Finding total no of vowels in a String

 import java.util.*;

public class PrintVowel{

public static void main(String args[]){

Scanner sc = new Scanner(System.in);

System.out.println("Enter the String");

String str = sc.nextLine();

System.out.println("No of vowel in the given String is : "+count_Vowel(str));

}

//Methods

public static int count_Vowel(String str){

int counter=0;

for(int i=0;i<str.length();i++){

if(str.charAt(i)=='a' ||str.charAt(i)=='e' ||str.charAt(i)=='i'

||str.charAt(i)=='o' ||str.charAt(i)=='u' ||

str.charAt(i)=='A'|| str.charAt(i)=='E' ||str.charAt(i)=='I'

||str.charAt(i)=='O' ||str.charAt(i)=='U'){

counter = counter+1;

}

}

return counter;

}

}