load list of details, and display to screen.

[owz]

I am trying 2 load details about cars from a.txt file

and then display the total stock value off all cars.

public class Car 
{
  // attributes
  
  private String manufacturer;
  private String model;
  private String regNo;
  private int    year;
  private int    price;

  // constructor
  
  public Car(String newManufacturer, String model, String regNo, int year, int price)
  {
    this.manufacturer = newManufacturer;
    this.model = model;
    this.regNo = regNo;
    this.year = year;
    this.price = price;
  }

  // another constructor
  
  public Car()
  {
  }

  // mutator methods
  
  public void setManufacturer(String manufacturer)
  {
    this.manufacturer = manufacturer;
  }

  public void setModel(String model)
  {
    this.model = model;
  }

  public void setRegNo(String regNo)
  {
    this.regNo = regNo;
  }

  public void setYear(int year)
  {
    this.year = year;
  }

  public void setPrice(int price)
  {
    this.price = price;
  }

  public String getManufacturer()
  {
    return this.manufacturer;
  }

  // accessor methods
  
  public String getModel()
  {
    return this.model;
  }

  public String getRegNo()
  {
    return this.regNo;
  }

  public int getYear()
  {
    return this.year;
  }

  public int getPrice()
  {
    return this.price;
  }
  
  public String toString()
  {
    return "Car details \nManufacturer        :" + manufacturer + 
                       "\nModel               :" + model + 
                       "\nRegistration number :" + regNo +
                       "\nYear                :" + year +
                       "\nPrice               :£" + price;
  }
  
  public static void main(String[] args)
  {
    Car car = new Car("Vauxhall", "Omega 2.0 GLS", "M21VUR", 1995, 1000);
    Car car1 = new Car("rustbucket","corsa 1.6","T32brt", 1998, 2350);
    System.out.println(car+car1.toString());
  }// end of main method
}// end of class Car

this is my first class attemt with out loading in a file.

import java.io.*;

public class Motors 
{

  private Garage theGarage = null;

  public static void main ( String [] args ) throws IOException
  {
     theGarage = new Garage();
  }//main

  
}//Motors

3nd Class

import java.io.*;

public class Garage 
{
  private static final int MAX_CARS = 10;
  private Car [] carDetails = new Car[MAX_CARS];
  private int carCount = 0;
    private static final String   textFilesPath = "C:\\Documents and Settings\\owz\\Desktop\\RESIT DO NOW\\car details.txt";
   
  public Garage() throws IOException
  {
    loadCarDetails();
  }
  
  public void loadCarDetails() throws IOException
  {
    BufferedReader inputCarFile; 
    String aManufacturer;
    String aModel;
    String aRegNo;
    int aYear;
    int aPrice;
      inputCarFile = Text.open ( textFilesPath );
      for ( int i = 0; i < MAX_CARS; i++ )
      {
        carDetails[ i ] = new Car( );
      }//end for

    
  }// end of loadCarDetails method

  public void saveCarDetails() throws IOException
  {
    PrintWriter carFileOut; 
    carFileOut = Text.create(textFilesPath + "saved account details.txt");
    
    carFileOut.println( "****" );
    carFileOut.close();

    

  }// end of saveCarDetails method

  public void addCar( String aManufacturer,
                      String aModel,
                      String aRegNo,
                      int aYear,
                      int aPrice )
  {
    
    

  }//addCar

  public boolean garageFull(String aRegNo)
  {
      boolean garageFull = false;
      if (aRegNo = 11) 
  {
      garageFull = true;  
  }
    return  garageFull ;  // something true or false
    
  }//garageFull

  public void listCarDetails()
  {
    
  }// end of listCarDetails method

  public int totalStockValue()
  {
    int stockValue = 0;

    return stockValue;
  }// end of totalStockValue method

  public int getCarCount()
  {
    return this.carCount ;//something
  }//getCarCount

  public Car getCarDetail( int entry )
  {
    return ;//something
  }//getCarDetail

  

  //Other methods required


  
  public static void main(String[] args) throws IOException
  {
    Garage garage = new Garage();
    
    garage.loadCarDetails();
    
    garage.listCarDetails();

    System.out.println("The total value of car stock is £" + garage.totalStockValue());
    
    Text.showMessage("That's all folks");
    System.exit(0);
  }// end of main method
}// end of class Garage

This is the format of my text file

V40GOR
Vauxhall
Omega 2.0 CD
1998
1000
76000
L17LLL
Rover
MGF 1.8
1998
4000
45000
CW04ABC
car manufacturer 1
car model 1
2004
40000
10000
CW04XYZ
car manufacturer 1
car model 2
2004
10000
5000
****



Thanx in advance for any help.

[r035198x]

If your problem is reading files, read this thread.

[owz]

The file is not just loaded an displayed .

It is an order
String Registration Number
String Manufacturer
String Model
int Year
int Price

i plan on creating a command line interface to -

Print Stock
Add car
Sell car
Amend price
Find car details

[owz]

Help needed with importing file an displaying

This is what i have so far .Line 99 i have a missing return value, no idea what it should be.
As stated above, i am loading a txt file in an tryin 2 display 2 the screen. also calculate a total value of all cars.

 import java.io.*;

public class Garage 
{
  private static final int MAX_CARS = 10;
  private Car [] carDetails = new Car[MAX_CARS];
  private int carCount = 0;
    private static final String   textFilesPath = "C:\\Documents and Settings\\owz\\Desktop\\RESIT DO NOW\\car details.txt";
   
   
   
  public Garage() throws IOException
  {
    loadCarDetails();
  }
  
  public void loadCarDetails() throws IOException
  {
    BufferedReader inputCarFile; 
    String aManufacturer;
    String aModel;
    String aRegNo;
    int aYear;
    int aPrice;
  
      for ( int i = 0; i < MAX_CARS; i++ )
      {
        carDetails[ i ] = new Car( );
      }
      carCount = 0;
  
  inputCarFile = Text.open (textFilesPath);
      aManufacturer =Text.readString(inputCarFile);
      while (aManufacturer.equals ("****") == false)
      { 
        aModel = Text.readLine(inputCarFile);
        aRegNo = Text.readLine(inputCarFile);
        aYear = Text.readInt(inputCarFile);
        aPrice = Text.readInt(inputCarFile); 
        this.addCar(aManufacturer,aModel,aRegNo,aYear,aPrice);
    }
    
      inputCarFile.close();
      
      //end for

    
  }// end of loadCarDetails method

  public void saveCarDetails() throws IOException
  {
    PrintWriter carFileOut; 
    carFileOut = Text.create(textFilesPath + "saved account details.txt");
    
    carFileOut.println( "****" );
    carFileOut.close();

    

  }// end of saveCarDetails method

  public void addCar( String aManufacturer,String aModel,String aRegNo,
                        int aYear,int aPrice )
  {
    this.addCar(aManufacturer,aModel,aRegNo,aYear,aPrice);
    
    

  }//addCar

  public boolean garageFull()
  {
     
      return  false ; 
  
  // something true or false
    
  }//garageFull

  public void listCarDetails()
  {
    
  }// end of listCarDetails method

  public int totalStockValue()
  {
    int stockValue = 0;

    return stockValue;
  }// end of totalStockValue method

  public int getCarCount()
  {
    return this.carCount ;//something
  }//getCarCount

  public Car getCarDetail(int entry  )
  {
    return  ;
    //something
  }//getCarDetail

  

  //Other methods required probly
public Car setCarDetail()
{
  
}
  
  public static void main(String[] args) throws IOException
  {
    Garage garage = new Garage();
    
    garage.loadCarDetails();
    
    garage.listCarDetails();

    System.out.println("The total value of car stock is £" + garage.totalStockValue());
    
    Text.showMessage("That's all folks");
    System.exit(0);
  }// end of main method
}// end of class Garage

[r035198x]

Hold on here. You don't have to keep on posting more code.
Did you read that thread that I pointed to on how to read a text file?

P.S The missing return thing is because you specified that method to return a Car object and yet did not return anything;

[owz]

sorry for double posting, i was tryin 2 edit the 1st post but i couldnt.
yes i did read the link info.It not just loadin an display, it has 2 be stored sum how mabey an array so tha i can use a command line interface type thing to sort,add, delet,save an so forth 2 the data.

[r035198x]

sorry for double posting, i was tryin 2 edit the 1st post but i couldnt.
yes i did read the link info.It not just loadin an display, it has 2 be stored sum how mabey an array so tha i can use a command line interface type thing to sort,add, delet,save an so forth 2 the data.

If you read that thread well, then you'll realize that all you need to do is to change the part that prints the data read from the readLine method to direct those strings to an ArrayList of Strings or to create a Car object first then load cars to an Arraylist. After that you can play any games you want with the arraylist.