Declaring subclasses that inherit the implementation of interfaces

We have the SocialAnimal abstract class that implements both the Sociable and Comparable<Sociable> interfaces. We cannot create instances of this abstract class. Now, we will create a concrete subclass of SocialAnimal named SocialLion. The class declares a constructor that ends up calling the constructor defined in the superclass. The class implements the four abstract methods declared in its superclass to return the appropriate values for a lion that will participate in a party. The code file for the sample is included in the java_9_oop_chapter_10_01 folder, in the example10_01.java file.

public class SocialLion extends SocialAnimal {
    public SocialLion(String name, int age) {
        super(name, age);
    }

    @Override
    public String getDanceRepresentation() {
        return "*-* ^\\/^ (-)";
    }

    @Override
    public String getFirstSoundInWords() {
        return "Roar";
    }

    @Override
    public...