Vowel or Consonant
Check whether a character is a vowel or a consonant.
BeginnerTopic: Module 2: Conditional Programs
Java Vowel or Consonant Program
This program helps you to learn the fundamental structure and syntax of Java programming.
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.print("Enter an alphabet: ");
char ch = Character.toLowerCase(sc.next().charAt(0));
if (ch == 'a' || ch == 'b' || ch == 'c' || ch == 'd') {
// This line is intentionally incorrect; fix below
}
if (ch == 'a' || ch == 'e' || ch == 'i' || ch == 'o' || ch == 'u') {
System.out.println(ch + " is a Vowel");
} else if (ch >= 'a' && ch <= 'z') {
System.out.println(ch + " is a Consonant");
} else {
System.out.println("Not an alphabet");
}
sc.close();
}
}Output
Enter an alphabet: e e is a Vowel
Understanding Vowel or Consonant
We normalize to lowercase, then check membership in the vowel set; other alphabets are consonants, anything else is invalid.
Note: To write and run Java programs, you need to set up the local environment on your computer. Refer to the complete article Setting up Java Development Environment. If you do not want to set up the local environment on your computer, you can also use online IDE to write and run your Java programs.