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Learn Basics – Module 1 Lesson 2- Quiz

Last updated: October 17, 2025

Written by: komal

Learn Java Basics
Lesson 2: Variables and Data Types
Learn Basics – Module 1 Lesson 2- Quiz

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Question 1 of 5

1. Question

What is a variable in Java?

A fixed constant value that never changes
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A reserved keyword used to declare data types
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A named storage location in memory that holds a value
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A compiler directive for optimizing performance
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Question 2 of 5

2. Question

Which of the following statements about primitive types is correct?

A String is a primitive type in Java
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A boolean can hold any Unicode character
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An int is the default type for fractional numbers
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A char stores exactly one character, such as a letter or symbol
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Question 3 of 5

3. Question

What happens if we try to access a local variable before it’s initialized?

The variable is automatically assigned a default value
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The compiler throws an error, and the code won’t compile
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The JVM assigns a random value from memory
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The program runs but outputs null
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Question 4 of 5

4. Question

What is the assignment operator in Java, and what does it do?

“=” stores the value on the right into the variable on the left
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“==” stores two values in memory simultaneously
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“:” declares both type and name of a variable
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“->” assigns values in functional-style code
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Question 5 of 5

5. Question

According to Java naming conventions, which of the following is a good variable name?

1stPlace
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user name
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playerScore
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player_score
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