BusCompany

public class BusCompany {
    private String name;
    private Bus[] buses;
    private Line[] lines;
    private Trip[] trips;

    public BusCompany(String name) {
        this.name = name;
        this.buses = new Bus[100];
        this.lines = new Line[50];
        this.trips = new Trip[1000];
    }

    public String toString() {
        int busCount=0;
        for (int i = 0; i < buses.length; i++) {
            if(buses[i] != null)
                busCount++;
        }
        int tripCount=0;
        for (int i = 0; i < trips.length; i++) {
            if(trips[i] != null)
                tripCount++;
        }
        return "The bus company " + name + " has " + busCount + " buses and " + tripCount + " trips";

    }

    public boolean addTrip(Trip trip) {
        boolean added = false;
        for(int i=0; i<trips.length && added == false; i++) {
            if(trips[i] == null) {
                trips[i] = trip;
                added = true;
            }
        }
        return added;
    }

    public boolean removeTrip(Trip trip) {
        boolean found = false;
        for(int i=0; i<trips.length && found == false; i++) {
            if(trips[i] == trip) {
                trips[i] = null;
                found = true;
            }
        }
        return found;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public boolean addBus(Bus bus) {
        boolean added = false;
        for(int i=0; i<buses.length && added == false; i++) {
            if(buses[i] == null) {
                buses[i] = bus;
                added = true;
            }
        }
        return added;
    }

    public boolean removeBus(int bus_num) {
        boolean found = false;
        for(int i=0; i<buses.length; i++) {
            if(buses[i] != null) {
                if(buses[i].getBus_name() == bus_num) {
                    found = true;
                    buses[i] = null;
                }
            }
        }
        return found;
    }
}