C program to count all occurrences of a character in a string; Through this tutorial, we will learn how to count number of occurrences of a character in a string using for loop, while loop, recursion and functions in c programs.
Programs to Count All Occurrences of a Character in a String in C
- C Program to Count All Occurrences of a Character in a String using For Loop
- C Program to Count All Occurrences of a Character in a String using While Loop
- C Program to Count All Occurrences of a Character in a String Using Recursion
- C Program to Count All Occurrences of a Character in a String using Function
C Program to Count All Occurrences of a Character in a String using For Loop
#include <string.h>
int main()
{
char s[1000],c;
int i,count=0;
printf("Enter the string : ");
gets(s);
printf("Enter character to be searched: ");
c=getchar();
for(i=0;s[i];i++)
{
if(s[i]==c)
{
count++;
}
}
printf("character '%c' occurs %d times \n ",c,count);
return 0;
}
The Output of the above c program; as follows:
Enter the string : welcome to programmer world Enter character to be searched: o character 'o' occurs 4 times
C Program to Count All Occurrences of a Character in a String using While Loop
/* C Program to Count All Occurrence of a Character in a String */
#include <stdio.h>
#include <string.h>
int main()
{
char str[100], ch;
int i, Count;
i = Count = 0;
printf("\n Please Enter any String : ");
gets(str);
printf("Enter character to be searched: ");
scanf("%c", &ch);
while(str[i] != '/* C Program to Count All Occurrence of a Character in a String */
#include <stdio.h>
#include <string.h>
int main()
{
char str[100], ch;
int i, Count;
i = Count = 0;
printf("\n Please Enter any String : ");
gets(str);
printf("Enter character to be searched: ");
scanf("%c", &ch);
while(str[i] != '\0')
{
if(str[i] == ch)
{
Count++;
}
i++;
}
printf("\n The Total Number of times '%c' has Occured = %d ", ch, Count);
return 0;
}')
{
if(str[i] == ch)
{
Count++;
}
i++;
}
printf("\n The Total Number of times '%c' has Occured = %d ", ch, Count);
return 0;
}
The Output of the above c program; as follows:
Please Enter any String : welcome to c programming world Enter character to be searched: c The Total Number of times 'c' has Occured = 2
C Program to Count All Occurrences of a Character in a String Using Recursion
#include <stdio.h>
#include <string.h>
int check(char *s,char c)
{
static int i=0,count=0;
if(!s[i])
{
return count;
}
else
{
if(s[i]==c)
{
count++;
}
i++;
check(s,c);
}
}
int main()
{
char s[1000],c;
int count=0;
printf("Enter the string : ");
gets(s);
printf("Enter character to be searched: ");
c=getchar();
count=check(s,c);
printf("character '%c' occurs %d times \n ",c,count);
return 0;
}
The Output of the above c program; as follows:
Enter the string : hello test Enter character to be searched: t character 't' occurs 2 times
C Program to Count All Occurrences of a Character in a String using Function
/* C Program to Count All Occurrence of a Character in a String */
#include <stdio.h>
#include <string.h>
int Count_AllCharcater(char str[], char ch);
int main()
{
char str[100], ch;
int Count;
Count = 0;
printf("\n Please Enter any String : ");
gets(str);
printf("Enter character to be searched: ");
scanf("%c", &ch);
Count = Count_AllCharcater(str, ch);
printf("\n The Total Number of times '%c' has Occured = %d ", ch, Count);
return 0;
}
int Count_AllCharcater(char str[], char ch)
{
int i, Count;
Count = 0;
for(i = 0; i <= strlen(str); i++)
{
if(str[i] == ch)
{
Count++;
}
}
return Count;
}
The Output of the above c program; as follows:
Please Enter any String : test Enter character to be searched: t The Total Number of times 't' has Occured = 2
