Java: Enterprise-Grade Application Development

Java is a class-based, object-oriented programming language designed for portability — "write once, run anywhere." It powers enterprise applications, Android apps, large-scale distributed systems, and scientific computing. Java's robust ecosystem, strong typing, and mature tooling make it ideal for mission-critical applications.

• Enterprise King: The most used language in enterprise IT
• Android: Primary language for Android development
• Mature Ecosystem: Spring, Maven, Gradle, IntelliJ IDEA
• Stability: Backward-compatible, well-maintained platform
• Job Market: Consistently among the top 3 most demanded languages

• Enterprise Developers: Build robust business applications
• Android Developers: Create mobile applications
• Backend Developers: Build scalable microservices with Spring
• Students: Java is the most taught language at universities

• Java fundamentals and OOP
• Collections framework
• Java Streams and lambdas
• Spring Boot framework
• Microservices architecture
• JPA and database access
• Maven and Gradle
• Unit testing with JUnit

1. Basics: Syntax, types, OOP concepts
2. Core: Collections, exceptions, I/O
3. Modern Java: Streams, lambdas, modules
4. Spring Boot: Web applications and REST APIs
5. Data: JPA, Spring Data, databases
6. Advanced: Microservices, Docker, cloud deployment

• Java Developer: €45,000 – €78,000/year
• Spring Boot Developer: €50,000 – €85,000/year
• Java Architect: €70,000 – €120,000/year
• Android Developer: €42,000 – €75,000/year