JAVA
java
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public class Program
{
public static void main(String[] args) {
Exam ex = new Exam();
char c[] = {'r', 'a', 'y', 'u', 't'};
System.out.println(ex.show(c, 0));
}
}
public class Exam{
public int show(char c[], int n){
int cont = 0;
if(n < c.length){
switch(c[n]){
case 'a':
cont++;
show(c, n + 1);
break;
case 'e':
cont++;
show(c, n + 1);
break;
case 'i':
cont++;
show(c, n + 1);
break;
case 'o':
cont++;
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OUTPUT
Run