C Programming: Find the Frequency of Characters

C String: Exercise-18 with Solution

Write a program in C to Find the Frequency of Characters.

Sample Solution:

C Code:

#include <stdio.h>
void main(){
   char str[1000],choice;
   int i,ctr=0;
   
       printf("\n\nFind the Frequency of Characters :\n");
       printf("--------------------------------------\n");	
	   
	printf("Input the string : ");
    fgets(str,sizeof str,stdin);
	
   printf("Input the character to find frequency: ");
   scanf("%c",&choice);
   for(i=0;str[i]!='\0';++i)
   {
       if(choice==str[i])
           ++ctr;
   }
   printf("The frequency of '%c' is : %d\n\n", choice, ctr);
}

Sample Output:

Find the Frequency of Characters :                                                                                            
--------------------------------------                                                                                        
Input the string : This is a test string                                                                                      
Input the character to find frequency: i                                                                                      
The frequency of 'i' is : 3

Flowchart :

C Programming Code Editor:

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