean b= false;

boolean b= 2<4;
//2<4 is true;

if(true)
{ System.out.println("HELLO"); }

All of the above

Discuss

Answer: (d).All of the above

Q250.

What is the output of this Java snippet?

int a = 0b111;
System.out.println(a);

111

Compiler error

Discuss

Answer: (b).7

Page 25 of 32

Welcome to the Data Types,Variables and Arrays MCQs Page

Data Types,Variables and Arrays MCQs | Page 25 of 32

Explore more Topics under Java Programming

Language Fundamentals

Operators and Control Statements

Classes and Methods

Inheritance

String Handling

java lang and java io

Serialization and Networking

java util

Exception Handling in Java

Multithreading

IO and Applets

Event Handling

Interfaces and Packages

Session Management,JSP and Servlet

Miscellaneous Topics in Java

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