Question 4 (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.) U Account ADT // Accepts an int and set the account's opening year to that set Year(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 set Contents(ArrayList contents) Queue ADT // remove the least recently added item dequeue() throws ArrayOutOfBoundsException Show Transcribed Text
Question 4 (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.) U Account ADT // Accepts an int and set the account's opening year to that set Year(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 set Contents(ArrayList contents) Queue ADT // remove the least recently added item dequeue() throws ArrayOutOfBoundsException Show Transcribed Text
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
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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
3
The function getPoints [Select]
The function getVolume [Select]
The function stretch [Select]
Show Transcribed Text
Question 4
O
[Select]
O
to make the class immutable.
c
(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.)
Show Transcribed Text
to make the class immutable.
Queue ADT
// remove the least recently added item.
dequeue() throws ArrayOutOfBoundsException
to make the class immutable.
to make the class immutable.
Account ADT
// Accepts an int and sets the account's opening year to that
set Year(int year)
Bag ADT
// Sets the max capacity of the bag to the given integer
setMaxCapacity(int capacity)
O Queue ADT
// Sets the queues internal ArrayList to the given ArrayList
setContents(ArrayList contents)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fdcc1f5ef-f712-46be-a839-4c8a21d8c9e0%2Fa3f7914d-6cc3-43aa-89bc-0d08a96aa361%2Fvrbxmye_processed.jpeg&w=3840&q=75)
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
3
The function getPoints [Select]
The function getVolume [Select]
The function stretch [Select]
Show Transcribed Text
Question 4
O
[Select]
O
to make the class immutable.
c
(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.)
Show Transcribed Text
to make the class immutable.
Queue ADT
// remove the least recently added item.
dequeue() throws ArrayOutOfBoundsException
to make the class immutable.
to make the class immutable.
Account ADT
// Accepts an int and sets the account's opening year to that
set Year(int year)
Bag ADT
// Sets the max capacity of the bag to the given integer
setMaxCapacity(int capacity)
O Queue ADT
// Sets the queues internal ArrayList to the given ArrayList
setContents(ArrayList contents)
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