Certified Core Java Developer

How It Works

  1. 1. Select Certification & Register
  2. 2. Receive Online e-Learning Access (LMS)
  3. 3. Take exam online anywhere, anytime
  4. 4. Get certified & Increase Employability

Test Details

  • Duration: 60 minutes
  • No. of questions: 50
  • Maximum marks: 50, Passing marks: 25 (50%).
  • There is NO negative marking in this module.
  • Online exam.

Benefits of Certification

  • Government Certification
  • Certification valid for life
  • Lifelong e-learning access
  • Learning Hours: 30+ hrs
  • Life Time Job Support
  • Updated Jan 2026

$59.00 /-
Download Brochure

Java remains one of the most widely used programming languages in the world, powering everything from enterprise applications and Android development to banking systems and e-commerce platforms. For any aspiring developer or working professional looking to build a credible career in software development, a strong foundation in Core Java is non-negotiable.

The Vskills Certified Core Java Developer certification validates your knowledge of Java fundamentals, object-oriented programming, data structures, exception handling, JDBC, and more. Backed by the Government and carrying lifetime validity, this certification is recognised by top IT recruiters across the country. Whether you are a fresher stepping into your first developer role or a professional looking to formalise your Java skills, this certification gives you a verifiable, career-ready credential.

Why Choose the Vskills Core Java Certification?

With hundreds of Java courses available online, what makes Vskills stand apart is the credibility and permanence of its certification. Here is why thousands of professionals choose Vskills:

  • Govt. Certified Credential — The Vskills certification is backed by the Government, giving it a level of credibility that private course certificates cannot match.
  • Lifetime Validity — Unlike most certifications that expire in 2–3 years, your Vskills certificate never expires. You earn it once and it stays on your record permanently.
  • Industry-Recognised Exam Format — The certification follows a standardised, objective-type exam format that tests real conceptual knowledge, not just course completion.
  • Affordable and Accessible — The exam can be taken online, making it accessible to candidates across India without the need to travel to a test centre.

Who Should Enroll?

This certification is designed for a wide range of candidates across experience levels:

  • Fresh graduates and engineering students who want to build a strong Java foundation and increase their employability before entering the job market.
  • Junior developers and programmers looking to validate their existing Java skills with a government-recognised credential.
  • Software testers and QA professionals who work in Java-based environments and want to strengthen their programming knowledge.
  • IT professionals transitioning into development roles who need a structured, exam-backed way to demonstrate Core Java competency.
  • Freelancers and independent developers who want to add a credible, verifiable certification to their portfolio and client-facing profiles.

No prior programming experience is mandatory, though a basic understanding of computer fundamentals and logical thinking will help candidates get the most out of the preparation material.

What You Will Learn

The Vskills Certified Core Java Developer curriculum covers all essential topics required to write, debug, and deploy Java applications confidently. The course is structured to take you from Java fundamentals all the way to advanced topics like multithreading, JDBC, and GUI programming.

Table of Contents

Basic Concepts of Java Programming

  • Introduction
  • JDK 10 Installation
  • Eclipse Installation
  • Writing Your First Java Program
  • Primitive Data Types in Java
  • Arithmetic Operators in Java
  • Logical and Bitwise Operators
  • Relational Operators in Java
  • If - Condition
  • Nested If - Condition
  • "For" Loop in Java
  • Hands-On Exercise on the "For" Loop
  • "Nested For" Loop
  • Hands-On Exercise on the "Nested For" Loop
  • "While" and "Do While" Loop in Java
  • Loop "Break" and "Continue" Statements

String Operations

  • String Basics
  • String Comparison Operations
  • String Search Operations
  • String (Cut) Slice Operations
  • String Replace Operations
  • String Conversion Operations

Object-Oriented Programming

  • Concept of Classes and Objects
  • Classes and Objects - Exercise 1
  • Methods in Java
  • Method Overloading
  • Access Specifiers in Java
  • Constructor
  • Data Encapsulation
  • Static Keyword
  • Concept of Main Method
  • Classes and Object - Exercise 2

Special Classes in Java

  • Math Class
  • StringBuilder Class
  • StringBuilder Method
  • Scanner Class
  • Random Class
  • The Universally Unique Identifier (UUID) Class

What's New in Java 10?

  • "var" Keyword
  • Concept of Garbage Collector (GC) and Java 10 Update in GC
  • Other Updates in Java 10

Inheritance and Abstraction

  • Inheritance in Java
  • Method Overriding
  • Polymorphism
  • "Super" Keyword
  • Super Class Constructor
  • Protected Access
  • Abstraction
  • Interface
  • "Final" Keyword

Arrays

  • Arrays in Java
  • Array Object
  • Modified/Enhanced "For" loop
  • Array Exercise
  • Two-Dimensional (2D) Arrays
  • Two-Dimensional (2D) Array Exercise
  • Array of OBJECT

Lists

  • Array List
  • Linked List Structure
  • Linked List
  • ArrayList Versus LinkedList
  • List Iterator

Sets and Maps

  • Hash Set
  • Linked Hash Set
  • Tree Set
  • Iterating over Sets
  • Hash Map
  • Tree Map
  • Iterating on Maps

Regular Expressions

  • Introduction to RegEx (Regular Expressions)
  • Quantifiers in RegEx (Regular Expressions)
  • Character Classes in RegEx (Regular Expressions)
  • Bracket Expressions in RegEx (Regular Expressions)
  • "OR" Operator
  • "Dot" Operator
  • Greedy and Lazy Matching
  • RegEx (Regular Expressions) Exercise 1
  • RegEx (Regular Expressions) Exercise 2
  • Regularizing Number Ranges

Exception Handling

  • What is an Exception?
  • Error Versus Exception
  • Checked and Unchecked Exceptions
  • "Throws" Declaration
  • Try and Catch Block (Exception Handling)
  • "Finally" Block

Date and Time Operations (Rev Java 8)

  • Local Date and Time
  • Customizing Date and Time
  • Future and Past Date
  • Future and Past Time
  • Date Difference
  • Time Difference
  • Date-Time Formatter

Working with Text Files (Apache Commons IO)

  • Reading a Text File Using Apache Commons IO
  • Editing a Text File Using Apache Commons IO
  • Interview Question - Sorting a Line from a Text File
  • Copying and Moving Text Files
  • Interview Question - Removing Duplicate Words from a Text File

Working with MS Excel Files (Apache POI)

  • Apache POI Setup
  • Reading Excel File Using POI
  • Read Excel Data into a 2D Array
  • Interview Question - Write Excel Using POI

Career Outcomes and Salary Scope

Core Java is one of the foundational skill sets that virtually every IT company in India looks for when hiring software developers. Holding a Vskills government-certified credential significantly strengthens your profile during job searches and internal appraisals.

Job RoleIndustryAvg. Salary (India)Experience Level
Junior Java DeveloperIT Services, Startups₹3.5 – ₹5 LPAFresher – 1 year
Java ProgrammerProduct, E-commerce, SaaS₹4 – ₹7 LPAFresher – 2 years
Backend DeveloperE-commerce, MNC, Consulting₹6 – ₹12 LPA2 – 4 years
Application DeveloperFintech, BFSI, Enterprise₹5 – ₹10 LPA1 – 4 years
Senior Java DeveloperMNC, Cloud, SaaS₹8 – ₹15 LPA4 – 7 years
Java ArchitectProduct, Unicorn Startups, Enterprise₹15 – ₹25 LPA8 – 12 years

Exam and Certification Details

DetailInformation
Exam FormatOnline — attempt from anywhere, anytime
Number of Questions50 multiple-choice questions
Duration60 minutes
Passing Score25 out of 50 (50%) — no negative marking
Certificate ValidityLifetime — no renewal required
e-Learning AccessLifetime access to LMS and future content updates
ResultInstant — available immediately after exam completion
LanguageEnglish

Companies that hire Vskills Certified Core Java Developer

Vskills certified candidates are actively sought by leading IT and technology companies across India. Top hiring organisations include Tata Consultancy Services (TCS), Infosys, Wipro, Capgemini, Accenture, Tech Mahindra, Sapient, HCL Technologies, Mphasis, and Cognizant. Startups and product companies working with Java-based backends also actively recruit candidates with verified Core Java credentials.

Core Java Developer Tutorial

http://vskills.in/certification/tutorial/information-technology/certified-core-java-developer/

Core Java Developer Sample Questions

https://www.vskills.in/certification/certified-core-java-developer-sample-questions

Core Java Developer Practice Test

https://www.vskills.in/practice/core-java

Core Java Interview Questions

https://www.vskills.in/interview-questions/programming-languages-interview-questions/core-java-interview-questions

Core Java Related Blogs

Checkout the latest online blogs on Core Java.

Core Java Jobs

Checkout the various job openings for Core Java Developers, click here..

Certified Core Java Developer – Frequently Asked Questions

Get answers about eligibility, exam pattern, career scope, validity, jobs and enrolment for Vskills Certified Core Java Developer Certification.

The exam consists of multiple-choice questions (MCQs). There is no negative marking, so candidates are encouraged to attempt all questions. The exam can be taken online from anywhere in India.
Yes. Unlike many professional certifications that require renewal every 2–3 years, the Vskills certification carries lifetime validity. You earn it once and it remains permanently on your record.
The exam is open to all — fresh graduates, working professionals, students, and career switchers. There is no mandatory educational qualification required to register.
Yes. Upon registering, candidates get access to Vskills online learning material and an e-learning module bundled with hard copy study material. Sample questions and a course brochure are also available.
Certified candidates are tagged as Vskills Certified, which increases visibility to recruiters. The govt-backed credential also adds credibility to resumes and LinkedIn profiles.
Yes. Vskills offers an exam retake option. Candidates can re-register for the exam after an unsuccessful attempt.
Core Java covers fundamental Java concepts — OOP, data types, collections, exception handling, multithreading, and JDBC. Advanced Java builds on this foundation and covers enterprise technologies like Servlets, JSP, Spring, and Hibernate. This certification focuses on Core Java.
Yes. Vskills is India's largest certification body and is backed by the Government. The certification is recognised by companies like TCS, Infosys, Capgemini, and Accenture, among others.
Yes. The certification curriculum closely aligns with the topics commonly tested in Java developer interviews — OOP concepts, exception handling, collections, multithreading, and JDBC. Preparing for the Vskills exam builds a strong conceptual foundation that directly helps candidates perform better in technical rounds at IT companies.
The preparation time varies depending on the candidate's existing programming knowledge. A fresher with basic computer fundamentals can typically be exam-ready in 4 to 6 weeks with consistent daily study. Candidates who already have some Java exposure can prepare in 2 to 3 weeks. Vskills provides structured study material, sample questions, and practice tests to help candidates prepare efficiently within their available time.
Yes. Vskills provides lifetime access to the online learning material bundled with your registration. Candidates can revisit the study content, tutorials, and sample questions at any time even after the exam is completed, making it useful as a long-term reference resource.
Yes, provided the candidate has a genuine interest in programming and logical thinking. Many candidates from non-IT backgrounds such as BCA, BSc Computer Science, or those who have completed a basic Java training programme have successfully cleared the exam. The study material is structured to be accessible without requiring a formal computer science degree.

Trusted Reviews for Vskills Certified Core Java Developer

Build expertise in Core Java fundamentals, OOP concepts, exception handling, multithreading, JDBC and collections with a govt certified lifetime credential.

4.9
★★★★★

Based on 19k+ verified learners

★★★★★

I was preparing for my first Java developer role and this certification gave me the confidence I needed. The study material covers all the important concepts clearly and the govt certification added real weight to my resume.

- Jaya Prasad, Java Developer at TCS
★★★★★

As a fresher, I was looking for a certification that recruiters would actually recognise. Vskills Core Java certification is govt certified and lifetime valid — that combination is hard to find at this price point. Thanks

- Aurbindo Ghosh, Software Trainee at Infosys
★★★★★

Good coverage of Core Java topics. The sections on multithreading and exception handling were particularly useful for my work. The sample questions helped a lot during exam preparation. Would definitely recommend!

- Amit Verma, Backend Developer at Wipro
★★★★★

The JDBC and collections modules are very well structured. Not only this, the whole curriculum is well designed, easy to register, easy to follow and get govt. certified. Thanks Vskills

- Sree Vinayak, Application Developer at Cognizant
Read More Reviews Enroll Now
 
TABLE OF CONTENT

Basic Concepts of Java Programming

  • Introduction
  • JDK 10 Installation
  • Eclipse Installation
  • Writing Your First Java Program
  • Primitive Data Types in Java
  • Arithmetic Operators in Java
  • Logical and Bitwise Operators
  • Relational Operators in Java
  • If - Condition
  • Nested If - Condition
  • "For" Loop in Java
  • Hands-On Exercise on the "For" Loop
  • "Nested For" Loop
  • Hands-On Exercise on the "Nested For" Loop
  • "While" and "Do While" Loop in Java
  • Loop "Break" and "Continue" Statements

String Operations

  • String Basics
  • String Comparison Operations
  • String Search Operations
  • String (Cut) Slice Operations
  • String Replace Operations
  • String Conversion Operations

Object-Oriented Programming

  • Concept of Classes and Objects
  • Classes and Objects - Exercise 1
  • Methods in Java
  • Method Overloading
  • Access Specifiers in Java
  • Constructor
  • Data Encapsulation
  • Static Keyword
  • Concept of Main Method
  • Classes and Object - Exercise 2

Special Classes in Java

  • Math Class
  • StringBuilder Class
  • StringBuilder Method
  • Scanner Class
  • Random Class
  • The Universally Unique Identifier (UUID) Class

What's New in Java 10?

  • "var" Keyword
  • Concept of Garbage Collector (GC) and Java 10 Update in GC
  • Other Updates in Java 10

Inheritance and Abstraction

  • Inheritance in Java
  • Method Overriding
  • Polymorphism
  • "Super" Keyword
  • Super Class Constructor
  • Protected Access
  • Abstraction
  • Interface
  • "Final" Keyword

Arrays

  • Arrays in Java
  • Array Object
  • Modified/Enhanced "For" loop
  • Array Exercise
  • Two-Dimensional (2D) Arrays
  • Two-Dimensional (2D) Array Exercise
  • Array of OBJECT

Lists

  • Array List
  • Linked List Structure
  • Linked List
  • ArrayList Versus LinkedList
  • List Iterator

Sets and Maps

  • Hash Set
  • Linked Hash Set
  • Tree Set
  • Iterating over Sets
  • Hash Map
  • Tree Map
  • Iterating on Maps

Regular Expressions

  • Introduction to RegEx (Regular Expressions)
  • Quantifiers in RegEx (Regular Expressions)
  • Character Classes in RegEx (Regular Expressions)
  • Bracket Expressions in RegEx (Regular Expressions)
  • "OR" Operator
  • "Dot" Operator
  • Greedy and Lazy Matching
  • RegEx (Regular Expressions) Exercise 1
  • RegEx (Regular Expressions) Exercise 2
  • Regularizing Number Ranges

Exception Handling

  • What is an Exception?
  • Error Versus Exception
  • Checked and Unchecked Exceptions
  • "Throws" Declaration
  • Try and Catch Block (Exception Handling)
  • "Finally" Block

Date and Time Operations (Rev Java 8)

  • Local Date and Time
  • Customizing Date and Time
  • Future and Past Date
  • Future and Past Time
  • Date Difference
  • Time Difference
  • Date-Time Formatter

Working with Text Files (Apache Commons IO)

  • Reading a Text File Using Apache Commons IO
  • Editing a Text File Using Apache Commons IO
  • Interview Question - Sorting a Line from a Text File
  • Copying and Moving Text Files
  • Interview Question - Removing Duplicate Words from a Text File

Working with MS Excel Files (Apache POI)

  • Apache POI Setup
  • Reading Excel File Using POI
  • Read Excel Data into a 2D Array
  • Interview Question - Write Excel Using POI

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