CODEWITHSUNDEEP
java
user2401478
user2401478

Reputation: 1

java Template for class fields

I have 3 classes with different fields:

Class Cow(){
private integer legs;
private integer eyes;}

Class Fish(){
private integer fins;
private integer eyes;}

Class Pinguin(){
private integer legs;
private integer fins;
private integer eyes;}

I want to make sure that the fields are valid / allowed fields. Is there any design pattern for this ? If I use inheritance from Animal() then the Cow may have fins which I want to avoid. I just want that fins is called fins and not 'FiN' or 'fiins' in the subclass. Any suggestion ?

Upvotes: 0

Views: 71

Answers (2)

Rahul Bobhate
Rahul Bobhate

Reputation: 5082

Create a parent class which will have all the common properties and then extend the parent class in the child class. In this case:

class Animal{
    protected int eyes;
}

class Cow extends Aminal{
    protected int legs;
}

The Animal class is the parent class whereas the Cow is a child class which extends Animal, and will also contain the data member eyes.

Also, check the syntax of the statements. Your classes won't compile.

Upvotes: 0

Jemolah
Jemolah

Reputation: 2192

This is basic object oriented design. Just follow the real world as close as possible. Create a base class Animal() with subclasses like Birds(), Mammals(), Insects() and so on. Go further down in that tree.

Upvotes: 2

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