C Exercises: Find the first capital letter in a string
C Recursion : Exercise-20 with Solution
Write a program in C to find the first capital letter in a string using recursion.
Pictorial Presentation:
Sample Solution:
#include <stdio.h>
#include <string.h>
#include <ctype.h>
char checkCapital(char *);
int main()
{
char str1[20], singLet;
printf("\n\n Recursion : Find the first capital letter in a string :\n");
printf("------------------------------------------------------------\n");
printf(" Input a string to including one or more capital letters : ");
scanf("%s", str1);
singLet = checkCapital(str1);
if (singLet == 0)
{
printf(" There is no capital letter in the string : %s.\n", str1);
}
else
{
printf(" The first capital letter appears in the string %s is %c.\n\n", str1, singLet); }
return 0;
}
char checkCapital(char *str2)
{
static int i = 0;
if (i < strlen(str2))
{
if (isupper(str2[i]))
{
return str2[i];
}
else
{
i = i + 1;
return checkCapital(str2);
}
}
else return 0;
}
Sample Output:
Recursion : Find the first capital letter in a string : ------------------------------------------------------------ Input a string to including one or more capital letters : testString The first capital letter appears in the string testString is S.
Flowchart:
C Programming Code Editor:
Have another way to solve this solution? Contribute your code (and comments) through Disqus.
Previous: Write a program in C to copy One string to another using recursion.
Next: Write a program in C for binary search using recursion.
What is the difficulty level of this exercise?
Test your Programming skills with w3resource's quiz.
C Programming: Tips of the Day
Static variable inside of a function in C
The scope of variable is where the variable name can be seen. Here, x is visible only inside function foo().
The lifetime of a variable is the period over which it exists. If x were defined without the keyword static, the lifetime would be from the entry into foo() to the return from foo(); so it would be re-initialized to 5 on every call.
The keyword static acts to extend the lifetime of a variable to the lifetime of the programme; e.g. initialization occurs once and once only and then the variable retains its value - whatever it has come to be - over all future calls to foo().
Ref : https://bit.ly/3fOq7XP
- New Content published on w3resource:
- HTML-CSS Practical: Exercises, Practice, Solution
- Java Regular Expression: Exercises, Practice, Solution
- Scala Programming Exercises, Practice, Solution
- Python Itertools exercises
- Python Numpy exercises
- Python GeoPy Package exercises
- Python Pandas exercises
- Python nltk exercises
- Python BeautifulSoup exercises
- Form Template
- Composer - PHP Package Manager
- PHPUnit - PHP Testing
- Laravel - PHP Framework
- Angular - JavaScript Framework
- Vue - JavaScript Framework
- Jest - JavaScript Testing Framework