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Question 3 (a) Design a class named Point with two private attributes x and y of type int for the coordinates x and y of a point. The class has a toString method that returns "Coordinates (4,10)" where 4 and 10 are the attributes x and y.

Question 3 (a) Design a class named Point with two private attributes x and y of type int for the coordinates x and y of a point. The class has a toString method that returns "Coordinates (4,10)" where 4 and 10 are the attributes x and y.

Database System Concepts
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 3a only, java code

 

Question 3 (a) Design a class named Point with two private attributes x and y of type int for the coordinates x and y of a point. The class has a toString method that returns "Coordinates (4,10)" where 4 and 10 are the attributes x and y. (b) Continue from (a), design a class named Rectangle with attributes Point, width and length. Create a constructor that receives x, y, width and length as parameters to initialize the object. The class has a method named area that returns the area of the rectangle object. The formula for area is width * length. The class also has a method named getLowerRight Point which returns the coordinates of the lower right point of the rectangle. The lower right coordinate is calculated based on the Point and the width and length. Coordinate x of the lower right point is coordinate x of Point + width. Coordinate y of the lower right point is coordinate x of Point - length. Point (x,y) width length LowerRightPoint (x,y)
Transcribed Image Text:Question 3 (a) Design a class named Point with two private attributes x and y of type int for the coordinates x and y of a point. The class has a toString method that returns "Coordinates (4,10)" where 4 and 10 are the attributes x and y. (b) Continue from (a), design a class named Rectangle with attributes Point, width and length. Create a constructor that receives x, y, width and length as parameters to initialize the object. The class has a method named area that returns the area of the rectangle object. The formula for area is width * length. The class also has a method named getLowerRight Point which returns the coordinates of the lower right point of the rectangle. The lower right coordinate is calculated based on the Point and the width and length. Coordinate x of the lower right point is coordinate x of Point + width. Coordinate y of the lower right point is coordinate x of Point - length. Point (x,y) width length LowerRightPoint (x,y)
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