C Programming Tutorial

 
 
 

Advanced Programming

Array

One dimensional array Two dimensional Array Two dimensional array pointers Array of pointers Print array Print Array - for loop Print array in reverse Print address array - for loop Multidimentional array - function Print address array - pointers Print reverse string of array Print array ascii value-without atoi Character array - upper case Multiplication table - 2D array Passing array to function Max or greatest value in array Merge sorted array Array of structure Array of pointers to string Array within a structure

String Programs

Copy string Substring of string String concatination Vowel in string Swap char in string Palindrome string Rotate string Bubble sort of strings Sorting of words Encode decode string Compress string

File Programs

Read write in 2 files Add,edit,delete,search in file Add,search using structure Append in file Merge file Count word,line,char in file Count record - struct fread() example fwrite() example fopen() example fclose() example fscanf() and fprintf() fseek() example Error handling in file op Find odd,even num Odd even numbers in file Max, min age in class Random numbers file Preprocessor in 2 files Encode decode in file

Bios Programming

biosequip( ) - sys confi biosdisk( ) - partition tbl info Pc type-bios data area File allocation table Telephone directory

TSR Programming

Interchange letters Interchange letters on screen Unload TSR on key press-keyboard Unload TSR - timer interrupt Activate, deactivate TSR Print alphabet from printer Repeat key press Keep caps on Make ctrl, alt key pressed

Interrupt Programming

Restart computer Conventional memory of sys Save IVT in file Print string-interrupt 21h Read char-interrupt 21h Read char with echo-interrupt 21h Delete file-interrupt 21h Delete directory-interrupt 21h Get set system date Show system configuration Search, delete file in dir Display multiple file in dir

Mouse Programming

Text mode mouse handling Graphics mode mouse handling Double click of mouse
 

Program to swap even positioned characters with odd positioned characters in a given string

 

Image

#include <stdio.h>
#include <conio.h>
#include <string.h>
void main(){
     char str[20],tmp;
     int i,j;
     clrscr();
     printf(\"\\nEnter a string : \");
     scanf(\"%s\",str);
     printf(\"\\n\\nOriginal String     : %s\",str);
     for(i=0;i<strlen(str);i=i+2){
     tmp = str[i];
     str[i] = str[i+1];
     str[i+1] = tmp;
     }
     printf(\"\\nAfter Swap String      : %s\",str);
     getch();
}

    Related Post:
  1. Program to multiply two sparse matrices
  2. Program to add two polynomials maintained as linked lists
  3. DEFINING, ASSIGNING AND ACCESSING VALUES TO STRUCTURE MEMBERS
  4. Program to add 2 numbers
  5. Example of recursive function
  6. Program that implements a priority queue using an array
  7. MILE SIMPSON METHOD
  8. Program to display array values and address of an array using pointers
  9. Program of histogram using self-scheduling and locking the whole bin
  10. Program to implement the least square method
  11. Program to add two polynomials
  12. Program to create processes using fork() and check different states of zombie process
  13. Program on deque that implements a linked list
  14. Program to print triangle of numbers in reverse pattern
  15. Program to compare number is greater than 100 or not using if statement
  16. Program to calculate the frequency for different values of C starting from 0.01 to 0.1 in steps of 0.01
  17. Basic GAUSS ELIMINATION METHOD, GAUSS ELIMINATION WITH PIVOTING, GAUSS JACOBI METHOD, GAUSS SEIDEL METHOD
  18. Program to find even or odd number using switch case
  19. Program to calculate net bill by deducting discount
  20. PROGRAM OF CREAT HEADER FILES FOR P_FORK,P_JOIN AND SHARED MEMORY