Question

Write a method which takes string as an argument and extracts all words of length between 4 to 5 and contains vowels in it. Method returns an array of type string containing words which satisfied above criteria. Show these words in main(). using c#  

Answer 1

First we split the string into words, and then store those words in a List. Iterate over every word, and check for vowels, and for length, if both the conditions are satisfied, then add it into the resultant array.

CODE SNAPSHOTS:

OUTPUT SNAPSHOTS:

CODE:

using System;
using System.Collections.Generic;

class Sample {
    public static List<string> calc(string str){
    string[] word = str.Split(' ');
    List<string> a = new List<string>();
    for(int it=0;it<word.Length;it++){
      // see if vowels present
    bool isVowel = word[it].Contains("a")||word[it].Contains("e")||
                        word[it].Contains("i")||word[it].Contains("o")||
                        word[it].Contains("u")||word[it].Contains("A")||
                        word[it].Contains("E")||word[it].Contains("I")||
                        word[it].Contains("O")||word[it].Contains("U");
      // length should be 4 or 5
      bool isLength = word[it].Length == 4 || word[it].Length == 5;
    // if both satisfied, then add  
      if( isVowel && isLength  ){
        a.Add(word[it]);
      }
    }
    return a;
  }
  public static void Main (string[] args) {
    string str = "hello this is the string we are using, for vowels test gfhtrykj ";
    List<string> res = calc(str);
    Console.WriteLine("{0}", string.Join(", ", res));
  }
  
}

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