Java Programming Basics

📋 Course Outline

1. Java Program Structure
2. Java Data Type Categories
3. Primitive Data Types
4. Variables and Constants
5. Type Casting
6. Control Structures
7. Selection Structures

📖 1. Java Program Structure

🔑 Key Concepts & Definitions

• Java : A high-level, object-oriented programming language used to create robust, secure, and platform-independent applications.
• Class : A class is the basic unit of a Java program, and all Java code is grouped into classes.
• main() method : The main() method is the entry point of program execution, and a Java class can have only one main() method.

📝 Essential Points

• 🔄 A class definition follows this order:
  1. An access modifier such as public
  2. The keyword class
  3. The class name
  4. Opening and closing braces

💡 Memory Hook

Class → main() → statements

📖 2. Java Data Type Categories

📝 Essential Points

📌 Java data types have two main categories: primitive data types, such as int, double, char, and boolean, and reference data types, which include arrays, classes, and interfaces.

💡 Memory Hook

Primitive values versus reference objects

📖 3. Primitive Data Types

🔑 Key Concepts & Definitions