C Program to check the letter is vowel or consonant

C Program to check the letter is vowel or consonant

Problem:  Write a C program to check the letter is vowel or consonant.

Solution:

C code to check vowel or consonant using if-else

#include <stdio.h>
 
int main()
{
  char ch;
 
  printf("Input a charactern");
  scanf("%c", &ch);
 
  if ((ch >= 'a' && ch <= 'z') || (ch >= 'A' &&ch <= 'Z')) {
    if (ch=='a' || ch=='A' || ch=='e' || ch=='E' || ch=='i' || ch=='I' || ch=='o' || ch=='O' || ch== 'u' || ch=='U')
      printf("%c is a vowel.n", ch);
    else
      printf("%c is a consonant.n", ch);
  }
  else
    printf("%c is neither a vowel nor a consonant.n", ch);
 
  return 0;
}

C code to check vowel or consonant using switch-case

#include <stdio.h>
int main()
{
  char ch;
 
  printf("Input a charactern");
  scanf("%c", &ch);
 
  switch(ch)
  {
    case 'a':
    case 'A':
    case 'e':
    case 'E':
    case 'i':
    case 'I':
    case 'o':
    case 'O':
    case 'u':
    case 'U':
      printf("%c is a vowel.n", ch);
      break;
    default:
      printf("%c is not a vowel.n", ch);
  }              
 
  return 0;
}

Demonstration:
This is a simple code to check if the taken character is a vowel or not.

1. Take the character as character or %c.
2. And in predefined character set there’s value of the A, B, C,….Z or a,b,c,…z
3. So check if the character is A, E, I, O, U or a,e,i,o,u. If the characters are these, then just say this is vowel otherwise say it is a consonant.
4. That’s it.
5. Implement the C Code cow.