package interviewQuestions;

import java.util.HashMap;

import java.util.Map;

import java.util.Map.Entry;

import java.util.stream.Collectors;

public class FindVowels {

public static void main(String[] args) {

String str="AlertEnterprise";

findVowels(str);

// findVowels1(str);

}

static void findVowels(String s) {

Map<Character,Integer> map= new HashMap<>();

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

Character c=s.charAt(i);

if((c.equals('A')) || (c.equals('E')) || (c.equals('I')) || (c.equals('O')) || (c.equals('U'))) {

map.put(c, map.getOrDefault(c,0)+1);

}

}

for (Entry<Character,Integer> entry: map.entrySet()){

System.out.println("Character: " + entry.getKey()

+ " occurred in the string: " + entry.getValue() + " times" );

}

}

static void findVowels1(String s) {

s.chars()

.map(Character::toUpperCase)

.mapToObj(c -> (char) c)

.filter(c -> "AEIOU".indexOf(c) >= 0)

.collect(Collectors.groupingBy(c -> c, Collectors.counting()))

.forEach((vowel, count) -> System.out.println(vowel + "=" + count));

}

}