# Check Alphabet ## Write a program to check alphabet Check that the given character is an alphabet or not (a-z, A-Z). ```txt Input : a Output : Alphabet ``` --- ```c //CheckAlphabet.c #include int main() { char ch; scanf("%c",&ch); if((ch>='A' && ch<='Z') || (ch>='a' && ch<='z')) printf("Alphabet\n"); else printf("Not Alphabet\n"); return 0; } ``` ```cpp //Contributed by Raghav Garg //CheckAlphabet.cpp #include using namespace std; int main() { char ch; cin>>ch; if((ch>='A' && ch<='Z') || (ch>='a' && ch<='z')) cout<<"Alphabet"<<'\n'; else cout<<"Not Alphabet"<<'\n'; } ``` ```csharp using System; class CheckAlphabet { static public void Main() { Console.WriteLine("Input a character: "); char ch = (char)Console.Read(); if (Char.IsLetter(ch)) { Console.WriteLine(ch + " is an alphabet"); } else { Console.WriteLine(ch + " is not an alphabet"); } } } ``` ```java import java.util.Scanner; class CheckAlphabet { public static void main(String[] args) { Scanner input = new Scanner(System.in); System.out.print("Input a character: "); char ch = input.next().charAt(0); if ((ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z')) { System.out.println(ch + " is an alphabet"); } else { System.out.println(ch + " is not an alphabet"); } } } ``` ```javascript function isCharacterALetter(char) { return /[a-zA-Z]/.test(char) ? "Alphabet" : "Not Alphabet"; } console.log(isCharacterALetter("a")); console.log(isCharacterALetter("Z")); console.log(isCharacterALetter("!")); ``` ```kotlin fun main() { print("Input : ") println() var input = readLine() println("Is $input is an alphabet : " + CheckAlphabet(input!!)) } private fun CheckAlphabet(inputStr: String): Boolean { val c = inputStr.first() if (c in 'a'..'z' || c in 'A'..'Z') return true else return false } ``` ```ruby print "Enter a string: "; str = gets.chomp; puts case when str.match(/\d/) "Input string contains numbers"; when str.match(/[a-zA-Z]/) "Input string contains letters"; else "Invalid choice"; end ``` ```swift import Swift import Foundation extension String { var isAlphabet: Bool { return !isEmpty && range(of: "[^a-zA-Z]", options: .regularExpression) == nil } } print("A".isAlphabet) //true print("a".isAlphabet) //true print("1".isAlphabet) //false print("&".isAlphabet) //false ``` ```typescript function isCharacterALetter(char: string): string { return /[a-zA-Z]/.test(char) ? "Alphabet" : "Not Alphabet"; } console.log(isCharacterALetter("a")); console.log(isCharacterALetter("Z")); console.log(isCharacterALetter("!")); ``` ```scala object alphabets { def main(args:Array[String]):Unit={ val ch = 'a'; val result = ch.isLetter; println("Alphabet : "+result); } } ``` ```go package main import ( "fmt" "regexp" ) var isAlphabet = regexp.MustCompile(`^[a-zA-Z]`).MatchString func main() { var str string fmt.Print("Input a character: ") fmt.Scan(&str) if (isAlphabet(str)) { fmt.Println("Alphabet") } else { fmt.Println("Non Alphabet") } } ``` ```php (), Err(err) => println!("Could not read input: {}", err), } match input.trim().parse::() { Ok(n) => print_multi_table(n), Err(_) => println!("Input is not a valid number."), } } fn print_multi_table(n: i32) { let mut i = 1; while i <= 10 { println!("{n} x {i} = {result}", n = n, i = i, result = n * i); i += 1; } } ```

Check Alphabet

Write a program to check alphabet

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