ISO Certified
AI-Powered

Master Core Java & Build Real-World Applications

Learn OOP, Collections, Multithreading, JDBC & MySQL with hands-on projects.

Apply for Internship

201 reviews4.2

10k+

Successfully Trained

Apply for Internship

Name*

Email*

Phone*

Courses*

Java Programming With Grras

Master the future of enterprise software engineering with our comprehensive Java Development and Backend Architecture course. Gain in-depth expertise in Object-Oriented Programming (OOP), Advanced Data Structures, Multi-threading, and Robust System Design. Learn industry-standard tools including Java 21, Spring Boot, Hibernate (ORM), and Maven to build secure, scalable, and high-performance applications.

15K+ Classes Completed

97% Satisfaction Rate

102K+ Students Community

Earn an ISO-Certified Training Certificate

Upon successful completion of the Core Java Programming Internship, learners will be awarded an industry-recognized certificate from GRRAS Solutions Pvt. Ltd.

During this program, participants gain hands-on experience in Java fundamentals, control statements, and object-oriented programming concepts including classes, inheritance, polymorphism, and abstraction. Learners also develop practical skills in arrays, strings, and the Java Collections Framework for efficient data handling.

The certification comes with lifetime validity and is LinkedIn shareable, allowing learners to showcase their achievements professionally. It is a verifiable certificate with a unique credential ID, ensuring authenticity and recognition by recruiters and organizations. Additionally, it serves as proof of hands-on project experience and industry-relevant Java development skills, helping learners stand out in software development roles

Apply for Internship

Course Structure Overview

Skills Covered

Java

JDBC

SQL

The Core Java Programming Internship is designed to build a strong foundation in Java development and object-oriented programming concepts required for real-world software applications. This program focuses on developing practical coding skills, logical thinking, and structured problem solving.

The course begins with Java fundamentals, including program structure, data types, operators, and control statements, helping learners establish a solid programming base. As the program progresses, students gain in-depth knowledge of Object-Oriented Programming (OOP), arrays, strings, and the Java Collections Framework for efficient data handling.

Learners will also explore advanced topics such as exception handling, multithreading, file handling, and Java I/O, enabling them to build robust and scalable applications. The curriculum further includes networking basics and Java Swing for developing desktop-based applications.

Additionally, participants gain hands-on experience in database programming using MySQL and JDBC, allowing them to connect Java applications with databases and perform real-world data operations.

With a strong focus on coding practice, debugging, and real-world projects, this internship prepares learners for software development roles and technical interviews in the Java ecosystem.

Detailed Curriculum

Java Programming

Module 01 - Java Fundamentals

Installing Java JDK and Development Environment
Understanding JDK, JRE, and JVM Architecture
Installing and Configuring IDE (IntelliJ / Eclipse / VS Code)
Running the First Hello World Program
Understanding Basic Structure of a Java Program
Understanding Compilation and Execution Process
Understanding Bytecode and JVM Execution
Learn Java Syntax, Variables, and Data Types
Input and Output in Java using Scanner
Operators and Expressions

Module 02 - Control Statements in Java

Decision Statements using if, if-else, nested if
Switch Case Statements
Looping in Java
- For Loop
- While Loop
- Do While Loop
Break and Continue Statements
Using Flags and Conditions in Loops
Practical Programming Problems using Loops

Module 03 - Object Oriented Programming

Introduction to OOP Concepts
Classes and Objects
Encapsulation
Inheritance
Polymorphism
Abstraction
Constructors
Method Overloading
Method Overriding
Access Modifiers
Static Keyword
Real-world Examples of OOP

Module 04 - Arrays and Strings in Java

Introduction to Arrays
Single Dimensional Arrays
Multi Dimensional Arrays
Array Traversal and Operations
Searching and Sorting Basics
Introduction to Strings
String Pool Concept
Immutable Strings
String Manipulation
String Methods
StringBuilder and StringBuffer
Practice Problems

Module 05 - Java Collections Framework

Introduction to Collections
List Interface
- ArrayList
- LinkedList
Set Interface
- HashSet
- TreeSet
Map Interface
- HashMap
- LinkedHashMap
- TreeMap
Collection Iteration
- Iterators
- ForEach Loop
Practical Problems using Collections

Module 06 - Exception Handling

Introduction to Exceptions
Checked vs Unchecked Exceptions
Try, Catch, Finally Blocks
Multiple Catch Blocks
Throw and Throws Keywords
Creating Custom Exceptions
Best Practices for Exception Handling
Practical Programming Examples

Module 07 - Multithreading in Java

Introduction to Multithreading
Thread Lifecycle
Creating Threads
- Using Thread Class
- Using Runnable Interface
Thread Synchronization
Thread Communication
Practical Examples of Multithreading

Module 08 - Java File Handling and I/O

Introduction to Java Input and Output
File Class
Reading and Writing Files
BufferedReader and BufferedWriter
FileInputStream and FileOutputStream
Object Serialization and Deserialization
Working with Data Streams
Practical Programs using File Handling

Module 09 - Networking and Socket Programming

Introduction to Computer Networking
Understanding Client-Server Architecture
TCP vs UDP Protocols
Introduction to Java Networking API
Socket Programming Basics
Creating Client Server Applications
Data Communication between Client and Server
Building Chat Applications using Sockets
Practice Programs

Module 10 - Java Swing (Desktop GUI Development)

Introduction to GUI Programming in Java
Swing Architecture and Components
Working with JFrame and JPanel
Working with Labels, Buttons, and Text Fields
Working with CheckBoxes, RadioButtons, ComboBox
Working with Tables and Lists
Understanding Layout Managers
- BorderLayout
- FlowLayout
- GridLayout
Event Handling in Swing
- ActionListener
- MouseListener
- KeyListener
Creating Forms and Interactive Applications
Practice Applications

Module 11 - Database Programming with MySQL

Introduction to Databases
Understanding Relational Databases
Introduction to MySQL Database
Installing MySQL Server and MySQL Workbench
Understanding Database Concepts
- Tables
- Rows and Columns
- Primary Key
- Foreign Key
Creating Databases and Tables
Basic SQL Commands
- CREATE, INSERT, UPDATE, DELETE, SELECT
Filtering Data using WHERE Clause
Sorting Data using ORDER BY
Grouping Data using GROUP BY
Database Relationships
Practical SQL Queries

Module 12: JDBC (Java Database Connectivity)

Introduction to JDBC
Understanding JDBC Architecture
Types of JDBC Drivers
Connecting Java Application with MySQL Database
Steps to Connect Java with Database
Loading JDBC Driver
Establishing Database Connection
Executing SQL Queries using
- Statement
- PreparedStatement
Handling ResultSet
Performing Database Operations
- Insert Data from Java Application
- Update Database Records
- Delete Records from Database
- Fetching and Displaying Database Data
Handling Exceptions in JDBC
Building Console-based Database Applications

Module 13 - Debugging and Best Practices

Code Formatting and Standards
Debugging Java Programs
Exception Debugging
Performance Optimization
Writing Clean Code
Understanding Code Maintainability

Get ahead in your career by learning Top AI Tools Title

ChatGPT & Gemini to explore datasets, analyse data, generate code, and develop models
Debugcode.ai to solve any coding problem within seconds

From Training to Placement A Roadmap to Success

Navigate your professional journey with a comprehensive guide that transforms learning into opportunity. Discover proven strategies to build skills, gain experience, and secure your ideal position in today’s competitive job market.

Building Strong Foundation

Expert Training sessions

Focus on industry-relevant skills

Hands on projects & Assignments

Real-world projects to implement learned concepts.

Performance Tracking

Weekly tests to assess progress
Sharpening Interview Readiness

Mock Interviews

Mock sessions with real-time feedback from experts

Expert Sessions

Host industry experts for advanced technical guidance

Skill Refinement Tasks

Focus on problem-solving, critical thinking, and domain expertise
Communication & Aptitude Skill Development

Effective Communication & Presentation Skills

Through interactive classes, students enhance both verbal and non-verbal communication, while also learning to present their ideas clearly, confidently, and effectively.

Aptitude & Logical Reasoning Training

Enhances students' problem-solving, analytical thinking, and numerical ability-preparing them for competitive exams and placement tests.
Resume building masterclasses

Step by step guidance

Help students structure professional, impactful resumes
Bridging the Gap

Industry networking

* Partner with top companies for hiring pipelines
* Conduct webinars and sessions with recruiters

Placement coordination

* Connect candidates to aligned opportunities
* Organize hiring events and recruitment drives
Advance interview boot camp

Stress Management Techniques

Equip students to handle high-pressure interview situations

Scenario-Based Training

Prepare students for various interview formats, including case studies, coding rounds, and group discussions
Personalized 1:1 guidance

Individual Sessions

* Address specific weaknesses and barriers to success.
* Develop personalized improvement plans

Expert Training sessions

Focus on industry-relevant skills

Hands on projects & Assignments

Real-world projects to implement learned concepts.

Performance Tracking

Weekly tests to assess progress

Mock Interviews

Mock sessions with real-time feedback from experts

Expert Sessions

Host industry experts for advanced technical guidance

Skill Refinement Tasks

Focus on problem-solving, critical thinking, and domain expertise

Effective Communication & Presentation Skills

Through interactive classes, students enhance both verbal and non-verbal communication, while also learning to present their ideas clearly, confidently, and effectively.

Aptitude & Logical Reasoning Training

Enhances students' problem-solving, analytical thinking, and numerical ability-preparing them for competitive exams and placement tests.

Step by step guidance

Help students structure professional, impactful resumes

Industry networking

* Partner with top companies for hiring pipelines
* Conduct webinars and sessions with recruiters

Placement coordination

* Connect candidates to aligned opportunities
* Organize hiring events and recruitment drives

Stress Management Techniques

Equip students to handle high-pressure interview situations

Scenario-Based Training

Prepare students for various interview formats, including case studies, coding rounds, and group discussions

Individual Sessions

* Address specific weaknesses and barriers to success.
* Develop personalized improvement plans

Our mission revolves around our learners

Promising 100% #CareerSuccess!

Download Placement Report

Career Point University

PIET

Geetanjali University

JECRC University

ICFAI University

GIT college

Techno

S S jain subodh college

Jaipur National uni.

ARYA College

Sangam University

Poornima University

Jaipur National uni.

JECRC University #8

JECRC University #9

JECRC University #10

JECRC University #11

JECRC University #12

SKIT College

MIT

Vivekananda Global.

SPSU University

JECRC University #2

JECRC University #3

JECRC University #4

JECRC University #5

JECRC University #6

Empowering Learners Through Strong Alliances

At Grras Solutions, we collaborate with 45+ academic institutions and industry leaders to ensure our programs align with real-world demands. By integrating professional training, certifications, and hands-on experiences, we empower students to excel in today’s competitive job market.

45+

Partners

1000+ Students

Impacted Annually

Visuals of collaborations (trainings, hackathons, certifications)

600+ Hiring Partners Across Industries

Our extensive network of hiring partners spans various industries, offering diverse opportunities to kickstart your career.

Our Proven Track Record Shows that we Walk the Talk

Gajendra Singh

Data Analyst

Jaipur

The technical training in Data Analytics provided by the institute was comprehensive and well-structured. The curriculum covered essential concepts such as data cleaning, analysis, and...

Aditi Naruka

Cloud ops Engineer

Jaipur

Aditi Naruka has successfully completed the 4-month Devops and Cloud Computing program and secured a placement.

Raghav Bahad

Data Analyst

Jaipur

Raghav Bahad has successfully completed the 4-month Data Analyst program and secured a placement.

Suhaib Illyas

Python developer

Jaipur

Suhaib Illyas has successfully completed the 3-month PYTHON program and secured a placement.

Gourav Khatri

Data Analyst

Jaipur

Gourav Khatri has successfully completed the 4-month Data Analyst program and secured a placement.

Shamrez Khan

MIS Executive

Jaipur

Shamrez Khan has successfully completed the 4-month Data Analyst program and secured a placement.

Arbaj Khan

Graphic Designer

Jaipur

Arbaj khan has successfully completed the 4-month Ui Ux design program and secured a placement.

Benefits of Interning with Us

Emphasize the advantages of joining the internship.

Industry-relevant skills

Gain cutting-edge skills aligned with current market demands, making you industry-ready.

Practical experience

Build an impressive resume/portfolio with hands-on projects and professional-grade outputs.

Real-time problem-solving exposure

Tackle real-world challenges, enhancing critical thinking and technical expertise.

Career opportunities via Grras

Unlock placement opportunities through Grras' extensive professional network and connections.

Resume writing & tech events

Participate in industry-specific competitions and events to expand knowledge and showcase talent.

Mentorship from experts

Learn directly from seasoned professionals, receiving guidance and feedback to boost your career trajectory.

Grras vs Other Internships

See why we are the preferred choice for aspiring professionals.

Features	Video Courses	Bootcamps	Grras
Practical, Real-World Experience
Project-Based Learning
Live, Expert-Led Sessions
Professional Portfolio Development
Industry Partnerships / Externship
Career Coaching
Direct Job Referrals

Take the next step in your career! Connect with our counsellors by filling out this form.

Speak to a counsellor

Highly Recommended Internship

Gain hands-on experience with industry-focused internships. Work on real projects, learn from experts, and build job-ready skills for your IT career.

View All

Foundation Track (15 Days)
C / C++ Programming with DSA

Gain hands-on experience in Systems Programming, Software Development, and Memory Management through...

C Programming
C++ Programming
DSA

★ ★ ★ ★ 4.3/5 (302)

Foundation Track (15 Days)
Python Programming

Think Logic, Write Python, Build the Future!

OOPS
Python

★ ★ ★ ★ 4.7/5 (548)

Skill Builder Program (45 Days)
Agentic AI Summer Internship

The Agentic AI Internship Program is designed to help learners build intelligent...

Gen Ai
Machine Learning
Math Algorithm
NumPy
More +3

★ ★ ★ ★ 4.3/5 (127)

Skill Builder Program (45 Days)
Cloud Computing with AWS & Linux

Build, Deploy, Automate, and Scale Cloud Infrastructure

CI/CD Automation
Cloud
Devops
Linux
More +1

★ ★ ★ ★ 4.5/5 (198)

Skill Builder Program (45 Days)
Data Analytics

Master the complete Data Analytics toolkit in just 60 hours with hands-on...

Data Analytics
Data Modeling
Data Visualization
Excel
More +7

★ ★ ★ ★ 4.6/5 (325)

Foundation Track (15 Days)
Frontend Development with Figma

The Frontend Web Development program is designed to help learners build modern,...

AI
Bootstrap
Css
Eclipse
More +9

★ ★ ★ ★ 4.6/5 (231)

Skill Builder Program (45 Days)
Python With Django

The Python with Django Web Development Summer Internship Program is designed to...

Django
Html
My SQL
Python
More +2

★ ★ ★ ★ 4.5/5 ()

Frequently Asked Questions

This internship is a structured, hands-on program that helps you master Core Java programming — from fundamentals to building real-world applications — with expert mentorship, live projects, and career support.

The program is ideal for students, freshers, and working professionals who want to build strong Java skills and become job-ready developers.

No prior coding experience is necessary. This internship starts from the basics and gradually progresses to advanced concepts.

The Core Java internship is available in both online and offline modes. You can choose the format that suits your learning preference.

The internship covers Java fundamentals, OOPs concepts, exception handling, multithreading, collections, file handling, JDBC, GitHub collaboration, and more. You will also work on live projects and build a portfolio.

Yes, project-based learning is a core part of the program. You’ll work on real-world Java projects to strengthen your practical skills.

You’ll attend live instructor-led sessions for better interaction, along with access to recordings for revision.

Doubts are addressed instantly during live sessions, and you can also connect with mentors 1-on-1 during mentorship hours or via chat support.

Yes. You will receive an ISO-Certified Training Certificate and a Verifiable Internship Letter, which can be added to your resume or LinkedIn profile.

Absolutely. Our certification is ISO-recognized and carries value in academic and corporate sectors.

Java developers, Full stack developer, software developer, Junior Software developer etc.

You, including mock interview, resume building, portfolio guidance and LinkedIn Optimization.

Absolutely, Including IT, finance, healthcare, e-commerce and research actively seek skilled java Developer.

The internship duration is typically 45 to 60 days, depending on the batch schedule.

Our internship program is priced affordably. Please visit the registration page or contact our team for the latest fee structure and available offers.

Yes, you can book your seat with a small token amount (usually ₹1000), which is included in the total fee.

You can register directly through our official website or contact our counselors via WhatsApp or call. A payment link is also available for easy booking.

Yes. Git and GitHub are part of the curriculum, where you’ll learn version control, collaboration, and working on real projects.

We guide you step-by-step to install Java, Eclipse/IntelliJ, MySQL, Git, and other required tools during the initial sessions.

You will receive certificates, career support, and placement assistance. You’ll also have a strong portfolio of Java projects to showcase during interviews.

Yes. After mastering Core Java, you can enroll in our Java Full Stack or Spring Boot & Hibernate advanced programs.

Yes. GRRAS Solutions offers in-person classroom training at their Jaipur centre along with live online sessions. You can choose the mode that fits your schedule and learning style.

Yes. Weekend batches are specifically designed for working professionals in Jaipur. They follow the same full curriculum with extended session durations to fit around weekday work schedules.

All sessions are recorded. You will get access to class recordings, notes, and backup sessions so you never fall behind, whether you attend in-person in Jaipur or online.

Yes. The course starts from HTML and CSS fundamentals and gradually builds up to advanced backend development with Node.js. Beginners receive additional mentorship support throughout.

Yes. All recorded sessions, project codes, notes, and learning resources remain accessible even after you complete the course.