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# Solution: Displaying message using inheritance

class Animal {
    
    private int age;
    private String name;

    void set_data(int a, String b) {
        
        age = a;
        name = b;
    }

    public String getName() {
        return name;
    }

    public int getAge() {
        return age;
    }
}

class Zebra extends Animal {

    String message_zebra(String str) {
        str = "The zebra named " + getName() + " is " + getAge() + " years old. The zebra comes from Africa";
        return str;
    }
}

class Dolphin extends Animal {


    String message_dolphin(String str) {
        str = "The dolphin named " + getName() + " is " + getAge() + " years old. The dolphin comes from New Zealand";
        return str;
    }
}

class Animal {
    private int age;
    private String name;

    void set_data(int a, String b) {
        age = a;
        name = b;
    }

    public String getName() {
        return name;
    }

    public int getAge() {
        return age;
    }
}

class Zebra extends Animal {

    String message_zebra(String str) {
        str = "The zebra named " + getName() + " is " + getAge() + " years old. The zebra comes from Africa";
        return str;
    }
}

class Dolphin extends Animal {


    String message_dolphin(String str) {
        str = "The dolphin named " + getName() + " is " + getAge() + " years old. The dolphin comes from New Zeland";
        return str;
    }
}

# Understanding the Code
$$$$
## Lines 1 - 19: Creating the *Animal* class
* On lines 3,4 the member variables are declared that are **private** to the student class. These include an **int** type variable `age`and a second variable is also declared, `name` which is of type **String**. 
* From lines 6-10 is the *method* named `set_data`. This according to the requirements, takes in parameters and sets both `age` and `name` to the passed parameters.
* From lines 12-14, is the method `getName()` which returns a **String** type of value.
* Lines 16-18 show the method `getAge()` which returns a **int** type of value. 
$$$$
## Lines 21 - 36: Creating the *Zebra* & *Dolphin* class
* The `Zebra` & `Dolphin` class `inherit` from the `Animal` class, each contain only one method named `method_zebra` and `method_dolphin` respectively. A variable `str` is being passed to the methods to store the output **String** according to the respective classes. Getters are used to showcase the inheritance because we are using them without instantiating the `Animal` class.


In this review, solution of the challenge 'Displaying Message Using Inheritance' from the previous lesson is provided.

Getting Started with Java!

Variables & User Input

Simple Maths & Logic

Strings and String Processing

Conditional Statements

Loops

Methods

Arrays

Classes and Inheritance

Generics

ArrayLists

Java Exam

Solution Review: Displaying Message Using Inheritance

Solution: Displaying message using inheritance