Java Developer

Description

A typical Java Developer syllabus covers a wide range of topics, from the basics of the language to more advanced concepts like frameworks and design patterns. Below is a general outline that can help guide your learning path or syllabus if you’re planning to study Java development:

Duration: 240 Hrs

1. Introduction to Java

• History and Features of Java
• Java Development Kit (JDK) and Java Runtime Environment (JRE)
• Java Virtual Machine (JVM)
• Setting up a Java development environment (IDE, JDK installation)
• Writing your first Java program (Hello World)

2. Core Java Concepts

• Variables, Data Types, and Operators
  • Primitive data types (int, float, double, char, boolean, etc.)
  • Variables and constants
  • Arithmetic, logical, and relational operators
• Control Statements
  • Conditional Statements (if-else, switch)
  • Loops (for, while, do-while)
• Arrays
  • Single and multi-dimensional arrays
  • Array manipulation
• Methods
  • Defining and calling methods
  • Method overloading and overriding
  • Variable-length argument lists (varargs)
• Object-Oriented Programming (OOP) Concepts
  • Classes and Objects
  • Constructors
  • Inheritance
  • Polymorphism
  • Abstraction
  • Encapsulation
  • Interfaces and Abstract Classes

3. Exception Handling

• Introduction to exceptions
• try-catch-finally block
• Types of exceptions (checked vs. unchecked)
• Throwing and creating custom exceptions
• Exception propagation

4. Collections Framework

• Lists (ArrayList, LinkedList)
• Sets (HashSet, TreeSet)
• Maps (HashMap, TreeMap, LinkedHashMap)
• Queues (PriorityQueue, LinkedList)
• Iterators and For-Each Loop
• Generics in Collections

5. Java I/O (Input/Output)

• File I/O (FileReader, FileWriter, BufferedReader, BufferedWriter)
• Serialization and Deserialization
• Streams (Byte Stream vs. Character Stream)
• NIO (New I/O) – Path, Files, FileChannel, etc.

6. Java 8 Features (and beyond)

• Lambda Expressions
• Streams API
• Functional Interfaces
• Optional Class
• Default Methods in Interfaces
• Method References

7. Multithreading and Concurrency

• Creating threads (Thread class vs Runnable interface)
• Thread synchronization
• Executor framework
• Callable and Future
• Locks (ReentrantLock, ReadWriteLock)
• Concurrency utilities (CountDownLatch, Semaphore, CyclicBarrier)

8. JDBC (Java Database Connectivity)

• Setting up a database connection
• Executing SQL queries (SELECT, INSERT, UPDATE, DELETE)
• PreparedStatement vs. Statement
• ResultSet and its usage
• Transactions in JDBC
• Connection Pooling (e.g., HikariCP, Apache DBCP)

9. Java Design Patterns

• Creational Patterns (Singleton, Factory, Builder)
• Structural Patterns (Adapter, Composite, Proxy)
• Behavioral Patterns (Observer, Strategy, Command)

10. Java Frameworks (Spring & Hibernate)

• Spring Framework
  • Inversion of Control (IoC) / Dependency Injection (DI)
  • Spring Boot for Microservices
  • Spring MVC for web development
  • Spring Data and JPA
  • Spring Security
• Hibernate
  • Object-Relational Mapping (ORM)
  • Hibernate Mapping (One-to-One, One-to-Many, Many-to-Many)
  • Hibernate Query Language (HQL)
  • Criteria API

11. Web Development (Optional but Highly Recommended)

• Servlets and JSP (Java Server Pages)
• Web APIs (RESTful services with Spring Boot)
• JSON parsing and working with REST
• Java Web frameworks (Spring MVC)
• Client-Server architecture

12. Unit Testing and Test-Driven Development (TDD)

• Introduction to JUnit
• Writing unit tests in JUnit
• Mocking with Mockito
• TestNG
• Test-Driven Development (TDD) approach

13. Version Control Systems

• Git basics (commit, push, pull, branches)
• GitHub for repositories and collaboration
• Merging, resolving conflicts

14. Build Tools

• Introduction to Maven
• Dependency Management in Maven
• Creating and running a Maven project
• Gradle basics

15. Basic Security Concepts

• Secure coding practices (e.g., SQL injection prevention)
• Encryption and Decryption
• Authentication and Authorization

16. Advanced Java Topics (Optional)

• Java Memory Model
• Garbage Collection and Memory Management
• Performance Tuning and Profiling
• Java Native Interface (JNI)
• JavaFX (for GUI applications)

17. Best Practices and Code Quality

• Writing clean and maintainable code
• Code reviews and pair programming
• Refactoring techniques
• Logging and debugging strategies

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• Practice Platforms:
  • LeetCode, HackerRank, and CodeSignal for Java coding challenges.
  • GitHub to store and showcase projects.

This syllabus provides a structured path, but depending on your focus (backend, web development, microservices, etc.), you can adjust the emphasis on certain sections (like frameworks or databases).