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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.

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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 24 of 32

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Q231.
Choose a correct rule for using Underscores in literals of Java language.

a.

Underscores cannot come at the end of a number or next to the last digit of a number.

b.

Underscores cannot come at the beginning of a number or before the first digit of a number.

c.

Underscores cannot come before or after a decimal point in real numbers like float and double.

d.

All of the above

Discuss
Answer: (d).All of the above
Q232.
What is the maximum number of Underscore characters that can be used in between the digits of a numeric literal in Java?

a.

8

b.

16

c.

32

d.

No Limit

Discuss
Answer: (d).No Limit
Q233.
Java uses UTF-16 Unicode format to represent characters. What is UTF?

a.

Universal Transcript Format

b.

Universal Transformation Format

c.

Universal Technology Format

d.

None of the above

Discuss
Answer: (b).Universal Transformation Format
Q234.
What is the name given to character literals in Java that start with a Back Slash character?

a.

Back Slash Sequence

b.

Slash Sequence

c.

Escape Sequence

d.

Extended Sequence

Discuss
Answer: (c).Escape Sequence
Q235.
What is the literal in Java that can be used to test whether an Object of any type is alive or not?

a.

alive

b.

liveof

c.

null

d.

0

Discuss
Answer: (c).null
Q236.
What is the commonUTF standard used on the Websites for information exchange?

a.

UTF 16

b.

UTF 8

c.

UTF 32

d.

None of the above

Discuss
Answer: (b).UTF 8
Q237.
What is the suffix used to represent a floating point number in Java?

a.

r or R

b.

f or F

c.

fl or FL

d.

None of the above

Discuss
Answer: (b).f or F
Q238.
What is the precision after decimal points offered by a float data type in Java?

a.

3 digits

b.

6 digits

c.

10 digits

d.

15 digits

Discuss
Answer: (b).6 digits
Q239.
A real number literal for floating point literal with a missing f or F suffix represents which data type?

a.

double

b.

float

c.

long

d.

int

Discuss
Answer: (a).double
Q240.
What is the suffix used to convert an int literal to long literal in Java?

a.

0l or 0L

b.

l or L

c.

i or I

d.

0x or 0X

Discuss
Answer: (b).l or L
Page 24 of 32

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