Variables and Data Types
5 Topics
Variables Fundamentals
4 Sub-topics
What are Variables Concept and Purpose
Initializing Variables Best Practices
Variable Scope Introduction
Basic Data Types
6 Sub-topics
Integer Data Type (int) Explained
Character Data Type (char) Explained
Floating Point Types (float and double)
Signed and Unsigned Modifiers
Size of Data Types (sizeof Operator)
Constants and Literals
5 Sub-topics
Constants and Literals Part 1 (Numeric Literals)
Constants and Literals Part 2 (Character and String Literals)
The const Keyword Creating Constants
#define Preprocessor Constants
const vs #define When to Use Which
Storage Classes
5 Sub-topics
Global Variables and Their Usage
Static Variables Persistence Explained
Extern Variables Cross-File Access
Register Variables Optimization Hint
Type Conversion
4 Sub-topics
Type Conversion Implicit Casting
Type Conversion Explicit Casting
Type Overflow and Underflow
Best Practices for Variable Declaration
Arithmetic Operators
5 Sub-topics
Introduction to Operators Categories Overview
Arithmetic Operators Basic Math Operations
Arithmetic Operators Modulus and Division
Increment and Decrement Operators
Pre-increment vs Post-increment Deep Dive
Assignment and Relational Operators
2 Sub-topics
Assignment Operators Simple and Compound
Relational Operators Comparisons
Logical Operators
2 Sub-topics
Logical Operators AND OR NOT
Short-Circuit Evaluation Explained
Bitwise Operators
3 Sub-topics
Bitwise Operators AND OR XOR Part 1
Bitwise Operators NOT Shifts Part 2
Bitwise Operators Practical Applications Part 3
Other Operators
5 Sub-topics
Conditional (Ternary) Operator
Comma Operator Sequential Evaluation
sizeof Operator Memory Measurement
Address-of Operator (&) Introduction
Dereference Operator (*) Introduction
Operator Precedence
4 Sub-topics
Operator Precedence Complete Table
Operator Associativity Rules
Complex Expressions Evaluation Order
Common Operator Mistakes to Avoid
Input and Output Operations
4 Topics
Standard Output
8 Sub-topics
Introduction to Standard I/O
The printf() Function Basic Usage
printf() Format Specifiers Part 1 (Integer and Character)
printf() Format Specifiers Part 2 (Float and String)
printf() Format Specifiers Part 3 (Special Formats)
printf() Width and Precision Modifiers
printf() Flags Alignment and Padding
Escape Sequences in Output
Standard Input
4 Sub-topics
The scanf() Function Basic Input
scanf() Format Specifiers Explained
scanf() Common Pitfalls Buffer Issues
scanf() with Multiple Inputs
Character I/O Functions
4 Sub-topics
The getchar() Function Character Input
The putchar() Function Character Output
The gets() and puts() Functions (Deprecated)
Safe String Input with fgets()
Formatted I/O
5 Sub-topics
Formatted Output with sprintf()
Formatted Input with sscanf()
Clearing Input Buffer Techniques
Input Validation Best Practices
Creating User-Friendly Input Prompts