• ISO Certified

  • AI-Powered

Master Core Java & Build Real-World Applications

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

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15K+ Classes Completed
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97% Satisfaction Rate
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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

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Course Structure Overview

Skills Covered

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

Module 1: 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 2: 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 3: 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 4: 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 5: 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 6: 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 7: 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 8: 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 9: 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

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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.

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!

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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

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

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Highly Recommended Internship

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