Example & Tutorial understanding programming in easy ways.

Write a program to check given char is alphabet or not.

Alphabet characters:
All english character are the alphabet characters.

Example-
a,b,c,d,...............x,y,z
A,B,C,D,...............X,Y,Z

How we identify?
-We use te ASCII value concept to identify each and every character of the keyword.
ASCII value for lower case alphabet:
a=97,b=98,.........z=122
ASCII value for upper case alphabet:
A=65,B=66,..........Z=90

program-

#include < stdio.h>
int main()
{
char ch;
printf("Enter any character");
scanf("%c",&ch);
if((ch>='A' && ch<='Z') | (ch>='a' && ch<='z'))
{
printf("Yes %c is a alphabet",ch);
}
else
{
printf("It is not a alphabet");
}
return 0;
}

output:

Enter any character
D
Yes D is a character

Enter any character
&
It is not a alphabet




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