Java Program to check whether input character is vowel or consonant.
In this program you'll learn, how to check that a character is vowel or consonant.
To understand this example, you should have the knowledge of the following Java programming topics:
Checking input character
A java program to check the input character is vowel or consonant is as follows:
Code:
import java.util.Scanner;
public class VowelOrConsonant {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
// Input character from user
System.out.print("Enter a single alphabet character: ");
char alphabet = scanner.next().charAt(0);
char ch = String.valueOf(alphabet).toLowerCase().charAt(0);
// Check if input is an alphabet
if ((ch >= 'a' && ch <= 'z')) {
// Check for vowel
if (ch == 'a' || ch == 'e' || ch == 'i' || ch == 'o' || ch == 'u') {
System.out.println(alphabet + " is a vowel.");
} else {
System.out.println(alphabet + " is a consonant.");
}
} else {
System.out.println("Invalid input. Please enter an alphabet letter.");
}
scanner.close();
}
}Output:
Enter a single alphabet character: E
E is a vowel.
Enter a single alphabet character: f
f is a consonant.The Java program:
Takes a single character as input.
Converts it to lowercase.
Checks if it’s an alphabet.
If it's a vowel (a, e, i, o, u), it prints “vowel”.
Otherwise, it prints “consonant”.
If not a letter, it prints “Invalid input”.
Simple and effective for basic character classification.