[checho]

Hi, i am having problems with this assignment, The Bashemin Parking Garage contains a single lane that can hold up to ten cars. Arriving cars enter the garage at the rear and are parked in the empty space nearest to the front. Departing cars exit only from the front.

If a customer needs to pick up a car that is not nearest to the exit, then all cars blocking its path are moved out temporarily, the customer's car is driven out, and the other cars are restored in the order they were in originally. Whenever a car departs, all cars behind it in the garage are moved up one space.

Write a Java program to operate the garage.

The program will read and process lines of input from a file until end-of-file. Each input line contains a license plate number and an operation (ARRIVE or DEPART), separated by spaces. Cars arrive and depart in the order specified by the input. Each input operation must be "echoed" to an output file, along with an appropriate message showing the status of the operation.

 When a car arrives, the message will include the license number and state whether the car is being parked or turned away because the garage is full. If the garage is full, the car leaves without ever having entered the garage.

 When a car departs, the message will include the license number and the number of times the car was moved.

The number of moves does not include the one where the car departs from the garage, or the number of times the car was moved within the garage. It is only the number of times it was moved out of the garage temporarily to allow a car behind it to depart.

If a DEPART operation calls for a car that is not in the garage, the message should so state.


this is the code for the Garage class

import java.io.FileNotFoundException;

import java.util.StringTokenizer;


public class Garage {

    private Car[] garage;
    //private int size=10;
    private int count = 0;
    private String plate;
    private String action;

    public Garage() {
        garage = new Car[10];
    }

    public void readData(String fileName) throws FileNotFoundException {
        StringTokenizer st = new StringTokenizer(fileName);
        plate = st.nextToken();
        action = st.nextToken();
        System.out.println("I just read " + plate + " " + action);
    }

    public void arrive() {

        if (count == 0&&action.equals("ARRIVE")) {
            garage[count] = new Car(plate);
            System.out.println(plate + " has been parked.");


            count++;
        } else if (count < 10&&action.equals("ARRIVE")) {
            garage[count] = new Car(plate);
            System.out.println(plate + " has been parked.");


            count++;
        } else if(count==10&&action.equals("ARRIVE")) {
            System.out.println("We're sorry " + plate + ", at the moment we are full");
        }

    }

    public void depart() {

        boolean found = false;
        int index;
        index = 0;
        for (int i = 0; i < garage.length; i++) {
            if (garage[i].toString().equals(plate)) {
                found = true;

            }
            index = i;
            break;
        }

        if (found) {
            if (index == 0) {
                Car[] temp = new Car[10];
                System.arraycopy(garage, 1, temp, 0, 9);
                garage = temp;
                System.out.println("Car " + plate + " have been removed");
                count--;
            } else {
                for (int a = 0; a < index; a++) {
                    garage[a].movedOutTemporarily();
                }
                Car[] temp = new Car[10];
                System.arraycopy(garage, 0, temp, 0, index - 1);
                System.arraycopy(garage, index + 1, temp, index, (garage.length - 1) - index);
                System.arraycopy(temp, 0, garage, 0, garage.length);
                count--;
                System.out.println("Car " + plate + " have been removed");
            }
        } else {
            System.out.println("We're sorry " + plate + ", has not parked in this garage");
        }


    }
}

this is the code for the Car class

public class Car {

    private String licensePlate;
    private int numberOfMoves;

    public Car(String licenseNum) {
        this.licensePlate = licenseNum;
    }
    
    

    public int getNumberOfMoveS() {
        return numberOfMoves;
    }

    public void movedOutTemporarily() {
        numberOfMoves++;
    }
    
    @Override
    public String toString() 
    {
        // Do not modify this method
        return licensePlate.toString() ;  // note: calls inherited toString method
    }
}

this is the code for the tester class

public class Tester {

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

        File myFile = new File("C:\\Users\\Documents\\NetBeansProjects\\HW2\\garage.txt");
        FileReader fileReader = new FileReader(myFile);
        
        BufferedReader reader = new BufferedReader(fileReader);
            
            String line;
            while ((line = reader.readLine()) != null) {
                javaGarage.readData(line);

                StringTokenizer st = new StringTokenizer(line);
                String plate = st.nextToken();
                String action = st.nextToken();
            switch (action) {
                case "ARRIVE":
                    javaGarage.arrive();
                    break;
                case "DEPART":
                    javaGarage.depart();
                    break;
            }
            }
         
        }

this is the text for the text file
JAV001 ARRIVE
JAV002 ARRIVE
JAV003 ARRIVE
JAV004 ARRIVE
JAV005 ARRIVE
JAV001 DEPART
JAV004 DEPART
JAV006 ARRIVE
JAV007 ARRIVE
JAV008 ARRIVE
JAV009 ARRIVE
JAV010 ARRIVE
JAV011 ARRIVE
JAV012 ARRIVE
JAV013 ARRIVE
JAV014 ARRIVE
JAV006 DEPART
JAV014 DEPART
JAV013 DEPART
JAV005 DEPART
JAV015 ARRIVE
JAV010 DEPART
JAV002 DEPART
JAV015 DEPART
JAV013 DEPART
JAV009 DEPART
JAV003 DEPART
JAV008 DEPART
JAV007 DEPART
JAV012 DEPART
JAV011 DEPART

this is the output that i get
run:
I just read JAV001 ARRIVE
JAV001 has been parked.
I just read JAV002 ARRIVE
JAV002 has been parked.
I just read JAV003 ARRIVE
JAV003 has been parked.
I just read JAV004 ARRIVE
JAV004 has been parked.
I just read JAV005 ARRIVE
JAV005 has been parked.
I just read JAV001 DEPART
Car JAV001 have been removed
I just read JAV004 DEPART
We're sorry JAV004, has not parked in this garage
I just read JAV006 ARRIVE
JAV006 has been parked.
I just read JAV007 ARRIVE
JAV007 has been parked.
I just read JAV008 ARRIVE
JAV008 has been parked.
I just read JAV009 ARRIVE
JAV009 has been parked.
I just read JAV010 ARRIVE
JAV010 has been parked.
I just read JAV011 ARRIVE
JAV011 has been parked.
I just read JAV012 ARRIVE
We're sorry JAV012, at the moment we are full
I just read JAV013 ARRIVE
We're sorry JAV013, at the moment we are full
I just read JAV014 ARRIVE
We're sorry JAV014, at the moment we are full
I just read JAV006 DEPART
We're sorry JAV006, has not parked in this garage
I just read JAV014 DEPART
We're sorry JAV014, has not parked in this garage
I just read JAV013 DEPART
We're sorry JAV013, has not parked in this garage
I just read JAV005 DEPART
We're sorry JAV005, has not parked in this garage
I just read JAV015 ARRIVE
We're sorry JAV015, at the moment we are full
I just read JAV010 DEPART
We're sorry JAV010, has not parked in this garage
I just read JAV002 DEPART
Car JAV002 have been removed
I just read JAV015 DEPART
We're sorry JAV015, has not parked in this garage
I just read JAV013 DEPART
We're sorry JAV013, has not parked in this garage
I just read JAV009 DEPART
We're sorry JAV009, has not parked in this garage
I just read JAV003 DEPART
Car JAV003 have been removed
I just read JAV008 DEPART
We're sorry JAV008, has not parked in this garage
I just read JAV007 DEPART
We're sorry JAV007, has not parked in this garage
I just read JAV012 DEPART
We're sorry JAV012, has not parked in this garage
I just read JAV011 DEPART
We're sorry JAV011, has not parked in this garage
BUILD SUCCESSFUL (total time: 0 seconds)

[rodiongork]

Hi, i am having problems with this assignment

I fear you forgot to tell what kind of problems you have exactly, so it is not clear what you are asking for.

Also note that code should be wrapped in (code)...(/code) tags - only use square brackets - to be formatted.

[checho]

Originally Posted by rodiongork

I fear you forgot to tell what kind of problems you have exactly, so it is not clear what you are asking for.

Also note that code should be wrapped in (code)...(/code) tags - only use square brackets - to be formatted.

Thank you, I wrapped the code(this is my first post ever in a forum ). The problem is that it is supposed to check if the strings from the input are already in the garage, bur after the code gets to remove JAV001, and it does, from that point and on it checks only for JAV002 DEPART even though the input from the text file ask for JAV004 DEPART to be remove, so it does that and when it encounters JAV004 in the garage it is not removed, and the same happens till the end of file.

[NormR]

Try debugging the depart() method by using the println() method to print out the data that the code is looking at to see why a match is not found. What tests are not doing what you want them to do?
For example if this was the code doing the tests:
if (x == y)
then print out the values of x and y just before that statement:
System.out.println("x="+x +", y="+y);