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Java Roadmap

Enterprise-grade programming language

Duration
5-7 months
Job Demand
very high
Phases
4
Views
1338

About This Roadmap

Java is one of the most popular and widely-used programming languages, powering enterprise applications, Android apps, big data tools, and web services. This roadmap covers Java fundamentals, object-oriented programming, collections framework, multithreading, Spring Boot for backend development, and the broader Java ecosystem. Java's 'write once, run anywhere' philosophy, strong typing, and extensive libraries make it ideal for large-scale applications. It's used by major companies like Google, Amazon, and Netflix. Understanding Java opens doors to backend development, Android development, big data engineering, and enterprise software development.

Prerequisites

  • Basic programming concepts
  • Logical thinking

What You'll Learn

Master Java syntax
Understand OOP
Build backend apps
Work with Spring Boot
Handle multithreading
Deploy Java apps

Complete Learning Path

6-8 weeks

1
Syntax & Basics

Variables, data types, operators, control flow

2
OOP Concepts

Classes, objects, inheritance, polymorphism

3
Collections

List, Set, Map, ArrayList, HashMap

4
Exception Handling

try-catch, throws, custom exceptions

8-10 weeks

1
Multithreading

Threads, synchronization, concurrent collections

2
Streams & Lambda

Functional programming, Stream API

3
File I/O

Reading/writing files, NIO

4
JDBC

Database connectivity, SQL operations

10-12 weeks

1
Spring Core

Dependency injection, IoC container

2
Spring Boot

Auto-configuration, REST APIs, JPA

3
Spring Data

Repositories, queries, database integration

4
Spring Security

Authentication, authorization, JWT

6-8 weeks

1
Maven/Gradle

Build tools, dependency management

2
Testing

JUnit, Mockito, integration tests

3
Deployment

Docker, cloud deployment, CI/CD

4
Best Practices

Design patterns, clean code, SOLID

Tools & Technologies

JavaSpring BootMavenGradleJUnitHibernateIntelliJ IDEA

Career Opportunities

  • Java Developer
  • Backend Developer
  • Full Stack Developer
  • Android Developer
  • Enterprise Architect

Expected Salary (India)

₹4-9 LPA (Entry)
₹9-18 LPA (Mid)
₹18-35 LPA (Senior)

Companies Hiring

GoogleAmazonOracleIBMTCSInfosysWiproAll enterprises

Ready to Start?

Follow this roadmap step-by-step and track your progress.

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