Soopro Pathshala

Test your Java programming knowledge with these multiple-choice questions. This quiz covers Java basics, variables, operators, conditions, loops, arrays, OOP, exception handling, collections, and file handling.

Total Questions: 20
Marks: 1 mark per question
Maximum Score: 20
Select one answer for each question and click Submit Quiz to see your result.

Question 1: Java Basics

Which keyword is used to create a class in Java?

function class define object

Question 2: Variables

Which data type is commonly used to store a whole number in Java?

int boolean char String

Question 3: Output

What is the output of this code?

System.out.println(10 + 20);

1020 30 10 Compilation error

Question 4: Operators

Which operator checks whether two primitive values are equal?

= == != &&

Question 5: Conditional Statements

Which statement executes code when a condition is true?

if import package break

Question 6: Loops

How many times does this loop execute?

for (int i = 1; i <= 3; i++) {
    System.out.println(i);
}

2 times 3 times 4 times 0 times

Question 7: Arrays

What is the index of the first element in a Java array?

0 1 -1 2

Question 8: Strings

Which method returns the number of characters in a String?

size() length() count() capacity()

Question 9: Methods

Which keyword sends a value back from a method?

break continue return static

Question 10: Object-Oriented Programming

Which keyword is used to create an object in Java?

class new this void

Question 11: Constructors

What is the name of a constructor in Java?

Any name chosen by the programmer The same name as its class Always main Always return

Question 12: Inheritance

Which keyword is used to inherit a class in Java?

implements extends inherits super

Question 13: Encapsulation

Which access modifier restricts direct access to a member to its declaring class?

public protected private static

Question 14: Interfaces

Which keyword declares that a class implements an interface?

extends implements interface import

Question 15: Exception Handling

Which block is commonly used to handle an exception after a try block?

switch for catch class

Question 16: Collections

Which Java collection allows duplicate elements and maintains their sequence?

ArrayList HashSet TreeSet HashMap

Question 17: Maps

Which collection stores data as key-value pairs?

ArrayList LinkedList HashMap Stack

Question 18: File Handling

Which package contains many Java file I/O classes such as File and FileReader?

java.net java.io java.sql java.awt

Question 19: Multithreading

Which method contains the task executed by a typical Java Thread?

main() startTask() run() stopTask()

Question 20: JDBC

What is JDBC primarily used for?

Designing web page styles Connecting Java applications to databases Creating Java packages automatically Drawing images only

Your Quiz Result

Java Tutorial

Java Programming Quiz