Question

In Java, write classes the following different types of questions:

1. YesNo: this can be answered in one of two ways: yes or no. answer(String) would accept only "Yes" or "No" as valid answers.

2. Essay: this can be answered in at most 140 characters, including spaces.

3. Likert: this can be answered on a fixed, 5-point Likert scale (Strongly Agree, Agree, Neither Agree nor Disagree, Disagree, Strongly Disagree). answer(String) would accept only these precise words as valid answers.

Design the data in a way that captures their similarities Create these interfaces/classes, and write appropriate constructors that allows one to create a question using it.

Answer 1

public interface IAnswer {

public String getAnswer();

}

import java.util.Scanner;

YesNo class:

public class YesNo implements IAnswer{

private String question;

public YesNo(String q){

this.question = q;

}

@Override

public String getAnswer() {

System.out.println(question);

Scanner scan = new Scanner(System.in);

String ans =scan.nextLine();

System.out.print("Answer: ");

scan.close();

if(ans.equalsIgnoreCase("yes") || ans.equalsIgnoreCase("no")){

return ans;

}else{

return "Invalid Answer";

}

}

}

Essay class:

import java.util.Scanner;

public class Essay implements IAnswer{

private String question;

public Essay(String q){

this.question = q;

}

@Override

public String getAnswer() {

System.out.println(question);

Scanner scan = new Scanner(System.in);

System.out.print("Answer: ");

String ans =scan.nextLine();

scan.close();

if(ans.length() <=140){

return ans;

}else{

return "Invalid Answer";

}

}

}

Likert class:

import java.util.Scanner;

public class Likert implements IAnswer{

private String question;

public Likert(String q){

this.question = q;

}

@Override

public String getAnswer() {

System.out.println(question);

Scanner scan = new Scanner(System.in);

System.out.print("Answer: ");

String ans =scan.nextLine();

scan.close();

if(ans.equalsIgnoreCase("Strongly Agree")

||ans.equalsIgnoreCase("Agree")

||ans.equalsIgnoreCase("Neither Agree nor Disagree")

|| ans.equalsIgnoreCase("Disagree")

|| ans.equalsIgnoreCase("Strongly Disagree")){

return ans;

}else{

return "Invalid Answer";

}

}

}

Main class:

public class Main {

public static void main(String[] args) {

YesNo yesno = new YesNo("Do you like coffeee?");

System.out.println(yesno.getAnswer());

}

}