C Program To Check Uppercase and Lowercase Character
Learn How To Check Uppercase and Lowercase Character in C Programming Language. We have mentioned Two different Methods To Check Lowercase and Uppercase Characters.
The First method consists of Built-In Library Functions such as islower() and isupper() which are declared under <ctype.h> Header file. The Second Method checks Characters for its Case by using ASCII Values. It checks for particular range of ASCII Values.
Also Read: C Program To Check ASCII Values and Character
Method 1: C Program To Check Uppercase and Lowercase Character using Library Functions
1 2 3 4 5 6 7 8 9 10 11 12 13 14 | #include<stdio.h> #include<ctype.h> int main() { char ch; printf("\nEnter A Character:\t"); scanf("%c", &ch); if(islower(ch)) printf("\n%c is a Lower Case Character\n", ch); else if(isupper(ch)) printf("\n%c is a Upper Case Character\n", ch); return 0; } |
Method 2: C Program To Check if Character is Uppercase or Lowercase using ASCII Values
1 2 3 4 5 6 7 8 9 10 11 12 13 | #include<stdio.h> int main() { char ch; printf("\nEnter A Character:\t"); scanf("%c", &ch); if(ch >= 65 && ch <= 90) printf("\n%c is a Upper Case Character\n", ch); else if(ch >= 97 && ch <= 122) printf("\n%c is a Lower Case Character\n", ch); return 0; } |
Also Read: C Program To Convert Lowercase into Uppercase Character and vice-versa
Output
Also Read: C Program Code To Character is Alphabet or Digit
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