Java Program to Check Whether a Character is a Vowel or Consonant

Introduction:

In this Java program, we will take a character as input from the user and check whether it is a vowel (a, e, i, o, u) or a consonant.
This is a simple program to understand conditional statements and character handling in Java.

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💻 Java Program:

import java.util.Scanner;

public class VowelOrConsonant {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        // Taking input from user
        System.out.print("Enter a character: ");
        char ch = sc.next().charAt(0);

        // Converting character to lowercase for easy comparison
        ch = Character.toLowerCase(ch);

        // Checking if the character is a letter
        if (ch >= 'a' && ch <= 'z') {
            // Checking vowel or consonant
            if (ch == 'a' || ch == 'e' || ch == 'i' || ch == 'o' || ch == 'u') {
                System.out.println(ch + " is a Vowel.");
            } else {
                System.out.println(ch + " is a Consonant.");
            }
        } else {
            System.out.println("Please enter an alphabet character only!");
        }

        sc.close();
    }
}

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🧠 Explanation:

1. We use the Scanner class to take input from the user.

2. The entered character is converted to lowercase using Character.toLowerCase() to handle both uppercase and lowercase letters.

3. The program checks:

   • If it’s an alphabet (a to z).

   • If it matches any vowel (a, e, i, o, u).

   • Otherwise, it’s a consonant.

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🧾 Example Output:

Enter a character: A
A is a Vowel.

Enter a character: t
t is a Consonant.

Enter a character: 5
Please enter an alphabet character only!

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🏁 Conclusion:

This program helps beginners understand how to use conditional statements (if-else) and character comparison in Java.
It’s a simple yet effective way to learn about vowels and consonants checking logic.