find out how many upper case and lower case characters are present in the string .

 

#include <stdio.h>

#include <conio.h>

int main()

{

    int i;

    int upper=0,lower=0;

    char ch[100];

    printf("Enter the String:\n");

    gets(ch);

    for(i=0; ch[i]!=0; i++){

if(ch[i]>='A' && ch[i]<='Z'){

    upper++;

}

else if(ch[i]>='a' && ch[i]<='z'){

    lower++;

}

    }

printf("lowercase letters: %d",lower);

printf("\nuppercase letters: %d",upper);

getch();

   

}

output :

Enter the String: RAhul lowercase letters: 3 uppercase letters: 2