Figure 3 shows a class diagram that consists of three classes, class Shape, class Circle, and class Sphere. Shape -color:String="red" +Shape() +Shape(color:String) +getColor():String +setColor(color:String):void +toString(): String -radius:double=1.0 +Circle() Circle +Circle(radius:double) +Circle(radius:double, color:String) +getRadius():double +setRadius(radius:double):void +getArea():double +getPerimeter():double +toString():String
Figure 3 shows a class diagram that consists of three classes, class Shape, class Circle, and class Sphere. Shape -color:String="red" +Shape() +Shape(color:String) +getColor():String +setColor(color:String):void +toString(): String -radius:double=1.0 +Circle() Circle +Circle(radius:double) +Circle(radius:double, color:String) +getRadius():double +setRadius(radius:double):void +getArea():double +getPerimeter():double +toString():String
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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OOPs
In today's technology-driven world, computer programming skills are in high demand. The object-oriented programming (OOP) approach is very much useful while designing and maintaining software programs. Object-oriented programming (OOP) is a basic programming paradigm that almost every developer has used at some stage in their career.
Constructor
The easiest way to think of a constructor in object-oriented programming (OOP) languages is:
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![5. Figure 3 shows a class diagram that consists of three classes, class Shape, class Circle,
and class Sphere.
Shape
-color:String="red"
+Shape()
+Shape(color:String)
+getColor():String
+setColor(color:String):void
+toString(): String
-radius:double=1.0
+Circle()
Circle
+Circle(radius:double)
+Circle(radius:double, color :String)
+getRadius():double
+setRadius(radius:double):void
+getArea():double
+getPerimeter():double
+toString():String
+Sphere()
+Sphere (radius:double)
+Sphere (radius:double, color:String)
b. Write the class Circle in Java as described in Figure 3.
Sphere
+getArea():double
+getVolume():double
+toString():String
Figure 3
a. What is the type of relationship between the class Shape and class Circle? Explain.
C. Write a test driver code for the class sphere.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1dc47fd8-a8fb-4508-ac1d-ab085c84f089%2F700d2fc7-cf1a-4306-b4c1-e866dd8e76e7%2Fo21nhg_processed.jpeg&w=3840&q=75)
Transcribed Image Text:5. Figure 3 shows a class diagram that consists of three classes, class Shape, class Circle,
and class Sphere.
Shape
-color:String="red"
+Shape()
+Shape(color:String)
+getColor():String
+setColor(color:String):void
+toString(): String
-radius:double=1.0
+Circle()
Circle
+Circle(radius:double)
+Circle(radius:double, color :String)
+getRadius():double
+setRadius(radius:double):void
+getArea():double
+getPerimeter():double
+toString():String
+Sphere()
+Sphere (radius:double)
+Sphere (radius:double, color:String)
b. Write the class Circle in Java as described in Figure 3.
Sphere
+getArea():double
+getVolume():double
+toString():String
Figure 3
a. What is the type of relationship between the class Shape and class Circle? Explain.
C. Write a test driver code for the class sphere.
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