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Question4.java

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import java.io.*;

import java.util.*;

public class Question4{

public static void main(String[] args) {

int c=0;

try{

InputStreamReader r=new InputStreamReader(System.in);

BufferedReader br=new BufferedReader(r);

String s1 = br.readLine();

//Write your code here to count the number of vowels in the string "s1"

s1 = s1.toLowerCase();

for(int i=0;i<s1.length();i++){

char word = s1.charAt(i);

if(word =='a' || word =='e' || word=='i' || word=='o' || word == 'u'){

c=c+1;

}

}

System.out.println(c);

}

catch (Exception e){

System.out.println(e);

}

}

}