Vocal - switch Aprende programación con ejercicios Java

import java.util.*;
public class Main
{
	public static void main(String[] args)
	{
		char symbol;

		System.out.print("Enter a symbol: ");
		symbol = (char)new Scanner(System.in).nextLine();

		switch (symbol)
		{
			case 'a':
			case 'e':
			case 'i':
			case 'o':
			case 'u':
				System.out.println("It's a lowercase vowel.");
				break;
			case '0':
			case '1':
			case '2':
			case '3':
			case '4':
			case '5':
			case '6':
			case '7':
			case '8':
			case '9':
				System.out.println("It's a digit.");
				break;
			default:
				System.out.print("It's another symbol.");
				break;
		}
	}
}