Calculate The Vowels In The Given String Using Java

// Vowels program

import java.io.*;
import java.lang.String.*;
import java.text.*;

class ssva26
{
    public static void main(String arg[]) throws IOException
    {
        String str;
        char s;
        int ch=0,l;
        BufferedReader inp = new BufferedReader(new InputStreamReader(System.in));
        System.out.println("\n\t\t\t\tCount the Vowels");
        System.out.println("\n\t\t\t\t~~~~~~~~~~~~~~~~");
        System.out.print("\nEnter the String:  ");
        str = inp.readLine();
        l=str.length();
        for(int i=0;i<l;i++)
        {
            s=str.charAt(i);
            if( (s=='a') || (s=='e') || (s=='i') || (s=='o') || (s=='u') )
            ch++;
        }
        System.out.println("\nNumber of vowels:  " + ch);
    }
}