Question

JAVA JAVA JAVA

Hey i need to find a java code for my homework, this is my first java homework so for you i don't think it will be hard for you. (basic stuff)

the problem:

Write a complete Java program

The transport Company in which you are the engineer responsible of operations for the optimization of the autonomous transport of liquid bulk goods, got a design contract for an automated intelligent transport management system that are autonomous trucks which transport liquid bulk goods (urea, dust suppressants, acids, gasoline, milk, etc.), forming part of customer orders.

After loading at a centralized distribution center, the trucks move autonomously to the delivery points. After loading at a centralized distribution center, the trucks move autonomously to the delivery points.

The management of this automated intelligent transport management system is based on the following entities:

1) Goods stored at the centralized distribution center (Trois-Rivières).

2) Autonomous trailer trucks (tanks)

3) Orders of goods transported by autonomous trucks

4) Customers

5) Freight transport routes

6) Destination cities (delivery cities)

From lists of goods ordered from customers, a clerk generates delivery routes that send autonomous trucks pre-loaded with liquid goods transported by tanker.

The characteristics of each entity are:

• Merchandise:
  • Merchandise number
  • Description (ex: urea, dust suppressant, sodium hypochlorite, ethylene glycol, propylene glycol, acid, milk, etc.)
  • Volume in stock (liter)
  • example
  • Merchandise.dat
  • 1, acid, 350000
    2, urea, 1000000
    3, milk, 2000000
• Trucks:

• Truck number
• Transport capacity (liter ex: 35,000, 25,000, 15,000, 10,000)
• Autonomy Range (distance km)
• example:
• trucks.dat
• 1, 35000, 600
  2, 10000, 1000
  3, 20000, 800
  4, 35000, 600

• Orders :

• Order number
• Client number
• Commodity Number
• Volume (liter)
• Delivery city
• exemple;
• orders.dat:
• 1, 1, 1, 35000, Miami
  2, 3, 2, 70000, :Los angeles
  3, 2, 3, 25000, New York
  4, 4, 1, 105000, Chicago

• Clients :

• Client number
• City

• Routes:

• Trip number
• Truck number
• Number of different clients
• Client number
• Commodity number
• Volume delivered

• Delivery cities:

• City number
• Name

Stages of realization: THE QUESTION !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1

1. Write the implementation of the classes Merchandise, Customers, Trucks, Orders, Cities and Trips: for each of the classes, we propose to define the constructor of the class which makes it possible to load the existing data from Merchandise.dat, Customers.dat, Trucks.dat, Orders.dat, Trips.dat, Cities.dat files and at least one method for displaying the characteristics of a particular object from each of these classes.
2. Write a main program (main method) which:

• Allows you to add, delete, modify information, update data on disks (.dat files) on Goods, Customers, Trucks, Orders, Cities and Routes.
• Allows you to display all the characteristics of the journeys made.

Also displays information about Merchandises, orders, customers, trucks, cities.

• To do this you can use a menu in your main () function which allows you to select the operations (eg: additions, deletions, modifications, displays).

Your application must take into account the handling of errors (exceptions).

Answer 1

Hi,

Here's my code for the same,

import java.util.*

//Defining a class of all functionalities.

Public class transport{

String Goods;

String Customers;

String Trucks;

String Orders;

String Cities;

String Routes;

Transport(String filename){//file-read operation

Scanner reader = new Scanner(new FileInputStream(filename);
  

while (reader.hasNext()) { //getting data
Goods = reader.next();

Customers = reader.next();

Trucks = reader.next();

Orders = reader.next();

Cities = reader.next();

Routes = reader.next();

}

}

//Getters and setters

Public getGoods{

return Goods;

}

Public deleteGoods{

Goods = null;

}

Public setGoods(String a){

Goods = a;

}

Public getCustomers{

return Customers;

}

Public deleteCustomers{

Customers = null;

}

Public setCustomers(String b){

Customers = b;

}

Public getTrucks{

return Trucks;

}

Public deleteTrucks{

Trucks = null;

}

Public setTrucks(String c){

Trucks = c;

}

Public getOrders{

return orders;

}

Public deleteOrders{

Orders = null;

}

Public setOrders(String d){

Orders = d;

}

Public deleteOrders{

Orders = null;

}

Public getCities{

return Cities;

}

Public deleteCities{

Cities = null;

}

Public setCities(String e){

Cities = e;

}

Public getRoutes{

return Routes;

}

Public deleteRoutes{

Routes = null;

}

Public setRoutes(String f){

Routes = f;

}

public static void main(String[] args){//driver method

Transport(file.txt)
getRoutes;
setRoutes(abc);

}
writeoperation{//save operation

try{

FileWriter fw=new FileWriter(filename);

fw.write(Goods + "," + Customers + "," + Trucks + "," + orders + "," + cities + "," + routes);

fw.close();

}

catch(Exception e){

System.out.println(e);

}

System.out.println("Success...");

}

}

Thank you :)