Mittwoch lesson

Code/Steiner/Zootest/src/Animal.java

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+public abstract class Animal {
+    public abstract void makeSound();
+}

Code/Steiner/Zootest/src/Camel.java

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+public class Camel extends Animal implements Climbing {
+    @Override
+    public void makeSound() {
+        System.out.println("Desert Camel grumbles!");
+    }
+
+    @Override
+    public void climb() {
+        System.out.println("Desert Camel climbs a dune.");
+    }
+}

Code/Steiner/Zootest/src/Climbing.java

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+public interface Climbing {
+    void climb();
+}

Code/Steiner/Zootest/src/Eagle.java

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+public class Eagle extends Animal implements Flying, Swimming {
+    @Override
+    public void makeSound() {
+        System.out.println("Eagle screams!");
+    }
+
+    @Override
+    public void fly() {
+        System.out.println("Eagle flies high in the sky.");
+    }
+
+    @Override
+    public void swim() {
+        System.out.println("Eagle fishes in the water (swims...).");
+    }
+}

Code/Steiner/Zootest/src/Flying.java

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+public interface Flying {
+    void fly();
+}
+

Code/Steiner/Zootest/src/Frog.java

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+public class Frog extends Animal implements Swimming, Climbing {
+    @Override
+    public void makeSound() {
+        System.out.println("Green Frog croaks!");
+    }
+
+    @Override
+    public void swim() {
+        System.out.println("Green Frog swims in the pond.");
+    }
+
+    @Override
+    public void climb() {
+        System.out.println("Green Frog climbs a tree.");
+    }
+}

Code/Steiner/Zootest/src/Swimming.java

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+public interface Swimming {
+    void swim();
+}

Code/Steiner/Zootest/src/ZooTest.java

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+public class ZooTest {
+    public static void main(String[] args) {
+        Animal eagle = new Eagle();
+        eagle.makeSound();
+        ((Eagle) eagle).fly();
+        ((Eagle) eagle).swim();
+
+        Animal frog = new Frog();
+        frog.makeSound();
+        ((Frog) frog).swim();
+        ((Frog) frog).climb();
+
+        Animal camel = new Camel();
+        camel.makeSound();
+        ((Camel) camel).climb();
+    }
+}