Java Programming for find vowels character in a string

import java.io.*;
import java.lang.*;
public class VowelsExample {

    public static void main(String[] args) throws IOException {
       BufferedReader input = new BufferedReader (new InputStreamReader(System.in));

       int count = 0;
       int i;
       char[] vowel= {'a','e','i','o','u','A','E','I','O','U'};
        System.out.println("Enter a string :");
        String in = input.readLine();

            for (i=0; i<in.length(); i++){
             vowel[in.length()] = in.charAt(i);
            if(vowel[in.length()]=='a' || vowel[in.length()]=='A' || vowel[in.length()]=='e' || vowel[in.length()]== 'E' || vowel[in.length()]=='i' || vowel[in.length()]=='I' || vowel[in.length()]=='o' || vowel[in.length()]=='O' || vowel[in.length()]=='u' || vowel[in.length()]=='U')
            count ++;
            }
            System.out.println(in.contains(in));
            System.out.println(String.valueOf(vowel));
            System.out.println("total vowels are : " +count);

    }
}