1) create a class Cat... Create class Cat Add properties What characteristics do they have? Name, age, color, type (domestic / feral), etc. What color(s) might they have? White, cream, fawn, Cinnamon, Chocolate, Red, Lilac, Blue, Black, Lavender, etc. Add methods eat(), play(), etc. Constructors? A class provides a special type of methods, known as constructors, which are invoked to construct objects from the class Create 2 different constructor with different initialization parameters How to get the number of cats? Add a static variable and a static method Test Cat class by creating 2 Cat instances 2) create an Abstract class AbstractCat with the same properties and methods as Cat... Create class AbstractCat. How to secure data? To protect it from direct access and manipulation from outside of the class we need to make our instance data fields private. To let clients still manipulate data under our control we can provide them public getters and setters. create getters, setters, constructors and toString() Test AbstractCat class
1) create a class Cat... Create class Cat Add properties What characteristics do they have? Name, age, color, type (domestic / feral), etc. What color(s) might they have? White, cream, fawn, Cinnamon, Chocolate, Red, Lilac, Blue, Black, Lavender, etc. Add methods eat(), play(), etc. Constructors? A class provides a special type of methods, known as constructors, which are invoked to construct objects from the class Create 2 different constructor with different initialization parameters How to get the number of cats? Add a static variable and a static method Test Cat class by creating 2 Cat instances 2) create an Abstract class AbstractCat with the same properties and methods as Cat... Create class AbstractCat. How to secure data? To protect it from direct access and manipulation from outside of the class we need to make our instance data fields private. To let clients still manipulate data under our control we can provide them public getters and setters. create getters, setters, constructors and toString() Test AbstractCat class
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
Related questions
Question
1) create a class Cat...
Create class Cat
Add properties
What characteristics do they have?
Name, age, color, type (domestic / feral), etc.
What color(s) might they have?
White, cream, fawn, Cinnamon, Chocolate, Red, Lilac, Blue, Black,
Lavender, etc.
Add methods
eat(), play(), etc.
Constructors?
A class provides a special type of methods, known as constructors, which are
invoked to construct objects from the class
Create 2 different constructor with different initialization parameters
How to get the number of cats?
Add a static variable and a static method
Test Cat class by creating 2 Cat instances
Create class Cat
Add properties
What characteristics do they have?
Name, age, color, type (domestic / feral), etc.
What color(s) might they have?
White, cream, fawn, Cinnamon, Chocolate, Red, Lilac, Blue, Black,
Lavender, etc.
Add methods
eat(), play(), etc.
Constructors?
A class provides a special type of methods, known as constructors, which are
invoked to construct objects from the class
Create 2 different constructor with different initialization parameters
How to get the number of cats?
Add a static variable and a static method
Test Cat class by creating 2 Cat instances
2)
create an Abstract class AbstractCat with the same
properties and methods as Cat...
Create class AbstractCat.
How to secure data?
To protect it from direct access and manipulation from outside of the class
we need to make our instance data fields private.
To let clients still manipulate data under our control we can provide them
public getters and setters.
create getters, setters, constructors and toString()
Test AbstractCat class
properties and methods as Cat...
Create class AbstractCat.
How to secure data?
To protect it from direct access and manipulation from outside of the class
we need to make our instance data fields private.
To let clients still manipulate data under our control we can provide them
public getters and setters.
create getters, setters, constructors and toString()
Test AbstractCat class
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