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Question 17 Aa A  Don't before solution copy and paste . Full explain this question and text typing work only      We should answer our question within 2 hours takes more time then we will reduce Rating Dont ignore this line

Question 17 Aa A  Don't before solution copy and paste . Full explain this question and text typing work only      We should answer our question within 2 hours takes more time then we will reduce Rating Dont ignore this line

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 17 Aa A 

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(Edgar) The following class represents a 3d shape using an array of 3dPoints. It is intended to be immutable. Assume the 3dPoint class is immutable. Some of these functions, by their nature, make the class mutable and should be removed completely to make it immutable. Some others might make the class mutable, but it is possible to make them safe by implementing them carefully. Others are mostly safe in an immutable class. Determine which functions should be removed, which must be carefully implemented, and which are safe. public class 3dShape { private 3dPoint points; public 3dShape(3dPoint[] points); // Sets the point array member to the given point array: public void setPoints(3dPoint[] points); // Returns the point aray member public 3dPoint getPoints(); // Returns the volume of the shape represented by the point public double getVolume(); // Stretches the shape by the percent specified in each direction public void stretch(double x, double y, double z); } The function setPoints Select] The function getPoints [Select] The function getVolume [Select] The function stretch [Select] to make the class immutable. ✓to make the class immutable. to make the class immutable. to make the class immutable.
Transcribed Image Text:(Edgar) The following class represents a 3d shape using an array of 3dPoints. It is intended to be immutable. Assume the 3dPoint class is immutable. Some of these functions, by their nature, make the class mutable and should be removed completely to make it immutable. Some others might make the class mutable, but it is possible to make them safe by implementing them carefully. Others are mostly safe in an immutable class. Determine which functions should be removed, which must be carefully implemented, and which are safe. public class 3dShape { private 3dPoint points; public 3dShape(3dPoint[] points); // Sets the point array member to the given point array: public void setPoints(3dPoint[] points); // Returns the point aray member public 3dPoint getPoints(); // Returns the volume of the shape represented by the point public double getVolume(); // Stretches the shape by the percent specified in each direction public void stretch(double x, double y, double z); } The function setPoints Select] The function getPoints [Select] The function getVolume [Select] The function stretch [Select] to make the class immutable. ✓to make the class immutable. to make the class immutable. to make the class immutable.
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