CPNM LAB PROGRAM-3

cpnm lab 3 programming made by ece the wonders ***THANK YOU***

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3. Write a set of string manipulation functions e.g. for getting a sub-string from a given position, Copying one string to another, Reversing a string, adding one string to another

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PROGRAM:-

#include<stdio.h>

#include<string.h>

#include<stdlib.h>

 

int main()

{

 char string1[25],string2[25];

 int choice;

 char* p;

 while (1)

{

 printf("the list of string manipulation operations\n");

 printf("__________________________________________\n");

 printf("\n1.Finding string length\n2.Finding string concatenation\n3.Compare two strings\n4.Copying two strings\n5.Reverse of string\n6.Extract the given string\n7.Exit\n");

 printf("_____________________________\n");

 printf("choose (1-7) from the above list:");

  scanf("%d",&choice);

  switch (choice)

{ 

  case 1:

  printf("enter the string1 :");

   scanf("%s",string1);

  printf("the length of the string is %ld\n",strlen(string1));

 printf("__________________________________________\n");

  break;

  case 2:

  

  printf("enter two strings :");

   scanf("%s%s",string1,string2);

  strcat(string1,string2);

  printf("the concatenated string is =%s\n",string1);

  printf("__________________________________________\n");

  break;

  case 3:

  

  printf("enter two strings :");

   scanf("%s%s",string1,string2);

  if (strcmp(string1,string2)==0)

  { printf("the given two strings are equal");}

  else

  { printf("the given two strings are not equal\n");}

 printf("__________________________________________\n");

  break;

  case 4:

  printf("enter the string :");

   scanf("%s",string1);

  printf("string1=%s\n",string1);

  printf("after copying string1 to string2\n");

  strcpy(string2,string1);

  printf("string2=%s\n",string2);

   printf("__________________________________________\n");

  break;

 /* case 5:

  printf("enter the string");

   scanf("%s",string1);

  printf("before reversing string1 = %s",string1);

  strrev(string1);

  printf("after reversing of string is = %s",string1);

  printf("___________________________________\n");

  break;*/

  case 6:

  

  printf("Extracting substring from a given string\n");

  printf("enter the string :");

   scanf("%s",string1);

  printf("Enter the sub string to extract :");

   scanf("%s",string2);

  

  p = strstr(string1,string2);

  

   if (p)

  { 

    printf("string found\n");

    printf("First occurence of string %s in %s is %s\n",string1,string1,p);

     printf("__________________________________________\n");

  }

   else

  

  { printf("string not Found\n");

   printf("__________________________________________\n");}

break;

  case 7:

  

  exit(0);

  }

  

  }

   return 0;

  }

  

  

output:-

 

selection of text is disabled so please dont try to copy and pasting the code