Java Programming
Language

Object-Oriented Programming (OOP)

Platform Independence

Simplicity and Familiarity

Robustness and Security

Multithreading and Concurrency

Garbage Collection

Operators

Arithmetic Operators

Relational Operators

Logical Operators

Bitwise Operators

Assignment Operators

Control Structures

Methods and Functions

Java Memory
Management:

Garbage Collection

Memory Leaks

Weak References

Soft References

Phantom References

Strong References

Java Concurrency and Multithreading:

Github Repos

E-commerce-project-springBoot

onlinebookstore

Java-Projects-Collections

java-best-practices

Top 50 Repositories

Java Virtual
Machine (JVM)

Java Compiler (javac)

Java Virtual Machine (JVM)

Java Runtime Environment (JRE)

Java Class Libraries

Java Debugger (jdb)

Java Documentation Generator (javadoc)

Java Runtime Environment (JRE)

Classes and
Objects

Class Declaration and Instantiation

Instance Variables and Methods

Constructors and Initialization Blocks

Static Variables and Methods

this and super Keywords

Nested and Inner Classes

Inheritance

Polymorphism

Encapsulation

Java Internationali-
zation and Localiza-
tion:

Locale

ResourceBundle

MessageFormat

NumberFormat

DateFormat

  1. Java Enterprise Development:

  2. Java Performance Optimization:

Java Syntax and
Semantics

Keywords and Identifiers

Literals and Comments

Expressions and Statements

Packages and Imports

Naming Conventions

Data Types

Variables and Constants

Functional
Programming:

Lambda Expressions

Method References

Streams API

Optional Class

Functional Interfaces

  1. Java 8 Date and Time API:

  2. Java Modularization (Java 9+):

Java Reflection:

Class Reflection

Method Reflection

Field Reflection

Constructor Reflection

Dynamic Method Invocation

Annotation Processing

Java Security: