Variables and Data Types

Variable Declaration

Variable Initialization

Variable Assignment

Naming Rules and Conventions

Scope and Lifetime Concepts

Integer Types

Floating-Point Types

Character Type

Boolean Representation

signed and unsigned

const Qualifier

volatile Qualifier

register Storage Class

static Storage Class

extern Storage Class

Implicit Type Conversion

Explicit Type Casting

Promotion Rules

Truncation and Overflow

Integer Literals

Floating-Point Literals

Character Literals

String Literals

Symbolic Constants with #define

const Variables

enum Declaration

Enumeration Constants

Underlying Integer Values

Use Cases and Benefits