C# Tutorial "Final Exam for Beginner Course" : Task 6

Final Exam for Beginner Course

Task 6

Please define a new public class named Survey. This class must have an automatic public property named Title which is a string. The Title property must be set through a public consturctor that accepts the title as a parameter.

A collection of Question instances named Questions must exist with a public getter and a private setter. This must be set to a new List<Question> instance from the constructor.

The Survey class must define a public method named AddQuestion that accepts a Question parameter and adds it to the list.

The Survey class must also have a GetScore method that loops through all the questions in the Question list. The foreachloop should be used. Each score from an answer must be added to a local integer variable named total. Once all the questions have been answered, the total must be returned from the method.

using System;
using System.Collections.Generic;

public class Program
{
    public static void Main()
    {

    }
}

public abstract class Answer
{
    public int Score { get; set; }
}

public abstract class Question
{
    public string Label { get; set; }

    protected abstract Answer CreateAnswer(string input);

    protected virtual void PrintQuestion()
    {
        Console.WriteLine(Label);
    }

    public Answer Ask()
    {
        PrintQuestion();

        string input = Console.ReadLine();

        return CreateAnswer(input);
    }
}

public class TextAnswer : Answer
{
    public string Text { get; set; }
}

public class TextQuestion : Question
{
    protected override Answer CreateAnswer(string input)
    {
        return new TextAnswer { Text = input, Score = input.Length };
    }
}

// Your code here.