Question

java code

need this part java code

There is one public constructor: public Backpacker (int initialFunds, City initialCity) Constructs a Backpacker starting out with the given amount of money in the given city. The journal is initially a string consisting of "cityname(start)", where cityname is the name of the starting city. There are the following public methods: public String getCurrentCity ( ) Returns the name of the Backpacker's current city. public int getCurrentMoney () Returns the amount of money the Backpacker currently has. public String getJournal() Returns the Backpacker's journal. The journal is a string of comma-separated values of the form cityname(number_of_nights) containing the cities visited by the Backpacker, in the order visited, along with the number of nights spent in each. The first value always has the form cityname(start) for the starting city. For example, if a Backpacker starts in Paris, spends 5 nights in Rome, and then spends 2 nights in Prague, the journal string would be: Paris (start), Rome (5), Prague (2). public boolean is SOL() Returns true if Backpacker doesn't have enough money to send postcard from the current city. public int getNightsInStation () Returns the number of nights the Backpacker has spent in a train station when visiting a city without enough money for hostels.

here is test

Answer 1

// Main Class - BackpackerTest

public class BackpackerTest {
   public static void main(String[] args) {
      
       City paris = new City("Paris", 75);
       City rome = new City("Rome", 50);
      
       Backpacker t = new Backpacker(500, paris);
       System.out.println(t.getCurrentCity());
       System.out.println(t.getCurrentJournal());
       System.out.println(t.getCurrentMoney());  
      
       t.visit(rome,2);
       System.out.println(t.getCurrentCity());
       System.out.println(t.getCurrentJournal());  
       System.out.println(t.getCurrentMoney());  
      
      
       t.visit(paris,7);
       System.out.println(t.getCurrentMoney());
       System.out.println(t.getNightsInStation());
      
       t.visit(paris,7);
       System.out.println(t.getCurrentMoney());
       System.out.println(t.getNightsInStation());
      
       t.sendPostCardHome(1);
       System.out.println(t.getCurrentMoney());
      
       t.sendPostCardHome(12);
       System.out.println(t.getCurrentMoney());
      
       System.out.println(t.isSol());               //Expected True.
      
       t.callHomeForMoney();
       System.out.println(t.getCurrentMoney());
   }

}

// Backpacker Class -

public class Backpacker {

   public static int current_fund;
   public static int initial_fund;
   public static int number_of_nights;
   public static int number_of_nights_wo_money_t = 0;
   public static int number_of_nights_wo_money = 0;
   public static String current_city;
   public static String current_jouranal;
   public boolean journey_started = false;
   public int current_city_cost;
   public static int paris_postcard_cost = 4;
   public static int sympathy_factor = 30;
   public static int total_cards ;

   // Main Method
   public static void main(String[] args) {

   }

   // Constructor of class which initializes the City and Funds.
   public Backpacker(int initialFunds, City initialCity) {

       // Initialize current funds to initial funds
       current_fund = initialFunds;

       // Initialize current city to Initial City.
       current_city = initialCity.city_name;

       // Initial Funds for city

       current_city_cost = initialCity.city_cost;

       // Initialize No Of Nights.
       number_of_nights = 0;
   }

   // Return current City.
   public String getCurrentCity() {
       return current_city;

   }

   // Return Current amount of money.
   public int getCurrentMoney() {
       return current_fund;
   }

   // Get Journal
   // public String[] getJournal(){

   // }

   public boolean isSol(){
       //Initialize local variable.
       boolean sol = false;
      
       if (current_city == "Paris") {
           if (paris_postcard_cost > current_fund) {
               sol = true;
           } else {
               sol = false;
           }
       }
       return sol;
   }

   // Method to return Journal.
   public String getCurrentJournal() {

       // If No of nights not initialized add CityName(Start) to Journal Entry.
       if (number_of_nights == 0) {

           current_jouranal = current_city + "(Start)";
       }

       // If No of nights initialized then add CurrentCityName and Number_of_nights to
       // Journal Entry.
       else {

           current_jouranal = current_jouranal + "," + current_city + "(" + number_of_nights + ")";
       }

       return current_jouranal;

   }

   // Assign current City and No of Nights.
   public void visit(City city, int no_of_nights) {

       current_city = city.city_name;

       number_of_nights = no_of_nights;

       current_city_cost = city.city_cost;

       if (current_city_cost * no_of_nights > current_fund) {

           int possible_nights = current_fund / current_city_cost;

           number_of_nights_wo_money = number_of_nights - possible_nights;

           current_fund = current_fund - possible_nights * city.city_cost;
       }

       else {
           current_fund = current_fund - number_of_nights * city.city_cost;
       }

   }

   // Return the number of nights the Backpacker has spent in Train wihtout money
   public int getNightsInStation() {
       number_of_nights_wo_money_t = number_of_nights_wo_money_t + number_of_nights_wo_money;
       return number_of_nights_wo_money_t;
   }

   public void sendPostCardHome(int no_of_cards) {

       if (current_city == "Paris") {
           int cost = paris_postcard_cost * no_of_cards;

           int max_cards = current_fund / paris_postcard_cost;

           if (max_cards < no_of_cards) {

               cost = paris_postcard_cost * max_cards;
              
               total_cards = total_cards + max_cards;
           }
           else
           {
               total_cards = total_cards + no_of_cards;
           }
          
           current_fund = current_fund - cost;
       }
   }
  
   public void callHomeForMoney() {
      
       //Money from home is n time ( no of cards) * sypmathy factor.
       int home_money = total_cards * sympathy_factor;
      
       current_fund = current_fund + home_money;
   }

}

// Class City  

public class City {
  
   public String city_name;
   public int city_cost;
  
   public static void main(String[] args) {
       // TODO Auto-generated method stub
      
   }
  
   public City( String s, int f) {
       city_name = s;
       city_cost = f;
   }
}

******************************************************************************************************************************************

Code Screenshots

// Code in Left Panel , Output in Right Panel

Hello.java D Factorial.java ob PrintStream.class Test.java Backpacker Test.java X Backpacker.java o e Console x 2 Problems D Debug Shell 2 public class BackpackerTest { public static void main(String[] args) { City paris = new City ("Paris", 75); City rome = new City ("Rome", 50); <terminated> Backpacker Test [Java Application] C:\Program Files\Java\jdk-13.0.2\bin Paris Paris (Start) 500 Rome Paris(Start), Rome (2) 400 Backpacker t = new Backpacker(500, paris); System.out.println(t.getCurrentCity()); System.out.println(t.getCurrentJournal(); System.out.println(t.getCurrentMoney ()); 25 25 t.visit(rome, 2); System.out.println(t.getCurrentCity()); System.out.println(t.getCurrentJournal()); System.out.println(t.getCurrentMoney ()); true 181 manonood nas t.visit(paris,7); System.out.println(t.getCurrentMoney(); System.out.println(t.getNightsInStation()); t.visit(paris,7); System.out.println(t.getCurrentMoney()); System.out.println(t.getNightsInStation()); t.sendPostcardHome (1); System.out.println(t.getCurrentMoney()); t.sendPostcardHome (12); System.out.println(t.getCurrentMoney ()); System.out.println(t.issol()); //Expected True. 10AZMA Writable Smart Incort 10.51.292