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Which topics must be covered while learning Java?
Which topics must be covered while learning Java?
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jameskn
1 post
Jul 12, 2024
11:30 PM
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To learn Java effectively, it's essential to cover a comprehensive set of topics that span from basic to advanced concepts. Here's a detailed list of must-cover topics:
Basics of Java
Introduction to Java
History and features of Java
Setting up the environment (JDK, JRE, JVM)
Writing and running your first Java program
Basic Syntax
Java program structure
Data types (primitive and non-primitive)
Variables and constants
Operators (arithmetic, relational, logical, bitwise)
Control structures (if, else, switch, for, while, do-while)
Comments
Object-Oriented Programming (OOP)
Classes and Objects
Defining classes
Creating objects
Instance variables and methods
Constructors
Default and parameterized constructors
Constructor overloading
Inheritance
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Superclass and subclass
Method overriding
Using the super keyword
Polymorphism
Method overloading
Method overriding
Dynamic method dispatch
Encapsulation
Access modifiers (public, private, protected)
Getters and setters
Abstraction
Abstract classes and methods
Interfaces
Core Java Concepts
Arrays
Declaring, initializing, and accessing arrays
Multidimensional arrays
String Handling
String class and its methods
StringBuilder and StringBuffer
Exception Handling
Types of exceptions
Try-catch-finally blocks
Throwing exceptions
Custom exceptions
Collections Framework
List, Set, Map, Queue interfaces
ArrayList, LinkedList, HashSet, TreeSet, HashMap, TreeMap, PriorityQueue
Iterators and enhanced for loop
File I/O
File class
Byte and character streams
Buffered streams
Reading and writing files
Serialization
Generics
Generic classes and methods
Bounded types
Wildcards
Advanced Java Concepts
Multithreading and Concurrency
Creating and running threads
Synchronization
Inter-thread communication
Concurrency utilities (Executors, Concurrent Collections, Atomic variables)
Networking
Networking basics
Sockets and server sockets
URL and HttpURLConnection classes
Lambda Expressions and Stream API
Functional interfaces
Lambda expressions
Stream API for bulk data operations
Annotations and Reflection
Built-in annotations (@Override, @Deprecated, @SuppressWarnings)
Custom annotations
Using reflection to inspect classes, methods, and fields
Java Development Tools and Best Practices
Integrated Development Environments (IDEs)
Using IDEs like IntelliJ IDEA, Eclipse, or NetBeans
Debugging and refactoring tools
Build Tools
Maven or Gradle basics
Managing dependencies
Building and running projects
Version Control
Using Git for version control
Basic Git commands and workflows
Testing
Writing unit tests with JUnit
Mocking and testing frameworks (Mockito)
Optional (Specialized Topics)
Graphical User Interface (GUI) Programming
Swing
JavaFX
Java EE (Enterprise Edition)
Servlets, JSP (JavaServer Pages), and JSF (JavaServer Faces)
EJB (Enterprise JavaBeans) and JMS (Java Message Service)
Spring Framework
Spring Core
Spring MVC
Spring Boot
Spring Data and Spring Security
Web Services
SOAP and RESTful web services
JAX-RS and JAX-WS
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