- C Programming Examples
- C Programming Examples
- C Print Hello World
- C Get Input from User
- C Print Integer
- C Add Two Numbers
- C Add Subtract Multiply Divide
- C Add n Numbers
- C Area Perimeter of Square
- C Area Perimeter of Rectangle
- C Area Circum of Circle
- C Fahrenheit to Celsius
- C Celsius to Fahrenheit
- C Inches to Centimeters
- C Kilogram to Gram
- C Reverse a Number
- C Swap Two Numbers
- C Interchange Numbers
- C Print ASCII Value
- C Print Fibonacci Series
- C Check Palindrome or Not
- C Check Armstrong or Not
- C Find Armstrong Numbers
- C Find nCr and nPr
- C Find Profit Loss
- C Sum of their Square
- C First & Last Digit Sum
- C Sum of All Digit
- C Product of All Digit
- C Print Total Digit in Number
- C Check Perfect Number
- C Find Basic Gross Salary
- C Round Number to Integer
- C Print Series upto n Term
- C Find Factors of Number
- C if-else & Loop Programs
- C Check Even or Odd
- C Check Prime or Not
- C Check Alphabet or Not
- C Check Vowel or Not
- C Check Leap Year or Not
- C Is Reverse Equal Original
- C Make Calculator
- C Add Digits of Number
- Count Positive Negative Zero
- C Largest of Two Numbers
- C Largest of Three Numbers
- C Smallest of Two Numbers
- C Smallest of Three Numbers
- C Find Factorial of Number
- C Find LCM & HCF
- C Find LCM of n Numbers
- C Find HCF of n Numbers
- C Find Arithmetic Mean
- C Find Average, Percentage
- C Find Student Grade
- C Print Table of Number
- C Print Prime Numbers
- C Find Discount Purchase
- C Calculate Parcel Charge
- C Calculate Wage of Labor
- C Print Phone Bill
- C Conversion programs
- C Decimal to Binary
- C Decimal to Octal
- C Decimal to Hexadecimal
- C Binary to Decimal
- C Binary to Octal
- C Binary to Hexadecimal
- C Octal to Decimal
- C Octal to Binary
- C Octal to Hexadecimal
- C Hexadecimal to Decimal
- C Hexadecimal to Binary
- C Hexadecimal to Octal
- C Pattern Programs
- C Pattern Printing Programs
- C Print Diamond Pattern
- C Print Floyd's Triangle
- C Print Pascal's Triangle
- C Array Programs
- C 1D Array Programs
- C Linear Search
- C Binary Search
- C Largest Element in Array
- C Smallest Element in Array
- C Second Largest/Smallest
- C Count Even Odd
- C Array Element at Even
- C Array Element at Odd
- C Print Even Array Elements
- C Print Odd Array Elements
- C Sum/Product of Even/Odd
- C Reverse an Array
- C Insert Element in Array
- C Delete Element from Array
- C Merge Two Arrays
- C Bubble Sort
- C Selection Sort
- C Insertion Sort
- C Print Common Elements
- C 2D Array Programs
- C Add Two Matrices
- C Subtract Two Matrices
- C Transpose a Matrix
- C Multiply Two Matrices
- C Sum All Matrix Elements
- C Largest Element in Matrix
- C Print Row Column Total
- C 3D Array Programs
- C String Programs
- C Print String
- C Find Length of String
- C Compare Two String
- C Copy a String
- C Concatenate String
- C Reverse a String
- C Count Vowels Consonants
- C Replace Vowel in String
- C Delete Vowels from String
- C Delete Word from String
- C Frequency of Character
- C Count Word in String
- C Remove Spaces from String
- C Sort a String
- C Sort String in Alphabetical
- C Sort Words in Ascending
- C Sort Words in Descending
- C Uppercase to Lowercase
- C Lowercase to Uppercase
- C Swap Two Strings
- C Check Anagram or Not
- C Check Palindrome String
- C Print Number in Words
- C Print Successive Character
- C Character without Space
- C File Programs
- C Read a File
- C Write Content to File
- C Read & Display File
- C Copy a File
- C Merge Two Files
- C Reverse File
- C Count All Character in File
- C List Files in Directory
- C Encrypt & Decrypt a File
- C Delete a File
- C Misc Programs
- Generate Random Numbers
- C Print Date Time
- C Print Message with Time
- C Get IP Address
- C Print Smiling face
- C Pass Array to Function
- Add Two Numbers using Pointer
- C Address of Variable
- C Shutdown Computer
- C Programming Tutorial
- C Tutorial
C Programming Examples
Programming is like mathematics. As in mathematics, theory is not enough. To clearly understand the topic, you must practice solving the problems related to it. Just like this, in programming, to learn any topic, you must practice coding (with yourself) related to the topic.
So here we have listed more than 200 programs with their output and a step-by-step explanation. Everything from the most basic C programs to shutting down your computer with a C program can be found here.
But before going through all those programs, let's first take a look at some of the interesting ones given here. I'm sure that, after having a look at the output of these programs listed here, your interest in programming will increase. Don't freak out when you see the code; you have no idea what's going on inside. You will learn more than you think about C programming over here.
The step-by-step explanation of all the programs starts on the next page. However, these programs are only a sample; you will learn much more about them on the following page.
I'm sure that, after learning all the programs (starts on the next page), you will be able to understand the programs given below and can also modify them yourself. And maybe you can create some programs that are beyond my thinking.
And I'm also sure you can create a lot of programs that are not listed here. But before going to the demo programs listed in this article, let's have a look at some popular programs available in the C language:
- Add two Numbers in C
- Leap Year Program in C
- Student Grade Program in C
- Greatest of Three Numbers in C
- Factorial of Number in C
- Fahrenheit to Centigrade in C
- Decimal to Binary Conversion in C
- Hexadecimal to Octal in C
- Pattern Printing Programs in C
- Binary Search Program in C
- Bubble Sort Program in C
- Matrix Multiplication Program in C
- Compare two String Program in C
- Delete Vowels from String in C
- Remove Spaces from String in C
- Convert Uppercase to Lowercase in C
- Copy File in C
- Shutdown Computer in C
C Examples - Demo Programs
As I've already said at the beginning of this article, after having a look at the output of these programs, you will get more interested in learning C. Let's get started with one of the simplest programs available in C.
C Program Example No. 1
The following is the simplest C program that will print "Hello Compiler, I am C" on the screen :
#include<stdio.h> #include<conio.h> int main() { printf("Hello Compiler, I am C"); getch(); // holds the output screen until the user press a key return 0; }
This program was built and runs under the Code::Blocks IDE. Here is the output produced by this program:
C Program Example No. 2
Here is the second program, where the user is allowed to enter any input.
#include<stdio.h> #include<conio.h> int main() { char name[20]; printf("Enter your Name: "); scanf("%s", name); printf("Hello, %s\nWelcome to codescracker.com", name); getch(); return 0; }
Here is the sample run of the previous (above) program:
C Program Example No. 3
This is a password-protected program. That is, the user is allowed to create a password and then enter it to see the result.
#include<stdio.h> #include<conio.h> #include<string.h> int main() { char pass[20], e_pass[20]; int num1, num2, sum; printf("Create a Password: "); scanf("%s", pass); printf("\nEnter any two number to Add: "); scanf("%d %d", &num1, &num2); printf("\nEnter password to see the Result: "); scanf("%s", e_pass); if(!strcmp(pass, e_pass)) { sum = num1 + num2; printf("\n%d + %d = %d", num1, num2, sum); } else printf("\nSorry! You entered a Wrong Password"); getch(); return 0; }
The sample run of the above C program in both cases (if the user enters the correct or wrong password) is shown here. This is the first output if the user enters the wrong password:
If the user enters the correct password, this is the second one:
C Program Example No. 4
This program receives a string input from the user and compares the string with yes to print the message according to the input. Don't worry, you'll learn everything one by one, beginning with the next page.
#include<stdio.h> #include<conio.h> #include<string.h> int main() { char str[10]; printf("Are you a Programmer ? "); scanf("%s", str); if(!strcmp("yes", str)) printf("\nWhat a True Mind, You have!"); else printf("\nSorry! You are telling a lie."); getch(); return 0; }
This is the first output:
If you are here, then you are interested in learning programming. So, assuming you're a programmer, why did we enter "no"?
Let's try to go for "yes". The following is the second output:
C Program Example No. 5
Here is another program in C that checks for invited members and prints whether the current user is invited or not based on user input.
#include<stdio.h> #include<conio.h> #include<string.h> int main() { char arr[6][20] = {"programmer", "developer", "engineer", "student", "teacher", "professor"}; char name[25]; int found=0; printf("Who are You ? "); scanf("%s", name); for(int i=0; i<6; i++) { if(!strcmp(name, arr[i])) { printf("\nCongratulation!!"); printf("\nYou're invited from codescracker.com."); found=1; break; } else found++; } if(found != 1) printf("\nSorry!\nYou're not invited."); getch(); return 0; }
The sample run of the above C program in both cases is shown here. The following is the first output:
The second is as follows:
C Program Example No. 6
This is the last demo program. That is, on the next page, you will see programs with their output and a step-by-step explanation of the code.
#include<stdio.h> #include<conio.h> int main() { int starTot, rowTot, i, j, starInOneRow, rem; printf("How many stars you want to print ? "); scanf("%d", &starTot); printf("Upto how many rows ? "); scanf("%d", &rowTot); starInOneRow = starTot/rowTot; rem = starTot%rowTot; printf("\n"); i=0; while(i<rowTot) { if(i!=0) printf("\n"); for(j=0; j<starInOneRow; j++) printf("* "); i++; } if(rem!=0) { for(i=0; i<rem; i++) printf("* "); } getch(); return 0; }
The snapshot given below is its sample run:
This is the second sample run:
From here on out, you will be introduced to the world of C programming, from the fundamentals to the advanced level. A step-by-step explanation of all the programs is given.
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