c program to check whether input alphabet is a vowel or not

This code checks whether an input alphabet is a vowel or not. Both lower-case and upper-case are checked.

#include<stdio.h>
#include<conio.h>

void main()
{
    char ch;
    printf("Enter a character\n");
    scanf("%c",&ch);
    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 not a vowel.\n", ch);
    getch();

}


Output: