Quiz: QZ-20251027-55924

Quiz Details

QZ-20251027-55924

Topics:

Java Basics

Difficulty: Level 1 - Very Easy

Questions: 10

Generated: October 27, 2025 at 10:38 AM

Generated by: Guest User

Instructions: Select an answer for each question and click "Check Answer" to see if you're correct. Then view the explanation to learn more!

1 What is the correct way to declare a variable in Java?

A) int:number;

B) number:int;

C) number int;

D) int number;

Correct Answer: D
Explanation: In Java, variables are declared using a type followed by the variable name, e.g., 'int number;'.

2 Which of the following is a valid Java data type?

A) int

B) num

C) float64

D) integer

Correct Answer: A
Explanation: In Java, 'int' is a primitive data type used to declare integer variables.

3 How do you create a comment in Java?

A) /* This is a comment */

B) # This is a comment

C) // This is a comment

D) <-- This is a comment -->

Correct Answer: C
Explanation: In Java, single-line comments are created using '//' before the comment text.

4 What keyword is used to define a class in Java?

A) type

B) class

C) define

D) object

Correct Answer: B
Explanation: The 'class' keyword is used to declare a class in Java.

5 Which of the following is used to print text to the console in Java?

A) echo();

B) console.log();

C) print();

D) System.out.println();

Correct Answer: D
Explanation: In Java, 'System.out.println();' is used to print text to the console.

6 What is the default value of an int variable in Java?

A) undefined

B) 0

C) 1

D) null

Correct Answer: B
Explanation: The default value of an int variable in Java is 0.

7 Which symbol is used for the logical AND operator in Java?

A) ||

B) &

C) |

D) &&

Correct Answer: D
Explanation: In Java, '&&' is the logical AND operator used to combine two boolean expressions.

8 What does JVM stand for in Java?

A) Java Virtual Machine

B) Java Visual Machine

C) Java Verification Machine

D) Java Variable Machine

Correct Answer: A
Explanation: JVM stands for Java Virtual Machine, which executes Java bytecode.

9 Which method is the entry point of a Java application?

A) main()

B) execute()

C) run()

D) start()

Correct Answer: A
Explanation: The 'main()' method is the entry point of any Java application.

10 What is used to handle exceptions in Java?

A) if-else

B) handle

C) try-catch

D) check

Correct Answer: C
Explanation: In Java, the 'try-catch' block is used to handle exceptions.

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