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Semester 1/Programming 1/Java/examples/projects/chapter16/taxi-company-outline-testing/Taxi.java

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+
+/**
+ * A taxi is able to carry a single passenger.
+ * 
+ * @author David J. Barnes and Michael Kölling
+ * @version 2016.02.29
+ */
+public class Taxi extends Vehicle
+{
+    /**
+     * Constructor for objects of class Taxi
+     * @param company The taxi company. Must not be null.
+     * @param location The vehicle's starting point. Must not be null.
+     * @throws NullPointerException If company or location is null.
+     */
+    public Taxi(TaxiCompany company, Location location)
+    {
+        super(company, location);
+    }
+
+    /**
+     * Is the taxi free?
+     * @return Whether or not this taxi is free.
+     */
+    public boolean isFree()
+    {
+        return getTargetLocation() == null;
+    }
+    
+    /**
+     * Receive a pickup location. This becomes the
+     * target location.
+     * @param location The pickup location.
+     */
+    public void setPickupLocation(Location location)
+    {
+        setTargetLocation(location);
+    }
+    
+    /**
+     * Receive a passenger.
+     * Set their destination as the target location.
+     * @param passenger The passenger.
+     */
+    public void pickup(Passenger passenger)
+    {
+        setTargetLocation(passenger.getDestination());
+    }
+
+    /**
+     * Offload the passenger.
+     */
+    public void offloadPassenger()
+    {
+        clearTargetLocation();
+    }
+}