Welcome to the java util MCQs Page

Dive deep into the fascinating world of java util with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of java util, a crucial aspect of Java Programming. In this section, you will encounter a diverse range of MCQs that cover various aspects of java util, 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 java util. 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 java util. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

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Q121.

What is the range of numbers returned by Math.random() method?

-1.0 to 1.0

-1 to 1

0 to 100

0.0 to 1.0

Discuss

Answer: (d).0.0 to 1.0

Q122.

How many bits are used for generating random numbers?

Discuss

Answer: (c).48

Q123.

What would be the output of following code snippet?

int a = random.nextInt(15) + 1;

Random number between 1 to 15, including 1 and 15

Random number between 1 to 15, excluding 15

Random number between 1 to 15, excluding 1

Random number between 1 to 15, excluding 1 and 15

Discuss

Answer: (a).Random number between 1 to 15, including 1 and 15

Q124.

What would be the output of following code snippet?

int a = random.nextInt(7) + 4;

Random number between 4 to 7, including 4 and 7

Random number between 4 to 7, excluding 4 and 7

Random number between 4 to 10, excluding 4 and 10

Random number between 4 to 10, including 4 and 10

Discuss

Answer: (d).Random number between 4 to 10, including 4 and 10

Q125.

Math.random() guarantees uniqueness?

True

False

May be

Can't say

Discuss

Answer: (b).False

Q126.

What is the signature of Math.random() method?

public static double random()

public void double random()

public static int random()

public void int random()

Discuss

Answer: (a).public static double random()

Q127.

Which of these class produce objects with respect to geographical locations?

TimeZone

Locale

Date

SimpleTimeZone

Discuss

Answer: (b).Locale

Q128.

Which of these methods is not a Locale class?

INDIA

KOREA

Discuss

Answer: (c).INDIA

Q129.

Which of these class can generate pseudorandom numbers?

Locale

Rand

Random

None of the mentioned

Discuss

Answer: (c).Random

Q130.

Which of these method of Locale class can be used to obtain country of operation?

getCountry()

whichCountry()

DisplayCountry()

getDisplayCountry()

Discuss

Answer: (d).getDisplayCountry()

Page 13 of 18

Welcome to the java util MCQs Page

java util MCQs | Page 13 of 18

Explore more Topics under Java Programming

Language Fundamentals

Data Types,Variables and Arrays

Operators and Control Statements

Classes and Methods

Inheritance

String Handling

java lang and java io

Serialization and Networking

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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