SupportSystem Tugas 5

import java.util.Scanner;
import java.util.Random;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;

/**
 * This class implements a technical support system. It is
 * the top-level class in this project. The support system
 * communicates via text input/output in the text terminal.
 * This class uses an object of class InputReader to read
 * input from the user and an object of class Responder to
 * generate responses.
 * It contains a loop that repeatedly reads input and
 * generates output until the user wants to leave.
 *
 * @author Muhammad Naufaldillah
 * @version 16 November 2020
 */
public class SupportSystem
{
    private InputReader reader;
    private Responder responder;

    /**
     * Creates a technical support system
     */
    public SupportSystem()
    {
        reader = new InputReader();
        responder = new Responder();
    }

    /**
     * Start the technical support system. This will print a
     * welcome message and enter into a dialog with the user,
     * until the user ends the dialog.
     */
    public void start()
    {
        boolean finished = false;

        printWelcome();

        while(!finished)
        {
            HashSet<String> input = reader.getInput();

            if (input.contains("bye"))
            {
                finished = true;
            }
            else
            {
                String response = responder.generateResponse(input);
                System.out.println(response);
            }
        }
        printGoodbye();
    }

    /**
     * Print a welcome message to the screen.
     */
    private void printWelcome()
    {
        System.out.println(
            "Welcome to the DodgySoft Technical Support System.");
        System.out.println();
        System.out.println(
            "Please tell us about your problem.");
        System.out.println(
            "We will assist you with any problem you might have.");
        System.out.println(
            "Please type 'bye' to exit our system.");
    }

    /**
     * Print a welcome message to the screen
     */
    private void printGoodbye()
    {
        System.out.println("Nice talking to you. Bye. . .");
    }
}