oppgave: train

src/main/java/oving7/train/PassengerCar.java

@@ -9,7 +9,7 @@ package oving7.train;
  */
 public class PassengerCar extends TrainCar {
 
-    // TODO: Add fields here
+    private int passengerCount;
 
     /**
      * Constructor for the passenger car.
@@ -21,7 +21,7 @@ public class PassengerCar extends TrainCar {
      * @see PassengerCarTest#testWeight()
      */
     public PassengerCar(int deadWeight, int passengerCount) {
-        // TODO: Implement this constructor
+	this.passengerCount = passengerCount;
         super(deadWeight);
     }
 
@@ -31,8 +31,7 @@ public class PassengerCar extends TrainCar {
      * @see PassengerCarTest#testWeight()
      */
     public int getPassengerCount() {
-        // TODO: Implement this method
-        return 0;
+        return passengerCount;
     }
 
     /**
@@ -42,22 +41,22 @@ public class PassengerCar extends TrainCar {
      * @see PassengerCarTest#testWeight()
      */
     public void setPassengerCount(int passengerCount) {
-        // TODO: Implement this method
+	if (passengerCount < 0) {
+	    throw new IllegalArgumentException("passenger count cannot be less than zero");
+	}
+	this.passengerCount = passengerCount;
     }
 
     @Override
     public int getTotalWeight() {
         // To calculate the total weight of the passenger car, you can assume that an average
         // passenger weighs 80 kg
-
-        // TODO: Implement this method
-        return 0;
+        return super.getDeadWeight() + passengerCount * 80;
     }
 
     @Override
     public String toString() {
-        // TODO: Implement this method
-        return null;
+        return "PassengerCar";
     }
 
     public static void main(String[] args) {