Abhishek Verma

Become a Java Developer with Abhishek Verma

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Java Basics Content

I believe the best way to start learning Java is by using your college book. Any book will work, as long as it covers the following concepts in detail, in the given sequence.

💡 Core Java Basics

  1. Why Java?
  2. What is Java?
  3. Java Architecture (JDK, JRE & JVM)
  4. First Hello World Program
  5. Class, Method & Object (Structure & Naming Practices)
  6. Data Types (Primitive & Non-Primitive)
  7. Variables (Declaration, Initialization & Naming Practices)
  8. Keywords & Reserved Words
  9. Comments (Single-line & Multi-line)
  10. Operators (Arithmetic, Bitwise, Shift, Relational, Ternary & Logical)
  11. Type Casting (Implicit & Explicit)

📊 Control Flow & Arrays

  1. Conditional Statements (if, else & switch)
  2. Loops (for, while & do-while)
  3. break & continue Keywords
  4. Arrays (1D & 2D Arrays & Array of Objects)
  5. Enhanced For Loop

🔍 Object-Oriented Programming (OOP)

  1. OOP Principles (Encapsulation, Inheritance, Polymorphism & Abstraction)
  2. Packages & Imports
  3. Constructors (Default & Parameterized)
  4. this Keyword
  5. Inheritance (Single, Multilevel & Hierarchical)
  6. instanceof Operator
  7. Polymorphism (Method Overloading & Method Overriding)
  8. Access Modifiers (public, private, protected & default)
  9. super Keyword
  10. final Keyword (Variables, Methods & Classes)
  11. static Modifier (Variables, Methods & Blocks)
  12. Variable Arguments (Varargs)
  13. Abstract Class
  14. Interface (Including default, static & private methods)

🧰 Essential Java Utilities

  1. Annotations (Built-in & Custom)
  2. Object Class (toString(), equals(), hashCode(), etc.)
  3. String Class (Immutable & Methods)
  4. StringBuilder Class (Mutable Strings)
  5. Scanner Class (User Input)
  6. Inner Classes (Local, Anonymous, Static & Member Inner Classes)
  7. Garbage Collection & Memory Management
  8. Enumeration (Enums)
  9. Record (Immutable Data Class in Java)

After mastering these topics, check out my Java Advanced playlist to dive into more complex concepts.