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Junior Java Developer Test
Clock
Test duration:
60
min
Notes
No. of questions:
22
Tie
Level of experience:
Entry Level

Junior Java Developer Test

The Junior Java developer test is the best tech screening assessment to evaluate the Java skills of the candidates. This junior Java developer assessment helps hire job-fit candidates in the Junior Java developer role and increases the interview-to-selection ratio by 62%.

13000
+
Candidates
Assessed
140
+
Organizations Served
Fujitsu
Paypal
Capgemini
Deloitte
Coupa
UN Logo
Vanguard
EY Logo
About

Junior Java Developer Test

The Junior Java developer test is designed and validated by experienced Subject Matter Experts (SMEs) to assess and hire a junior Java programmer as per industry standards. 

 

Why use iMocha’s junior Java developer assessment? 

 

Junior Java developer assessment helps employers in many ways, including hiring a job-fit candidate within a short period, taking unbiased employee performance appraisal decisions, and reducing candidate hiring time by 40% with our Java developer test. 

Use iMocha's assessment to hire skill fit, remove bias, and save money!
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How it works

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 understanding of OOPs Concepts  
  • Good knowledge of Java coding  

 Assessing candidates with a Java junior test online 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. 

 

This 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
No. of Questions
22
Level of Expertise
Entry Level
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
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Core Java 8

The junior Java developer test quantifies the basic concept of the Java programming language.

OOPs Concepts

Junior Java developer assessment evaluates the candidate’s way of writing computer programs using “objects” to stand for data and method.
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Java Coding

This assessment helps recruiters assess candidates' ability to create Java coding applications.
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Sample Question
Choose from our 100,000+ questions library or add your own questions to make powerful custom tests.

Question types :

Multiple Option

Topic:

Difficulty:

Hard


Q 1. You have been asked to train « Naive Bayes model for spam detection dataset

Using Python command, what wil you add in the given code at XXXX to deciore, it and train your modal for the given dataset?

import numpy os np

X= nporroyll 3. 2b[1 21 [2.21.[3,21)
Y= nporray(fi.a,a.1))

XXXX

from skinamnaive_bayas import

Gaussianna

otf = Gaussianne()

ceataie(x ¥)

from skinamnaive_bayas import

Gaussianna

otf = Gaussianne()

ceataie(x ¥)

from skinamnaive_bayas import

Gaussianna

otf = Gaussianne()

ceataie(x ¥)

from skinamnaive_bayas import

Gaussianna

otf = Gaussianne()

ceataie(x ¥)

Question types :

Multiple Option

Topic:

Machine teaming

Difficulty:

Hard


Q 1. Q2 Lets assume that you have 6 Pandas DataFrome(af) in the below tole.

Index Code Open High
0 AAPL 19877 70074
1 AAPL 19877 70074
2 AAPL 19877 70074
3 AAPL 19877 70074
4 AAPL 19877 70074

When the following commend is executed, what hoppens to the DatoFrome?

df= defiinat()
Y= nporray(fi.a,a.1))

Index Code Open High
0 AAPL 19877 70074
1 AAPL 19877 70074
2 AAPL 19877 70074
3 AAPL 19877 70074
4 AAPL 19877 70074
Index Code Open High
0 AAPL 19877 70074
1 AAPL 19877 70074
2 AAPL 19877 70074
3 AAPL 19877 70074
4 AAPL 19877 70074
it gives an error becouse of the third row which has on empty string.
None of these

Question types :

Multiple Option

Topic:

Lambda and Streams

Difficulty:

Medium

Question:

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.
function.Function;
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);
        map.values().stream().peek(System.out::print).forEach(System.out::print);
    }
}


Options

  • 12341234
  • 11223344
  • 1234
  • Compilation error
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Mobile Programming
FAQ
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Why use iMocha’s online data science test?
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How do you assess the data scientists?
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What is Junior Java Developer?
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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?
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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
  • HTML/CSS/XML
  • 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?
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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?
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Here are few interview questions that you can ask to Java developers & predict their technical proficiency:

  1. What are the main features of Java?
  2. Is Java a platform-independent language?
  3. What is a class in Java?
  4. What is method overloading in Java?
  5. What is Method Overriding in Java?
  6. What is Encapsulation Java?
  7. What is Inheritance in Java?
  8. Does Java support Multiple Inheritance?
  9. What is an abstract class in Java?
  10. State the difference between an abstract class and the interface?
How do you assess Junior Java Developer skills?
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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?
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You can conduct remote technical skills assessments with 4 easy steps with iMocha:

  1. 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.
  2. Invite candidates through an email by sharing assessment link
  3. Get comprehensive and shareable reports upon completion of the online technical assessment
  4. Identify right candidates for further interviews