1.4-Software-Development-Principles

Terminology

In this exercise, you’ll answer some (theoretical) questions about a given bit of code.

Assume this class Terminology is provided:

import java.util.Random;
import java.util.Scanner;

public class Terminology {

    String answer;
    int age;

    public static void main(String[] args) {
        Terminology terminology = new Terminology();
        terminology.start();
    }

    public void start() {
        Scanner scanner = new Scanner(System.in);
        System.out.println("Give your name");
        answer = scanner.nextLine();
        System.out.println("Answer");
        System.out.println("Give your age");
        age = scanner.nextInt();
        if (age >= 18) {
            System.out.println("You are allowed to vote");
        } else {
            int waitToVote = 18 - age;
            System.out.println("You will have to wait" + waitToVote + " years to vote");
            String country = getCountryByIp();
            if (age >= 16 && age < 18 && getCountryByIp().equals("USA")) { // <----------- This line!!!
                System.out.println("But you are allowed to drive a car");
            } else {
                System.out.println("Alas are not yet allowed o drive a car in " + country);
            }
        }
    }

    /**
     * Mock functions to get the country based on the IP address
     *
     * @return the country based on the current IP address
     */
    public String getCountryByIp() {
        String[] countries = {"USA", "NL", "DE", "Uk", "TR", "MA"};
        int selected = new Random().nextInt(6);
        return countries[selected];
    }

}

Questions

Answer the following questions and write them down (so you can discuss them later).

1. How many statements does the class Terminology have?
2. How many expressions does the class Terminology have?
3. How many conditional statements does the class Terminology have?
4. What are the declarations from the class Terminology?
5. Assume the name Anthony and the age 17 is entered during the execution of this program. What is the state of the application at the indicated line (the arrow in code)?