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Write a function called which_vowels_present that takes a single string parameter. Complete the function to return a list of strings indicating which vowels (a, e, i, o, and u) are present in the provided string. The case of the vowels in the original string doesn't matter, but they should be lowercase when returned as part of the list. The order of the vowels in the list doesn't matter.

Respuesta :

ijeggs

Answer:

import java.util.ArrayList;

import java.util.List;

public class Vowels {

   public static void main(String[] args) {

   String word = "I am David from Nigeria";

       System.out.println(which_vowels_present(word));

   }

   public static List which_vowels_present(String enteredWord){

       List<Character>list = new ArrayList<>();

       String word = enteredWord.toLowerCase();

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

           if (word.charAt(i) == 'a' || word.charAt(i) == 'e' || word.charAt(i) == 'i'

                   || word.charAt(i) == 'o' || word.charAt(i) == 'u') {

               list.add(word.charAt(i));

           }

       }

       return list;

   }

}

Explanation:

  • Using Java programming Language
  • Import java.util.ArrayList; and java.util.List
  • Create the method which_vowels_present which accepts a string parameter
  • Within the method create a list object
  • Use a for loop to iterate the string. within the for loop use an if statement to check individual characters of the string if any is a vowel, add it to the list
  • return the list
  • In the main method, create a test string, call the method and pass the string as parameter

Following are the program to the given question:

Program Explanation:

  • Import package.
  • Defining a class Main, inside the class main method is declared.
  • Inside the main method, a scanner class object is created that inputs string value and pass into the method "which_vowels_present".
  • In the "which_vowels_present" it takes one string parameter, inside the method list class object is created.
  • In the next step, a string variable "s" is defined that converts string value into lowercase, and define a loop that uses if block to checks "vowels" value into the string and return the "l" value.

Program:

import java.util.*;//import package

public class Main //defining a class Main

{

public static void main(String[] args)//defining main method  

{

   String s;//defining String variable  

   Scanner objc=new Scanner(System.in);//creating Scanner class object

   s=objc.next();//input value

   System.out.println(which_vowels_present(s));//printing method value

}

  public static List which_vowels_present(String w)//defining a method which_vowels_present that takes one String parameter

{

List<Character>l=new ArrayList<>();//creating list class object

   String x= w.toLowerCase();//defining a String variable x that converts parameter value into LowerCase

   for (int i =0; i<x.length(); i++)//defining a loop that  

   {

       if (x.charAt(i) == 'a' || x.charAt(i) == 'e' || x.charAt(i) == 'i'|| x.charAt(i) == 'o' || x.charAt(i) == 'u') //defining if block that checks string value include vowels

       {

           l.add(x.charAt(i));//adding value in to list

       }

  }

       return l;//return list value

}

}

Output:

Please find the attached file.

Learn more about function:

brainly.com/question/14305482

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