Added source files (Programmieren Tutorium)

presentations/Programmieren-Tutorium/Tutorium-09/SinglyLinkedList-Template/Bike.java

@@ -0,0 +1,98 @@
+/**
+ * A bike model in Java.
+ *
+ * @author Markus Iser, Martin Thoma
+ * @version 1.0
+ */
+
+public class Bike {
+    private final Gears gears;
+    private final Wheels wheels;
+
+    enum Material {
+        ALU, STEEL, TITAN
+    }
+
+    private final Material material;
+
+    private final String modelId;
+
+    private final boolean hasBell;
+    private final boolean hasLights;
+
+    /** Price of the bike in cents. */
+    private int price;
+
+    Bike(String modelId) {
+        this.gears = null;
+        this.wheels = null;
+        this.material = Material.ALU;
+        this.modelId = modelId;
+        this.hasBell = true;
+        this.hasLights = true;
+    }
+
+    Bike(Gears gears, Wheels wheels, Material material,
+            String modelId, boolean bell, boolean lights) {
+        this.gears = gears;
+        this.wheels = wheels;
+        this.material = material;
+        switch (material) {
+        case ALU:
+            price = 20000;
+            break;
+        case STEEL:
+            price = 30000;
+            break;
+        case TITAN:
+            price = 40000;
+            break;
+        }
+        this.modelId = modelId;
+        this.hasBell = bell;
+        this.hasLights = lights;
+    }
+
+    /**
+     * Check if the bike is legal for usage on streets.
+     *
+     * @return {@code true} if the bike has a bell and has lights
+     */
+    public boolean isStreetLegal() {
+        return hasBell && hasLights;
+    }
+
+    /**
+     * Get the price of the bike.
+     *
+     * @return the sum of the bike's base-price and the price of the wheels and
+     *         gears
+     */
+    public int getPrice() {
+        return price + gears.getPrice() + wheels.getPrice();
+    }
+
+    /**
+     * @return the material of this bike
+     */
+    public Material getMaterial() {
+        return this.material;
+    }
+
+    /**
+     * @return the model id of this bike
+     */
+    public String getModelId() {
+        return this.modelId;
+    }
+
+    /*
+     * (non-Javadoc)
+     *
+     * @see java.lang.Object#toString()
+     */
+    @Override
+    public String toString() {
+        return "Bike[" + modelId + "]";
+    }
+}