Returns the UpperCase Equivalent of Character

This is C program that asks user to return the character in Upper Case. User just declares a character and put char method to evaluate the condition. Display result on the screen as output.

Problem Statement
This is C program that ask user to return the uppercase equivalent.

1. Declare method.
2. Display result on the screen.

Here is C source code to find uppercase equivalent. The output of this program shown below. 

#include <ctype.h>
#include <stdio.h>
int main(void)
{
  putchar(toupper('a'));
}