java vowel counter

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package javaapplication4;
import java.util.Scanner;
/**
 *
 * @author pclab
 */
public class JavaApplication4 {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
    Scanner kb = new Scanner(System.in);
    String line;
    char read;
    int v=0, nv=0, len,i;
    System.out.println("Enter any word ");
    line=kb.nextLine();
    len=line.length();
    for(i=0;i<line.length();i++)
    {
    switch(line.charAt(i))
    {case 'a':
        case'A':
            case'e':
                case'E':
                    case'i':
                        case'I':
                            case'o':
                                case'O':
                                    case'u':
                                        case'U':
                                            v++;
                                            break;
                                        default:
                                            nv++;

    }
    }
    System.out.println("Vowels "+v);
    System.out.println("NVowels "+nv);


    }


}