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Home / Courses / Java / Complete Java & OOP Programming Masterclass
Java Beginner Free Course

Complete Java & OOP Programming Masterclass

Learn core Java from scratch: JVM architecture, primitive types, control flow, OOP classes, Collections, and Exception handling.

24 hours 61 Lessons Certificate (Pass Score: 75%)
Start Course Free

What's Included

  • Full step-by-step interactive reader
  • Practice exercises with solutions
  • Quizzes & Knowledge Assessments
  • Verifiable Digital PDF Certificate
A

Alex Morgan (Senior Engineer)

Lead Instructor

Curriculum & Chapters

Java Introduction, JDK, JVM & Hello World
15 mins Free
Java Variables, Data Types & Operators
14 mins Free
Java Control Flow: Conditional & Loops
16 mins Free
Object-Oriented Programming: Classes & Inheritance
22 mins Free
Java Collections Framework & Exception Handling
20 mins Free
Java Platform Overview (JDK, JRE, JVM & Bytecode)
15 mins Free
Your First Java Program: Class Structure & main() Method
15 mins Free
Java Primitive Data Types (byte, short, int, long, float, double, boolean, char)
15 mins Free
Variables, Constants (final), Scope & Type Casting
15 mins Free
Java Arithmetic, Relational, Logical & Bitwise Operators
15 mins Free
Java String Class, Immutability & String Pool
15 mins Free
StringBuilder & StringBuffer for High-Performance Text Concatenation
15 mins Free
Java Streams API & Functional Programming
20 mins Free
Java Concurrency & CompletableFuture Async Pipelines
22 mins Free
Java Generics, Wildcards (<? extends T>) & Type Erasure
18 mins Free
JVM Garbage Collection (G1GC, ZGC) & Memory Tuning
20 mins Free
Spring Boot REST Architecture & Dependency Injection
24 mins Free
Conditional Branching: if, else if, else & Ternary Operator
15 mins Free
Modern Switch Expressions & Pattern Matching in Java 21
15 mins Free
Java Loops: for, while, do-while & Enhanced for-each Loop
15 mins Free
Loop Control Statements: break, continue & Labeled Loops
15 mins Free
Single-Dimensional & Multi-Dimensional Arrays
15 mins Free
Java Methods, Parameter Passing (Pass-by-Value) & Return Types
15 mins Free
Method Overloading & Variable Arguments (varargs ...)
15 mins Free
Classes, Objects & Heap/Stack Memory Allocation
15 mins Free
Constructors, Constructor Chaining & this Keyword
15 mins Free
Encapsulation, Access Modifiers (public, protected, default, private)
15 mins Free
Inheritance with extends & super Keyword
15 mins Free
Polymorphism: Method Overriding & @Override Annotation
15 mins Free
Abstract Classes vs Interfaces in Java
15 mins Free
Default, Static & Private Methods in Java Interfaces
15 mins Free
Java Records (Java 16+) for Immutable Data Transfer
15 mins Free
Exception Hierarchy: Checked vs Unchecked Runtime Exceptions
15 mins Free
try, catch, finally & Modern try-with-resources Statement
15 mins Free
Custom User-Defined Exception Classes
15 mins Free
Java Generics: Generic Classes, Methods & Type Bounds
15 mins Free
Wildcards (<? extends T>, <? super T>) & PECS Principle
15 mins Free
List Interface: ArrayList vs LinkedList vs Vector
15 mins Free
Set Interface: HashSet, LinkedHashSet & TreeSet Sorting
15 mins Free
Map Interface: HashMap, LinkedHashMap, ConcurrentHashMap & TreeMap
15 mins Free
Lambda Expressions & @FunctionalInterface (Predicate, Function, Consumer, Supplier)
15 mins Free
Method References (Class::method) & Constructor References
15 mins Free
Streams API: Stream Creation, filter(), map(), flatMap()
15 mins Free
Streams Reduction & Aggregations: reduce(), count(), min(), max()
15 mins Free
Collectors API: toList(), toMap(), groupingBy(), partitioningBy()
15 mins Free
Parallel Streams & Threading Considerations
15 mins Free
Java Optional<T> Class & Avoiding NullPointerException
15 mins Free
Thread Lifecycle, Creating Threads (Thread vs Runnable)
15 mins Free
Synchronization, Locks & Race Condition Prevention
15 mins Free
Executor Framework & Thread Pools (Executors.newFixedThreadPool)
15 mins Free
Callable<T> & Future<T> for Asynchronous Results
15 mins Free
CompletableFuture: Non-blocking Chaining & Exception Pipelines
15 mins Free
Virtual Threads in Java 21 (Project Loom)
15 mins Free
Scoped Values & Structured Concurrency in Java 21
15 mins Free
Java File I/O & Modern java.nio.file (Files & Path)
15 mins Free
Object Serialization & deserialization with transient Keyword
15 mins Free
Java Reflection API & Dynamic Annotations Processing
15 mins Free
JVM Garbage Collection (G1GC, ZGC) & Performance Flags
15 mins Free
JDBC Database Connectivity & PreparedStatement
15 mins Free
Unit Testing with JUnit 5 & Mockito Framework
15 mins Free
Spring Boot REST APIs, Dependency Injection & JPA Entities
15 mins Free

Assessments & Quizzes

Java Core Fundamentals Assessment

2 Questions • Passing Score: 70%

Required for Certificate