Developing a Comprehensive Vehicle Management System: Assignment Solution
- Instructions
- Requirements and Specifications
Instructions
Objective
Write a java assignment program to implement vehicle management.
Requirements and Specifications
Source Code
/**
* This class represents a Bus object.
* Bus that contains location and stopsPerMile
* @author NAME
* @version 1.0
*/
public class Bus extends Vehicle {
/**
* Location of the Bus
*/
private String location;
/**
* Number of stops per Mile
*/
private int stopsPerMile;
/**
* Constructor that creates a Bus object.
* Given id, numMiles, location and stopsPermile
* @param id String
* @param numMiles int
* @param location String
* @param stopsPerMile int
*/
public Bus(String id, int numMiles, String location, int stopsPerMile) {
super(id, numMiles, new String[20]);
this.location = location;
this.stopsPerMile = stopsPerMile;
}
/**
* Constructor that creates a Bus object.
* Given id, numMiles and location
* @param id String
* @param location String
*/
public Bus(String id, String location) {
super(id, 0, new String[20]);
this.location = location;
this.stopsPerMile = 2;
}
/**
* Method to check if the us can drive a given distance.
* @return boolean
*/
@Override
public boolean canDrive(int distance) {
return distance >= 0;
}
/**
* Method that calculates the cost for a travel.
* @return double
*/
@Override
public double calculateCost(int distance) {
return (canDrive(distance)) ? distance * 3 / stopsPerMile : -1;
}
/**
* Method that add passengers.
* @return boolean
*/
@Override
public boolean addPassenger(int distance, String[] names) {
if (canDrive(distance)) {
// Loop through names
for (String s: names) {
// Get index of a free seat
for (int i = 0; i < this.passengers.length; i++) {
if (this.passengers[i] == null) { // seat is free
this.passengers[i] = s;
break;
}
}
}
chargeRide(distance);
setEarnings(getEarnings() + calculateCost(distance));
return true;
} else {
return false;
}
}
/**
* Compare two bus objects.
* @return boolean
*/
@Override
public boolean equals(Object other) {
if (other == this) {
return true;
}
if (!(other instanceof Bus)) {
return false;
}
Bus otherBus = (Bus) other;
return super.equals(other) && getLocation().equals(otherBus.getLocation())
&& getStopsPerMile() == otherBus.getStopsPerMile();
}
/**
* Return a string representation of the bus.
* @return String
*/
@Override
public String toString() {
return String.format("Bus %s This bus drives around %s and "
+ "makes %d stops per mile.", super.toString(), getLocation(), getStopsPerMile());
}
/**
* Getter method for location.
* @return String
*/
public String getLocation() {
return this.location;
}
/**
* Getter method for stops per mile.
* @return int
*/
public int getStopsPerMile() {
return this.stopsPerMile;
}
/**
* Setter method for location.
* @param newLocation String
*/
public void setLocation(String newLocation) {
this.location = newLocation;
}
/**
* Setter method for stops per mile.
* @param newStopsPerMile int
*/
public void setStopsPerMile(int newStopsPerMile) {
this.stopsPerMile = newStopsPerMile;
}
}
Car
/**
* This class represents a Car object.
* Car that contains rate, fees and maxNumMiles
* @author NAME
* @version 1.0
*/
public class Car extends Vehicle {
/**
* Car rate
*/
private double rate;
/**
* One time fee
*/
private double fees;
/**
* Max number of miles
*/
private int maxNumMiles;
/**
* Constructor that creates a Car object.
* Given a id, numMiles, passengers, rate, fees and maxNumMiles
* @param id String
* @param numMiles int
* @param passengers Array of String
* @param rate double
* @param fees double
* @param maxNumMiles int
*/
public Car(String id, int numMiles, String[] passengers,
double rate, double fees, int maxNumMiles) {
super(id, numMiles, passengers);
this.rate = rate;
his.maxNumMiles = maxNumMiles;
}
/**
* Constructor that creates a Car object.
* Given a id, numMiles and maxNumMiles
* @param id String
* @param numMiles int
* @param maxNumMiles int
*/
public Car(String id, int numMiles, int maxNumMiles) {
super(id, numMiles, new String[4]);
this.rate = 10.0;
this.fees = 15.0;
this.maxNumMiles = maxNumMiles;
}
/**
* Constructor that creates a Car object.
* Given a id and set default values to all other variables
* @param id String
*/
public Car(String id) {
super(id, 0, new String[4]);
this.maxNumMiles = 200;
this.rate = 10.0;
this.fees = 15.0;
}
/**
* Method to check if the car can drive the given distance.
* @return boolean
*/
@Override
public boolean canDrive(int distance) {
return distance >= 0 && (getNumMiles() + distance) <= maxNumMiles;
}
/**
* Method to calculate the cost.
* @return double
*/
@Override
public double calculateCost(int distance) {
double cost = (canDrive(distance)) ? (fees + rate * distance) : -1;
return cost;
}
/**
* Method to add list of passengers.
* @return boolean
*/
@Override
public boolean addPassenger(int distance, String[] names) {
if (canDrive(distance)) {
// Get number of free seats
int numFree = 0;
for (int i = 0; i < this.passengers.length; i++) {
if (this.passengers[i] == null) {
numFree++;
}
}
if (numFree >= names.length) { // there are seats for everybody
for (String s: names) {
// First, get the index of the first free seat
int index = -1;
for (int i = 0; i < this.passengers.length; i++) {
if (this.passengers[i] == null) {
index = i;
break;
}
}
// Add to passengers
this.passengers[index] = s;
}
chargeRide(distance);
setEarnings(getEarnings() + calculateCost(distance));
return true;
} else {
return false;
}
} else {
return false;
}
}
/**
* Method to check if two car objects are equal.
* @return boolean
*/
@Override
public boolean equals(Object other) {
if (other == this) {
return true;
}
if (!(other instanceof Car)) {
return false;
}
Car otherCar = (Car) other;
return super.equals(other) && this.getRate() == otherCar.getRate()
&& otherCar.getFees() == this.getFees()
&& this.getMaxNumMiles() == otherCar.getMaxNumMiles();
}
/**
* Method that returns a string representation of the car object.
* @return String
*/
@Override
public String toString() {
return String.format("Car %s It can only drive %s miles."
+ " It costs %.2f dollars per mile and "
+ "there is a one-time fee of %.2f dollars", super.toString(),
getMaxNumMiles(),
getRate(),
getFees());
}
/**
* Getter method that returns the rate of the Car.
* @return double
*/
public double getRate() {
return this.rate;
}
/**
;* Getter method to return the fee.
* @return double
*/
; public double getFees() {
return this.fees;
}
/**
* Getter method to get the max num of miles.
* @return int
*/
public int getMaxNumMiles() {
return this.maxNumMiles;
}
/**
* Setter method for rate.
* @param newRate double
*/
public void setRate(double newRate) {
; this.rate = newRate;
}
/**
* Setter method for fees.
* @param newFees double
*/
public void setFees(double newFees) {
this.fees = newFees;
}
/**
* Setter method for max number of miles.
* @param newMaxNumMiles int
*/
public void setMaxNumMiles(int newMaxNumMiles) {
this.maxNumMiles = newMaxNumMiles;
}
}
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