Read the question, write Java on the right, then Run or Check.
QuestionHint and solution stay closed until you open them
Read a word; print how many vowels (aeiou, case-insensitive).
Examples
Input
Hello
Output
2
Input
sky
Output
0
Hint
- toLowerCase and check indexOf in "aeiou".
Show correct code
Peek only after you have tried. You can still Check your own version.
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
String w = in.next().toLowerCase();
int c = 0;
for (int i = 0; i < w.length(); i++) if ("aeiou".indexOf(w.charAt(i)) >= 0) c++;
System.out.println(c);
}
}
Main.javaJava 21 · javac · Ctrl + Enter runs
ResultIdle
Run to see output. Check grades the tests.