implement solution

Author: SteffenLm

Engine.java

@@ -0,0 +1,18 @@
+public enum Engine {
+
+  DIESEL("Diesel"),
+  PETROL("Benzin"),
+  GAS("Gas"),
+  ELECTRO("Elektro");
+
+  private String description;
+
+  Engine(String description) {
+    this.description = description;
+  }
+
+  public String getDescription() {
+    return description;
+  }
+
+}

Exercise.java

@@ -5,9 +5,9 @@ public static void main(String[] args) {
     numberOfVehicles = Vehicle.getNumberOfVehicles();
     System.out.println("Anzahl Fahrzeuge: " + numberOfVehicles);
 
-    Vehicle vehicle1 = new Vehicle("Porsche", "911");
-    Vehicle vehicle2 = new Vehicle("MAN", "TGX");
-    Vehicle vehicle3 = new Vehicle("Opel", "Zafira Life");
+    Vehicle vehicle1 = new Vehicle("Porsche", "911", Engine.ELECTRO);
+    Vehicle vehicle2 = new Vehicle("MAN", "TGX", Engine.DIESEL);
+    Vehicle vehicle3 = new Vehicle("Opel", "Zafira Life", Engine.DIESEL);
 
     numberOfVehicles = Vehicle.getNumberOfVehicles();
     System.out.println("Anzahl Fahrzeuge: " + numberOfVehicles);

Vehicle.java

@@ -2,12 +2,14 @@ public class Vehicle {
 
   private String make;
   private String model;
+  private Engine engine;
   private double speed;
   private static int numberOfVehicles;
 
-  public Vehicle(String make, String model) {
+  public Vehicle(String make, String model, Engine engine) {
     this.make = make;
     this.model = model;
+    this.engine = engine;
     numberOfVehicles++;
   }
 
@@ -19,6 +21,10 @@ public String getModel() {
     return model;
   }
 
+  public Engine getEngine() {
+    return engine;
+  }
+
   public static int getNumberOfVehicles() {
     return numberOfVehicles;
   }
@@ -34,6 +40,7 @@ public void brake(int value) {
   }
 
   public void print() {
-    System.out.println(make + " " + model);
+    System.out.println(make + " " + model + " (" + engine.getDescription() + ")");
   }
+
 }