Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
Write C program using isupper() function
Problem
How to identify a total number of upper-case alphabets in a string using C Programming?
Solution
The logic we used to count number of upper-case letters in a sentence is as follows −
for(a=string[0];a!='\0';i++){
a=string[i];
if (isupper(a)){
counter=counter+1;
//counter++;
}
}Example 1
#include<stdio.h>
#include<ctype.h>
void main(){
//Declaring integer for number determination, string//
int i=0;
char a;
char string[50];
int counter=0;
//Reading User I/p//
printf("Enter the string :");
gets(string);
//Using For loop and predefined function to count upper case alpha's//
for(a=string[0];a!='\0';i++){
a=string[i];
if (isupper(a)){
counter=counter+1;
//counter++;
}
}
//Printing number of upper case alphabets//
printf("Capital letters in string : %d
",counter);
}Output
Enter the string :TutoRialsPoint CPrograMMing Capital letters in string : 7
Example 2
In this program, we shall see how to count upper case letters without using isupper() −
#include<stdio.h>
int main(){
int upper = 0;
char string[50];
int i;
printf("enter The String :
");
gets(string);
i = 0;
while(string[i]!= ' '){
if (string[i] >= 'A' && string[i] <= 'Z')
upper++;
i++;
}
printf("
Uppercase Letters : %d", upper);
return (0);
}Output
enter The String : TutOrial Uppercase Letters : 2
Updated on: 06-Mar-2021
128 Views
Advertisements