Question

Complete class Cow so that it has:

(a) an int attribute to hold a number of legs,
(b) a constructor that takes one parameter, a number of legs (c) a getter method for the attribute
(d) a method to convert any instance of Cow to a string

    class Cow{
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        Cow(________________________){
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        }
        ____ getNumLegs(){
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        }
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}

public class MinOfSet {

    /**
     * Write a method (use the code provided) that takes

     * a collection of Cows and
     * returns the Cow that has the minimum number of legs.
     * Assume the collection contains at least one cow.
     */

    public static Cow minCow(Collection<Cow> herd){

        Cow answer = null;
        Iterator<Cow> icow = herd.iterator();

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}

public static void main(String[] args) {

//Put two cows in the herd and then print the cow with minimum legs
Collection<Cow> herd = new HashSet<>();
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Answer 1

import java.util.Collection;
import java.util.HashSet;
import java.util.Iterator;

class Cow {
   private int numLegs;

   //constructor
   public Cow(int aNumLegs) {
       super();
       numLegs = aNumLegs;
   }
//getter
   public int getNumLegs() {
       return numLegs;
   }
//tostring
   public String toString() {
       return "Cow [Num of Legs : " + numLegs + "]";
   }

}

public class MinOfSet {
   public static Cow minCow(Collection<Cow> herd) {
       Cow answer = null;
       Iterator<Cow> icow = herd.iterator();
       Cow temp = null;
       answer = icow.next();
       //iterating objects from set
       while (icow.hasNext()) {
           //checking if cow has less legs than other
           // if yes swap
           temp = icow.next();
           if (temp.getNumLegs() < answer.getNumLegs())
               answer = temp;
       }
       return answer;
   }
   public static void main(String[] args) {
       Collection<Cow> herd = new HashSet<>();
       //creating and adding cow object to hasset
       herd.add(new Cow(3));
       herd.add(new Cow(4));
       System.out.println(minCow(herd));
   }
}

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