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Free Core Java Concepts

FREE


Instructor: Nikhil Karale



Language: English, Hindi

Course Description

Java is one of the most powerful, versatile, and widely used programming languages in the world. The Core Java Training Program is designed to help learners build a strong foundation in object-oriented programming and application development using Java. This course introduces participants to the core syntax, features, and programming concepts of Java, enabling them to write efficient, secure, and scalable applications. Through a blend of theory and hands-on coding exercises, learners will gain the skills needed to develop robust software solutions, preparing them for advanced Java technologies, frameworks, and real-world projects. This course provides an in-depth understanding of Java fundamentals, including data types, operators, control structures, classes, objects, inheritance, polymorphism, exception handling, and file handling. Participants will also explore advanced concepts such as multithreading, collections framework, generics, and JDBC (Java Database Connectivity) to build dynamic and interactive applications. The program focuses on practical implementation and problem-solving through coding labs and mini-projects, helping learners to develop a professional coding mindset.

Requirements :

  • PC
  • Internet Connection

What You Will Learn in this Course:

After successful completion of this course, participants will be able to:

  • Understand Java syntax, data types, and object-oriented programming principles.
  • Write, compile, and debug Java programs.
  • Implement real-world logic using classes, objects, and inheritance.
  • Manage data using collections and file handling techniques.
  • Connect Java applications to databases using JDBC.
  • Develop console-based and simple GUI-based applications.
  • Learners will get exposure to below topics.
            i. In-depth Core Java Concepts 

             ii. Java Development Kit - JDK 

            iii. Exception Handling in Java

            iv. Type casting in java 

           v.  Array in java 

            vi.  Working with File System in Java 

           vii.  Writing File using File Output Stream and FileWritter 

          viii.  Access Specifiers in Java

Syllabus

What do we offer

Lifetime Access

Get life long access to all the courses with unlimited learning.

Structured learning

Our curriculum is designed by experts to make sure you get the best learning experience.

Community & Networking

Interact and network with like-minded folks from various backgrounds in exclusive chat groups.

Learn with the best

Stuck on something? Discuss it with your peers and the instructors in the inbuilt chat groups.

Practice tests

With the quizzes and live tests practice what you learned, and track your class performance.

Get certified

Flaunt your skills with course certificates. You can showcase the certificates on LinkedIn with a click.

FAQs

 Career prospects in Core Java are strong, as Java remains a widely used language in enterprise software, fintech, backend systems, and Android development. You can build careers as a Java Developer, Backend Developer, API Developer, Software Engineer, or Full-Stack Developer. Java skills also open pathways to Spring Boot, Microservices, Cloud, Big Data, and DevOps roles, making it a stable and long-term career option.

You can learn more about Core Java by studying its fundamentals (OOP concepts, data types, control structures, collections, exceptions, multithreading) through online courses, books, and tutorials. Practice regularly by building small projects, solving coding challenges, and using platforms like LeetCode, HackerRank, and Codecademy. You should also not miss practical based upSkill Campus Internship. Strengthen your understanding using the official Java documentation, and explore frameworks like Spring Boot once you are comfortable with the basics.

To prepare for Core Java job interviews, focus on both concepts and practical skills:

๐Ÿ”‘ 1. Master Core Java Fundamentals

  • OOP (Inheritance, Polymorphism, Encapsulation, Abstraction)
  • Collections Framework
  •  Exception Handling
  •  Multithreading & Concurrency.
  •  File Handling & I/O Streams
  • JVM architecture, JDK vs JRE, Garbage Collection

๐Ÿ”ง 2. Practice Coding Problems

  •  Use platforms like LeetCode, HackerRank, CodeStudio
  •  Focus on arrays, strings, recursion, sorting, searching, and OOP-based problems

๐Ÿงช 3. Build Mini Projects

  • Library management system
  • Banking app simulation
  • CRUD console app using Collections

Projects help you demonstrate practical application. Take Internship from upSkill Campus.

๐Ÿš€ 4. Learn Important Tools & Framework Basics

  • Git/GitHub
  •  Maven/Gradle
  •  Basics of JDBC + simple database connections
  •  Intro to Spring Boot (highly recommended for interviews)

๐Ÿ’ฌ 5. Prepare for Common Interview Questions

  • Conceptual questions (OOP, JVM, Collections)
  • Coding rounds
  •  Scenario-based problem solving
  •  Basic SQL and database knowledge

๐Ÿ“š 6. Mock Interviews & Resume Prep

  • Practice explaining your projects clearly.
  •  Highlight Java skills, GitHub links, and certifications

Entry: โ‚น3.5โ€“7 LPA, Mid-level: โ‚น8โ€“18 LPA, Senior: โ‚น20โ€“35 LPA, Architects: โ‚น35โ€“60 LPA+. Growth increases with Spring Boot, Microservices, and Cloud skills.

The salary growth in Core Java is strong because Java is still one of the most in-demand backend and enterprise technologies.

  ๐Ÿ’ฐ Salary Range in India

  • Entry-level (0โ€“2 years): โ‚น3.5 โ€“ โ‚น7 LPA
  • Mid-level (3โ€“7 years): โ‚น8 โ€“ โ‚น18 LPA
  • Senior Developers (7โ€“12 years): โ‚น20 โ€“ โ‚น35 LPA
  • Architects / Leads (12+ years): โ‚น35 โ€“ โ‚น60 LPA+
๐Ÿ“ˆ Growth Trend
  • Java roles typically see 10โ€“30% yearly salary hike, depending on performance and company.
  • Adding skills like Spring Boot, Microservices, SQL/NoSQL, Cloud (AWS/Azure/GCP) can increase salaries significantly.
  • Java + Cloud + Microservices engineers often earn 40โ€“80% higher than basic Core Java roles.

 Career prospects in Core Java are strong, as Java remains a widely used language in enterprise software, fintech, backend systems, and Android development. You can build careers as a Java Developer, Backend Developer, API Developer, Software Engineer, or Full-Stack Developer. Java skills also open pathways to Spring Boot, Microservices, Cloud, Big Data, and DevOps roles, making it a stable and long-term career option.

To prepare for Core Java job interviews, focus on both concepts and practical skills

  ๐Ÿ”‘ 1. Master Core Java Fundamentals 

  • OOP (Inheritance, Polymorphism, Encapsulation, Abstraction) 
  • Collections Framework
  •  Exception Handling.
  •  Multithreading & Concurrency
  • File Handling & I/O Streams
  • JVM architecture, JDK vs JRE, Garbage Collection
   ๐Ÿ”ง 2. Practice Coding Problems 

  • Use platforms like LeetCode ,  HackerRank , CodeStudio 
  • Focus on arrays, strings, recursion, sorting, searching, and OOP-based problems 
๐Ÿงช 3. Build Mini Projects 

  •  Library management system
  • Banking app simulation.
  •  CRUD console app using Collections Projects help you demonstrate practical application. Take Internship from upSkill Campus. 

  ๐Ÿš€ 4. Learn Important Tools & Framework Basics 

  • Git/GitHub ยท Maven/Gradle
  • Basics of JDBC + simple database connections
  • Intro to Spring Boot (highly recommended for interviews)

  ๐Ÿ’ฌ 5. Prepare for Common Interview Questions 

  • Conceptual questions (OOP, JVM, Collections)
  •  Coding rounds ยท Scenario-based problem solving
  •  Basic SQL and database knowledge 

  ๐Ÿ“š 6. Mock Interviews & Resume Prep 

  • Practice explaining your projects clearly 
  •  Highlight Java skills, GitHub links, and certifications

SN Company Website URL
1 Tata Consultancy Services (TCS) https://www.tcs.com/
2 Infosys Limited https://www.infosys.com/
3 Wipro Limited https://www.wipro.com/
4 HCL Technologies https://www.hcltech.com/
5 Tech Mahindra https://www.techmahindra.com/
6 Mphasis https://www.mphasis.com/
7 LTI Mindtree https://www.ltimindtree.com/
8 Zensar Technologies https://www.zensar.com/
9 Capgemini India https://www.capgemini.com/in-en/
10 Cognizant Technology Solutions (India) https://www.cognizant.com/
11 IBM India https://www.ibm.com/in-en
12 Accenture India https://www.accenture.com/in-en
13 Persistent Systems https://www.persistent.com/
14 Oracle India https://www.oracle.com/in/
15 SAP Labs India https://www.sap.com/india/
16 Ericsson India https://www.ericsson.com/en/locations/india/
17 Dell Technologies India https://www.dell.com/en-in
18 Capita India (digital services) https://www.capita.com/locations/india
19 Kyndryl India https://www.kyndryl.com/company/locations/india
20 DXC Technology India https://www.dxc.technology/in