Are you just starting out with Java programming? Our Java Basic Quiz is designed to help you test your understanding of fundamental concepts like variables, data types, loops, and classes. Ideal for beginners, this quiz is a great way to practice basic coding skills and build a strong foundation in Java.

Why Take This Quiz?

Test your basic Java knowledge
Learn by practicing beginner-level questions
Build a strong foundation for object-oriented programming

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Java (Basic)

Take our Java Basic Quiz to test your foundational Java knowledge. Perfect for beginners learning about variables, loops, and classes. Start now!

Max Time : 10 Min.

The number of attempts remaining is 5

Think about bounds checking

1 / 15

Which exception is thrown when an array is accessed with an illegal index?

1) ArithmeticException

2) NullPointerException

3) ClassCastException

4) ArrayIndexOutOfBoundsException

Think about floating-point numbers

2 / 15

Which data type is used for decimal values in Java?

1) boolean

2) double

3) int

4) char

Think about the most open access level

3 / 15

Which access modifier makes a member visible to all classes?

1) public

2) default

3) private

4) protected

Think about parsing values

4 / 15

Which method is used to convert a string to an integer?

1) parse()

2) valueOf()

3) toInt()

4) Integer.parseInt()

Think about how to access instance variables

5 / 15

Which keyword is used to refer to the current object in Java?

1) object

2) self

3) super

4) this

Think about extending functionality

6 / 15

Which keyword is used to inherit a class in Java?

1) inherits

2) implements

3) extends

4) abstract

Think about making a class unextendable

7 / 15

Which keyword is used to prevent inheritance in Java?

1) private

2) final

3) const

4) static

Think about equality checks

8 / 15

Which method is used to compare two strings in Java?

1) compareTo()

2) equals()

3) ==

4) equalsIgnoreCase()

Think about combining strings

9 / 15

Which operator is used for concatenating strings in Java?

1) *

2) +

3) &

4) %

Think about implementing functionality

10 / 15

Which keyword is used to inherit interfaces in Java?

1) implements

2) extends

3) inherits

4) abstract

Think about the starting point

11 / 15

Which method is the entry point of a Java program?

1) init()

2) start()

3) constructor()

4) main()

Think about post-condition checks

12 / 15

Which loop is guaranteed to execute at least once?

1) do-while

2) foreach

3) for

4) while

Think about commonly used classes

13 / 15

Which package is imported by default in every Java program?

1) java.io

2) java.lang

3) java.util

4) java.net

Think about collections and arrays

14 / 15

Which loop is known as an enhanced for loop?

1) for

2) do-while

3) while

4) for-each

Think about threading basics

15 / 15

Which method is used to start a thread execution?

1) execute()

2) start()

3) run()

4) init()

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Java Quiz (Basic)

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