import java.util.*;
public class VOWELstring
{
public static void main(String args[])
{
Scanner sc = new Scanner(System.in);
System.out.println("enter a string");
String n= sc.nextLine();
int a = n.length();
int s= 0;
for(int i = 0;i<a;i++)
{
char c=n.charAt(i);
if(c=='a'||c=='e'||c=='i'||c=='o'||c=='u'||c=='A'||c=='E'||c=='I'||c=='O'||c=='U')
{
s=s+1;
}
}
System.out.println(s);
}
}
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