Java Programming : Alphabet or not an alphabet

Example

Input
A
Output
It is an aplhabet

Required to Know

Use of Variables, Use of different operators like assignment or arithmetic operators, Use of methods like System. out.print(), and use of next().charAt(0), Use of If-else, and Use of Data types.

Steps

• Take the character as input from the user.

• check if the character falls under these two range: -

  • a - z

  • A - Z

• Now if the character falls under this range, print "it is an alphabet". Otherwise, print "it is not an alphabet".

Program

import java.util.Scanner;

public class alphabet {

  /**
   * This program checks if a character is an alphabet.
   *
   */
  public static void main(String[] args) {
    // Create a Scanner object to read user input.
    Scanner sc = new Scanner(System.in);

    // Prompt the user to enter a character.
    System.out.print("Enter the character: ");
    char ch = sc.next().charAt(0);

    // Check if the character is an alphabet.
    if (ch >= 'a' && ch <= 'z' || ch >= 'A' && ch <= 'Z') {
      // The character is an alphabet.
      System.out.println("It is an alphabet");
    } else {
      // The character is not an alphabet.
      System.out.println("It is not an Alphabet");
    }
  }
}