Write a menu driven program in 'c'
which performs the following, operations on string.
*check if one
string is substring of another string,
*count number of occurrences of
a character in the string,
*Exit.
#include<stdio.h>
#include<conio.h>
#include<string.h>
void main()
{
int ch;
char str1[30],str2[30],occ;
int i=0,cnt=0;
clrscr();
while(1)
{
printf("\n menues");
printf("\n1. check if one string is substring of another string");
printf("\n2. count number of occurrences of characters in the string");
printf("\n3.exit");
printf("\nEnter Your choice: ");
scanf("%d",&ch);
switch(ch)
{
case 1:printf("\n enter the first string");
scanf("%s",str1);
printf("\n enter the second string");
scanf("%s",str2);
if(strstr(str1,str2)==NULL)
{
printf("\n second string is not substring of first string");
}
else
{
printf("\n second string is substring of first string");
}
break;
case 2:
printf("\n enter the string");
scanf("%s",&str1);
printf("\n enter the character to find occurences");
scanf("%s",&occ);
i=0,cnt=0;
while(str1[i]!='\0')
{
if(str1[i]==occ)
{
cnt++;
}
i++;
}
printf("\n the number of occurencs is %d",cnt);
break;
case 3:exit(0);
}
}
getch();
}
/* output
menues
1. check if one string is substring of another string
2. count number of occurrences of characters in the string
3.exit
Enter Your choice: 1
enter the first stringindia
enter the second stringind
second string is substring of first string
menues
1. check if one string is substring of another string
2. count number of occurrences of characters in the string
3.exit
Enter Your choice: 2
enter the stringmaharashtra
enter the character to find occurencesa
the number of occurencs is 4
menues
1. check if one string is substring of another string
2. count number of occurrences of characters in the string
3.exit
Enter Your choice:*/
