learn-java - dksingh

Java Course

Complete Enterprise Java Mastery

MODULE 1

Java Fundamentals

JVM • JDK • Setup

History & features
JVM JRE JDK
Execution flow
Bytecode
Platform independence
Java editions
Installing JDK & IDE
Compilation & run

MODULE 2

Java Syntax & Basics

Variables • Types

Keywords
Variables
Literals
Type casting
Operators
Input/output

MODULE 3

Control Flow

if • switch

if else
switch
Ternary
Pattern switch

MODULE 4

Loops

for • while

for while do
Nested
break continue
Labels
for-each

MODULE 5

Arrays

1D • 2D

1D 2D
Jagged
Operations
Sorting searching

MODULE 6

Methods

Overload

Syntax
Parameters
Return
Overloading
Recursion

MODULE 7

OOP Core

Classes

Classes
Constructors
this
Encapsulation
Inheritance
Polymorphism

MODULE 8

Advanced OOP

Interfaces

Overriding
Dynamic binding
super
Abstract
Interfaces

MODULE 9

Packages

Access

Packages
Import
Modifiers
API design

MODULE 10

Exceptions

try

try catch
Checked
throw
Custom

MODULE 11

Strings & Wrappers

Immutable

String internals
Builder Buffer
Wrapper
Autobox

MODULE 12

Collections

List Map

List Set Map
ArrayList
HashMap
Tree
Iterators

MODULE 13

Generics

Types

Generic classes
Methods
Wildcards
Type erasure

MODULE 14

Multithreading

Concurrency

Threads
Runnable
Sync
Locks
Executors

MODULE 15

File I/O

Streams

File
Streams
Buffered
NIO
Serialization

MODULE 16

Networking

Sockets

TCP UDP
Sockets
HTTP
Client-server

MODULE 17

JDBC

DB

Connections
Statements
ResultSet
Transactions

MODULE 18

Testing

JUnit

Debugging
Log4j
JUnit
Mockito

MODULE 19

Functional Java

Streams

Lambda
Streams
Optional
Collectors

MODULE 20

Memory

GC

Heap stack
GC
Leaks
Profiling

MODULE 21

Design Patterns

OOP

Singleton
Factory
Builder
Observer
MVC

MODULE 22

Java Web

Spring

Servlet JSP
Spring Boot
REST
Security

MODULE 23

Enterprise Java

Microservices

Microservices
Messaging
Cloud
Distributed

MODULE 24

Build & DevOps

Maven

Maven
Gradle
Docker
CI/CD

MODULE 25

Advanced Java

JVM

Reflection
Annotations
ClassLoader
JVM internals

MODULE 26

Big Data

Hadoop

Hadoop
Spark
Streaming

MODULE 27

Android

Apps

Activities
Layouts
RecyclerView
SQLite

MODULE 28

Projects

Real apps

Calculator
Library system
REST backend
Microservice

MODULE 29

Career Tracks

Roles

Java Backend Dev
Enterprise Engineer
Android Dev
Big Data Engineer