Use class abstraction and encapsulation concepts to re-draw the UML class diagram of Square class that you drew in Lab 02.Discuss:Do you think the data field (side) should be declared private (hidden)? Why?If the data field is declared private (hidden), how the data field can be accessed from outside the class (for example, from the Test class)?The new UML class diagram should include the getter and setter methods which deal with the data field side.Create a new Java Application project called lab_03.Copy the source files of the classes java and TestSquare.java that you created in Lab 01 and paste both source files in the default package. (you may need to fix any problems related to package declaration)Open Square and TestSquare classes using NetBeans editor.Use class abstraction and encapsulation concepts to modify the implementation of Square class, so the new class implementation would satisfy the class abstraction and encapsulation concepts.Add any required getter and setter methods to the class Square.Fix any compiling errors in the TestSquare class as a result of modifying the class Square.Run the Test TestSquare

Square.java File we are creating the Square java code file in the codeunit package. package…

Answered: Use class abstraction and encapsulation…

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

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Question

Use class abstraction and encapsulation concepts to re-draw the UML class diagram of Square class that you drew in Lab 02.

Discuss:

Do you think the data field (side) should be declared private (hidden)? Why?

If the data field is declared private (hidden), how the data field can be accessed from outside the class (for example, from the Test class)?

The new UML class diagram should include the getter and setter methods which deal with the data field side.

Create a new Java Application project called lab_03.
Copy the source files of the classes java and TestSquare.java that you created in Lab 01 and paste both source files in the default package. (you may need to fix any problems related to package declaration)
Open Square and TestSquare classes using NetBeans editor.
Use class abstraction and encapsulation concepts to modify the implementation of Square class, so the new class implementation would satisfy the class abstraction and encapsulation concepts.
Add any required getter and setter methods to the class Square.
Fix any compiling errors in the TestSquare class as a result of modifying the class Square.
Run the Test TestSquare

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