Java Knowledge Test to Assess Jr. Java Developer

Candidates Assessed


Organisations Served


Java Knowledge Test is the best tech screening assessment to evaluate Java skills of candidates. This pre-employment Junior Java developer interview test evaluates candidates’ knowledge of Java coding, Java 8 and OOPs concepts. The Java Developer test is useful for hiring job-fit candidates for roles such as Junior Java Developer, Java Programmer and Java Application Developer. This pre-hire Java knowledge test has helped our customers reduce their hiring costs and time-to-hire by 40%

Junior Java Developer Test

About Java Knowledge Test to Assess Jr. Java Developer

Java knowledge test helps recruiters & hiring managers to assess the programming skills of a junior developer. Java developer test is designed & validated by experienced subject matter experts (SME) to assess & hire a junior Java programmer as per the industry standards. 
Why use iMocha’s Java knowledge test? 
Java Developer test helps employers in many ways, including hiring a job-fit candidate within a short period, taking unbiased employee performance appraisal decisions and reducing hassle in mass recruitment. Reduce candidate filtration time by 85 % with our Java developer test.

Are you a jobseeker looking to sharpen your skills?

Test Summary

Junior Java developer test helps to screen the candidates who possess traits as follows:  

  • Excellent knowledge of Core Java 8 and its concepts 

  • Strong experience and knowledge of OOPs Concepts 

  • Good knowledge of Java coding 

 Assessing candidates with a junior Java developer interview test is secure and reliable. You can use our role-based access control feature to restrict system access based on the roles of individual users within the recruiting team. Features like window violation and webcam proctoring help detect cheating during the test. 
Junior Java developer test may contain MCQs (Multiple Choice Questions), MAQs (Multiple Answer Questions), Fill in the Blanks, Whiteboard Questions, Audio / Video Questions, AI-LogicBox, Coding Simulators, True or False Questions, etc.

Test Duration: 60 minutes

No. of Questions: 22

Level of Expertise: Mid

Useful for hiring

  • Entry Level Java Developer
  • Junior Java Developer
  • Java Application Developers ( 1-2 yrs of experience)
  • Java Junior Software Programmers ( 1-2 yrs of experience)

Topics Covered

Core Java 8

The Junior Java Developer test quantifies the basic concept of Java programming language.

OOPs Concepts

The Java Developer test evaluates candidate’s way of writing computer programs using “objects” to stand for data and method.

Java Coding

In this Junior Java Developer interview test you can assess the candidate’s ability to create complete applications using Java coding.

Sample Questions

Choose from our 100,000+ question library or add your own questions to make powerful custom tests

Question types:

Multiple Option


Lambda and Streams



Q 1. Determine the output of the given code snippet implemented in a Java 8 application.

import java.util.HashMap;
import java.util.Map;
import java.util.
public class Demo {
    public static void main(String[] args) {
        Map < String,
        Integer > map = new HashMap < >();
        map.put("A", 1);
        map.put("B", 2);
        map.put("C", 3);
        map.put("D", 4);
Compilation error

Question types:

Multiple Option


OOPs Fundamentals



Q 2. You are asked to analyze the object-oriented programming approach. On detailed analysis, you find that the object-oriented programming approach has extremely poor modular properties concerning a feature B.

Identify B in the given context.
Class Extension and modification
Class Encapsulation
Data Abstraction
Object Reuse

Sample Report

View Full Report . . .

Skill wise performance report by iMocha

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You can customize this test by

Setting difficulty level of test      

Choose easy, medium or hard questions from our skill libraries to assess candidates of different experience levels.                       

Combining multiple skills into one test

Add multiple skills in a single test to create an effective assessment. Assess multiple skills together.                                              

Adding your own questions to the test

Add, edit or bulk upload your own coding questions, MCQ, whiteboarding questions & more.                       

Requesting a tailor-made test                  

Get a tailored assessment created with the help of our subject matter experts to ensure effective screening.

Trusted By

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“Siemens needed an employee review metric that was based on pure data, making it simpler for the hiring managers to evaluate their team. At the same time, we wanted the employees to be able to show case their domain knowledge and skills without the fear of any biases affecting their review process.”

Ajay Garg, Associate Manager, Siemens

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Frequently Asked Questions

What is Junior Java Developer?

Java is a multiplatform coding language that is used by programmers to design few implementations through its English-based commands. The first version of Java coding language was introduced in the year 1995 by James Gosling. Junior Java Developer’s role in Java is responsible for Java coding, SQL, design, database, web automations, etc. They work on both front-end and back-end codes to build an application.

What are the Java skills recruiter should look for while hiring a junior Java developer?

Jr. Java Developer skills that you should learn as a coder are:

Technical Skills:

  • Core Java 8
  • JavaScript
  • J2EE Framework
  • JVM and Applets
  • JSP pages
  • Servlets
  • JSON
  • Object Oriented Analysis and Design
  • Test-driven development

Soft Skills:

  • Interpersonal Skills
  • Professionalism
  • Problem Solving Skills
  • Understanding Standards
  • Time management
  • Boundary Setting

Why use iMocha’s Java Knowledge Test- Junior Level?

iMocha's junior Java developer test is designed to assess the java skills of entry level candidates for the post of junior Java Developer and enables tech recruiters/hiring managers to hire faster. Java Knowledge test – Junior is an assessment which includes coding questions that will help recruiters to:

  • Assess coding skills of Java Developer with ease
  • Reduce time-to-hire up to 50%
  • Reduce cost-per-hire
  • Take data driven hiring decisions with detailed and comparative candidate test performance reports.

What are few interview questions that recruiter/hiring manager should ask to Junior Java developer?

Here are few interview questions that you can ask to Java developers & predict their technical proficiency:

  • What are the main features of Java?
  • Is Java a platform-independent language?
  • What is a class in Java?
  • What is method overloading in Java?
  • What is Method Overriding in Java?
  • What is Encapsulation Java?
  • What is Inheritance in Java?
  • Does Java support Multiple Inheritance?
  • What is an abstract class in Java?
  • State the difference between an abstract class and the interface?

How do you assess Junior Java Developer skills?

iMocha’s Java knowledge test contains questions on Java programming concepts to assess and hire junior Java programmers. The Java knowledge test helps tech recruiters find the best potential junior developer for your organization.

Tech recruiters/hiring managers can utilize features like coding simulators, LogicBox questions, Live coding interviews to assess Java skills of the developers. CodeReplay feature helps reviewer to replay screen capture of line-by-line code written by candidate. While, coding simulators comes with several candidate friendly features like default code stubs, intellisense, multiple test cases, so that candidates can focus more on algorithm to solve coding challenges. Hiring managers can use live coding interview to conduct coding assessments real time.

How do you conduct technical skills assessment?

You can conduct remote technical skills assessments with 4 easy steps with iMocha:

  • Select from 1000+ technical skills tests or Job role-based assessments from iMocha’s skill library. Ensure test integrity by adding cheating prevention measures like image, audio, video proctoring, and window lock, etc.
  • Invite candidates through an email by sharing assessment link
  • Get comprehensive and shareable reports upon completion of the online technical assessment
  • Identify right candidates for further interviews