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(); // turns 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 needs to be carefully implemented to make the class immutable. The function getPoints does not need special attention to make the class immutable. The function getVolume needs to be carefully implemented to make the class immutable. The function stretch needs to be removed to make the class immutable.
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(); // turns 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 needs to be carefully implemented to make the class immutable. The function getPoints does not need special attention to make the class immutable. The function getVolume needs to be carefully implemented to make the class immutable. The function stretch needs to be removed to make the class immutable.
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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![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 needs to be carefully implemented to make the class
immutable.
The function getPoints does not need special attention to make the class immutable.
The function getVolume needs to be carefully implemented to make the class
immutable.
The function stretch needs to be removed to make the class immutable.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fbc064630-90b9-4865-ab90-047d3f200edb%2F68f38c5f-d583-41de-8cec-9e9b521a8160%2Fefpy6_processed.jpeg&w=3840&q=75)
Transcribed Image Text: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 needs to be carefully implemented to make the class
immutable.
The function getPoints does not need special attention to make the class immutable.
The function getVolume needs to be carefully implemented to make the class
immutable.
The function stretch needs to be removed to make the class immutable.
Transcribed Image Text:(Edgar)
Select the functions from the following list that could belong to an ADT. Remember
that not all ADTs are immutable. (Hint: ask yourself if these methods belong in an
idealistic ADT, i.e. one truly meeting the ADT design rule.)
Account ADT
// Accepts an int and sets the account's opening year to that
setYear(int year)
Bag ADT
// Sets the max capacity of the bag to the given integer
setMaxCapacity (int capacity)
Queue ADT
// Sets the queues internal ArrayList to the given ArrayList
setContents(ArrayList contents)
Queue ADT
// remove the least recently added item
dequeue() throws ArrayOutOfBounds Exception
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