Thread: Set the status

So I wrote this, and it works.

 public void setStatus(int id, int area, boolean free)
    {
        Iterator<Ambulance> ab = cars.iterator();
        while(ab.hasNext()){
            Ambulance ambulance = ab.next();
            if(ambulance.getID() == id){
                ambulance.moveTo(area);
                ambulance.setBusy();
            }
        }
    }

but I have one test condition in which it does not work so how i should fix it?

 assertEquals(!oldStatus, selected.isFree());

So I have this special test condition for that "setStatus" and sometimes it works but in some condition, it does not work. And when it does not work it shows this ' assertEquals(!oldStatus, selected.isFree()); ' part of the condition does not work and I can not understand why?

  public void moveAmbulance()
    {
        // Select a random Ambulance to be moved.
        Ambulance selected = shadow.get(rand.nextInt(shadow.size()));
        int oldArea = selected.getArea();
        boolean oldStatus = selected.isFree();
        control.setStatus(selected.getID(), oldArea + 1, !oldStatus);
        assertEquals(oldArea + 1, selected.getArea());
        assertEquals(!oldStatus, selected.isFree());
    }

I did not write this method. There is no

--- Update ---

I think I fix it and now it is works

  public void setStatus(int id, int area, boolean free)
    {
        Iterator<Ambulance> ab = cars.iterator();
        while(ab.hasNext()){
            Ambulance ambulance = ab.next();
            if(ambulance.getID() == id){
                ambulance.moveTo(area);
                ambulance.setBusy();
            }
            if(free){
                ambulance.setFree();
            } else{
                ambulance.setBusy();
            }
 
        }
 
    }

--- Update ---

I need to do this, method called getNumberOfAmbulances. This one takes a single
integer parameter representing an area and returns the number of
Ambulance objects in the collection that are currently in that area.
I do not know where to start? absolutely

  /**
     * Get the number of ambulances in the given area.
     * @param area The area of the ambulances.
     * @return the number of ambulances in the given area.
     */
    public int getNumberOfAmbulances(int area)
    {
 
    }

Yes, there is.

I am trying too much and then return but I just can not it just does not work. I just can not understand it.

public int getNumberOfAmbulances(int area)
    {
        for(Ambulance ab : cars){
            if(ab.getID() == area){
                return true;
            }
        }
        return false;
    }

So I got ArraList ambulance. When the user will type area for example 1. it must return the number of the ambulances in that area.

but i am doing something wrong. because when i am trying to return false or true it says that boolean can not be converted to int.

because inside the loop i will need to check each Ambulance to see if it matches the area and, if it does, increment a counter.

 
  private ArrayList<Ambulance> cars;
 
    public AmbulanceControl()
    {
        cars = new ArrayList<Ambulance>();
 
    }
  public int getNumberOfAmbulances(int area)
    {
        for(Ambulance ab : cars){
            if(ab.getID() == area){
                return true;
            }
        }
        return false;
    }

it suppose to return the number of an ambulance in that area

it is everything what I got. The code must be in the getNumberOfAmbulance.

  private ArrayList<Ambulance> cars;
 
    public AmbulanceControl()
    {
        cars = new ArrayList<Ambulance>();
 
    }
 
  public void addAmbulance(Ambulance ambulance)
    {
        cars.add(ambulance);
    }
 
  public int getNumberOfAmbulances()
    {
        return cars.size();
    }
 
 public int getNumberOfAmbulances(int area)
    {
        for(Ambulance ab : cars){
            if(area == 0){
                return ;
            }
        }
        return area;
    }

I do not know-how. I am stuck where I should create a for each loop i just can not creat one.

than i am doing this: what should i return?

 if(ab.getID() == area){
 
            }

so i return the area:

if(ab.getID() == area){
                return area;
            }