Core Java Fundamentals: Syntax, OOP and Collections

What you'll learn

• Explain the JDK, JVM and bytecode, and write and run Java programs.
• Use types, strings, control flow, methods and arrays correctly.
• Design classes with encapsulation, inheritance, polymorphism and interfaces.
• Apply equals, hashCode, Comparable, generics, enums and collections.
• Handle exceptions, read and write files and work with dates.

Syllabus

Module 1: Getting Started

1. What is Java?
2. Install the JDK
3. Your First Program

Module 2: Language Basics

1. Variables & Types
2. Operators
3. Strings
4. Console Input

Module 3: String Handling Deep Dive

1. Strings: Pool, Builders & Gotchas

Module 4: Wrapper Classes & Autoboxing

1. Wrapper Classes & Autoboxing

Module 5: Control Flow

1. Conditionals
2. Loops

Module 6: Control Flow Extras

1. Switch Expressions, Ternary & Labels

Module 7: Methods & Arrays

1. Methods
2. Arrays

Module 8: Arrays Deep Dive

1. Multi-Dimensional Arrays, Arrays & Varargs

Module 9: Object-Oriented Programming

1. Classes & Objects
2. Constructors
3. Encapsulation
4. Inheritance
5. Polymorphism
6. Abstract Classes & Interfaces

Module 10: Deeper OOP

1. Nested & Inner Classes
2. this vs super, In Depth
3. Composition & Immutable Classes

Module 11: The Object Contract

1. equals() & hashCode()
2. toString()
3. Comparable vs Comparator

Module 12: Core Utilities

1. Exceptions
2. Collections
3. Generics Basics
4. Enums

Module 13: Exceptions Deep Dive

1. Custom Exceptions & Multi-Catch

Module 14: Collections Deep Dive

1. ArrayList vs LinkedList
2. HashMap vs TreeMap vs LinkedHashMap
3. Sets, Iterating & the Collections Class

Module 15: File I/O Basics

1. Reading & Writing Files
2. Dates & Times with java.time

Module 16: Annotations Basics

1. What Are Annotations?

Module 17: Packaging & Build

1. Packages, JARs & Build Tools