Core Java Online Test – Java 8

Candidates Assessed


Organisations Served


Our Core Java Online Test is ideal for technical recruiters & hiring managers to hire job-fit candidates for roles such as Core Java Developer and Core Java Programmer. This pre-employment test evaluates candidates’ knowledge on Core Java 8, Exception handling, Oops, Lambda function and JDBC. The pre-hire test can reduce time-to-hire by 45% by enabling employers identify top talent early in the recruitment process. 

Core Java Online Test

About Core Java Online Test – Java 8

Our Core Java Online Test for experienced candidates helps technical recruiters and hiring managers to effortlessly assess technical knowledge of senior candidates in Core Java. Core Java test for interview is designed & validated by experienced Java experts to assess & hire Java developers as per the industry standards. 
Why use iMocha’s core Java online test for interview? 
Core Java online test for interview helps employers in many ways including hiring a job-fit candidates within a short period, taking unbiased employee performance appraisal decisions and reducing hassles in mass recruitment. This AI-powered skills assessment reduces technical screening time by 80%. By filtering out irrelevant candidates, this test improves interview-to-selection ratio by 62%.  

Are you a jobseeker looking to sharpen your skills?

Test Summary

Online aptitude test for Java helps to screen the candidates who possess traits as follows:  

  • Extensive experience in implementing object-oriented concepts & knowledge 
  • Ability to use advanced class features like polymorphism, class overriding, and interfacing to develop efficient and reusable code 
  • Strong knowledge of Java 8 Lambda, Streams, Optional and other Functional interfaces 

Employers can use intelligent & powerful Test Insights that will help to identify job fit candidates more accurately with score distribution & section analysis features. Assessing candidates with a core Java assessment 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. 
Java 8 online test is designed considering EEOC guidelines, it will help you assess & hire diverse talent without any bias.  
Core Java aptitude test may contain MCQs (Multiple Choice Questions), MAQs (Multiple Answer Questions), Fill in the Blanks, Whiteboard Questions, Audio / Video Questions, LogicBox (AI-based Pseudo-Coding Platform), Coding Simulators, True or False Questions, etc.

Test Duration: 20 minutes

No. of Questions: 10

Level of Expertise: Expert

Useful for hiring

  • Core Java Developer
  • Core Java Programmer
  • Java Developer with 1-3 yrs of experience

Topics Covered

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Core Java 8

It includes a huge upgrade to the Java programming model and a coordinated evolution of the JVM, Java language, and libraries

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Java oops

 OOPs in Java organize a program around various objects and well-defined interfaces. The OOPs Concepts in Java are abstraction, encapsulation, inheritance, and polymorphism.

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String data handling

 In Java, string is basically an object that represents sequence of char values. An array of characters works same as Java string

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Lambda Function

 Java lambda expressions are Java's first step into functional programming. A Java lambda expression is thus a function which can be created without belonging to any class

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 JDBC makes it possible to do establish a connection with a data source, send queries and update statements, and process the results

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Streamed API

 The Stream API is used to process collections of objects

Sample Questions

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

Question types:

Multiple Option


Java 8 - Generics



Q 1. You have extracted an element from a list and cast it to a string A. What is likely to be the result of this operation?
An unchecked error might be thrown
A ClassCastException is thrown
A ClassErasureException is thrown
An UnIdentifiedTypeCast error is thrown

Sample Report

View Full Report . . .

Skill wise performance report by iMocha

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You can customize this test by

difficulty level
Setting difficulty level of test      

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

multiple skills
Combining multiple skills into one test

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

adding own skill
Adding your own questions to the test

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

tailor made test
Requesting a tailor-made test                  

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

Trusted By

Megan Akhras, Co-founder & director, JExcelle, Canada
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“We are a tutoring agency, wherein the crux of our business lies in the quality of the tutors we hire. Hence it is imperative that our hiring is top notch. We were impressed by the caliber, depth, and breadth of the assessments provided by iMocha. With iMocha, we have found a great assessment tool for our hiring requirements.”

Megan Akhras, Co-founder & director, J'Excelle, Canada

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