Likes.java

/**
 * Created by shail on 03/04/17.
 */
public class Likes {
    public static String likes1(String[] people){
        if(people.length == 0)
            return "No one likes this";

        else if(people.length == 1)
           return people[0] + " likes this";

        else {
            StringBuilder sb = new StringBuilder();

            for(int i = 0; i < people.length - 2 ; i++)
                sb.append(people[i] + ", ");

            sb.append(people[people.length-2] + " ");

            sb.append("and " + people[people.length-1] + " like this");

            return sb.toString();
        }
    }

    public static void main(String args[]){
        //empty array
        System.out.println(likes1(new String[] {}));
      
        //One element in array
        System.out.println(likes1(new String[] {"Shail"}));
      
        //Two elements in array
        System.out.println(likes1(new String[] {"Shail", "Priyanka"}));
      
        //Three elements in array
        System.out.println(likes1(new String[] {"Shail", "Priyanka", "Kalpita"}));
      
        //Four elemnets in array
        System.out.println(likes1(new String[] {"Shail", "Priyanka", "Kalpita", "Rabab"}));
    }
}