C Programming – Full Course Introduction | Basics to Advanced Learning Guide 2025

C PROGRAMMING – FULL COURSE – BASIC 

✅ Module 1: Introduction to C

1. What is C Language?

• General-purpose programming language

• Developed by Dennis Ritchie (1972)

• Used for:

  • Operating Systems (Linux, Windows core)

  • Embedded systems

  • Compilers

  • Gaming engines

2. Install Tools

✔ Windows: CodeBlocks / Dev-C++ / VS Code
✔ Linux/Mac: GCC pre-installed

3. First Program

#include <stdio.h>

int main() {
    printf("Hello, World!");
    return 0;
}

✅ Task:

✅ Install IDE + Run your first Hello World ✅

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✅ Module 2: C Basics – Variables, Data Types, Input/Output

Data Types Table

Type	Keyword	Example
Integer	int	10
Character	char	'A'
Float	float	10.5
Double	double	20.123456
String	char[]	"Hello"

Example: Take User Input

#include <stdio.h>

int main() {
    int age;
    printf("Enter your age: ");
    scanf("%d", &age);
    printf("You entered: %d", age);
    return 0;
}

✅ Exercise:

• Ask user name + age and print them

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✅ Module 3: Operators & Expressions

✔ Arithmetic: + - * / %
✔ Relational: > < >= <= == !=
✔ Logical: && || !
✔ Assignment: = += -= *=

Example:

int a = 10, b = 3;
printf("%d", a % b); // Output: 1

✅ Exercise:

• Write a program to calculate Simple Interest

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✅ Module 4: Conditional Statements (if, else, switch)

Example: Even / Odd

int n;
scanf("%d", &n);
if(n % 2 == 0)
    printf("Even");
else
    printf("Odd");

✅ Exercise:

• Find greatest among three numbers

• Make a simple menu using switch

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✅ Module 5: Loops (for, while, do-while)

Example: Print 1 to 10

for(int i=1; i<=10; i++) {
    printf("%d\n", i);
}

Example: Sum of digits using while

int num, sum = 0;
scanf("%d", &num);
while(num > 0) {
    sum += num % 10;
    num /= 10;
}
printf("%d", sum);

✅ Exercise:

• Multiplication Table

• Factorial using loop

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✅ Module 6: Arrays (1D & 2D)

Example: Array of Marks

int marks[5] = {70, 80, 75, 90, 88};
for(int i=0; i<5; i++){
    printf("%d ", marks[i]);
}

2D Array Example (Matrix)

int a[2][2] = {{1,2},{3,4}};

✅ Exercise:

• Find largest number in an array

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✅ Module 7: Strings

char name[20];
gets(name);
puts(name);

✅ Exercise:

• Count number of vowels in a string

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✅ Module 8: Functions

int sum(int x, int y){
    return x + y;
}
int main(){
    printf("%d", sum(5,7));
}

✅ Exercise:

• Function to check prime number

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✅ Module 9: Pointer

int a = 10;
int *p = &a;
printf("%d", *p);

✅ Exercise:

• Swap two numbers using pointers

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✅ Module 10: Structures

struct Student {
    char name[30];
    int age;
};

struct Student s = {"Rahim", 20};

✅ Exercise:

• Store 5 students info using structure

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✅ Module 11: File Handling

FILE *fp;
fp = fopen("data.txt", "w");
fprintf(fp, "Hello File");
fclose(fp);

✅ Exercise:

• Write & read employee record from file

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✅ Module 12: Dynamic Memory Allocation

✔ malloc, calloc, realloc, free

int *p;
p = (int*) malloc(5 * sizeof(int));

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✅ Final Project Ideas

Choose any:

✅ Student Management System
✅ Library Management
✅ Bank Account System
✅ Simple Calculator
✅ Contact Book with File Save

I can help you build any project step-by-step!

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🎯 Course Completion Quiz

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