Room.java: public class Room { // fields private String roomNumber; private String buildingName; private int capacity;...

Room.java:

public class Room
{
// fields
private String roomNumber;
private String buildingName;
private int capacity;

public Room()
{
this.capacity = 0;
}
/**
* Constructor for objects of class Room
*
* @param rN the room number
* @param bN the building name
* @param c the room capacity
*/
public Room(String rN, String bN, int c)
{
setRoomNumber(rN);
setBuildingName(bN);
setCapacity(c);
}

/**
* Mutator method (setter) for room number.
*
* @param rN a new room number
*/
public void setRoomNumber(String rN)
{
this.roomNumber = rN;
}

/**
* Mutator method (setter) for building name.
*
* @param bN a new building name
*/
public void setBuildingName(String bN)
{
this.buildingName = bN;
}

/**
* Mutator method (setter) for capacity.
*
* @param c a new capacity
*/
public void setCapacity(int c)
{
this.capacity = c;
}

/**
* Accessor method (getter) for room number.
*
* @return the room number
*/
public String getRoomNumber()
{
return this.roomNumber;
}

/**
* Accessor method (getter) for building name.
*
* @return the building name
*/
public String getBuildingName()
{
return this.buildingName;
}

/**
* Accessor method (getter) for capacity.
*
* @return the capacity
*/
public int getCapacity()
{
return this.capacity;
}
}

Put the ideas into practice by extending the original Room class to create an AcademicRoom.java class.

The AcademicRoom.java should store information about the building name, room number, capacity, academic department associated with the room (CPSC, MATH, BUAD, ...) and also whether or not the room contains a projector. Make sure to utilize inheritance (only add new fields to AcademicRoom).
Include a constructor for the AcademicRoom class that takes advantage of the reserved word super. Also include appropriate getter/setter methods for the AcademicRoom.
Add James Farmer B6 to your list as well as two or three other classrooms of your choosing.
Implement a test program (TestAcademicRoom.java) with a main() that creates an ArrayList of AcademicRooms. After the list is created, allow the user to: (1) add another room to the list, and (2) search for rooms. The program should not add the room if it already exists in the list. The user should search by inputting a building name and optionally a room number. If a room number is not provided, the program should print all rooms in that building. If matches are found in the list, print all the data members associated with the AcademicRoom(s).

Expert Solution

ANSWER:

CONSIDERING THE CONDITIONS AND REQUIREMENTS FROM THE QUESTION.

CODE :

public class Classroom implements Comparable<Classroom> {
// fields
private String roomNumber;
private String buildingName;
private int capacity;

/**
* Constructor for objects of class Classroom
*/
public Classroom() {
this.capacity = 0;
}

/**
* Constructor for objects of class Classroom
*
* @param rN the room number
* @param bN the building name
* @param c the room capacity
*/
public Classroom(String rN, String bN, int c) {
setRoomNumber(rN);
setBuildingName(bN);
setCapacity(c);
}

/**
* Mutator method (setter) for room number.
*
* @param rN a new room number
*/
public void setRoomNumber(String rN) {
this.roomNumber = rN;
}

/**
* Mutator method (setter) for building name.
*
* @param bN a new building name
*/
public void setBuildingName(String bN) {
this.buildingName = bN;
}

/**
* Mutator method (setter) for capacity.
*
* @param c a new capacity
*/
public void setCapacity(int c) {
this.capacity = c;
}

/**
* Accessor method (getter) for room number.
*
* @return the room number
*/
public String getRoomNumber() {
return this.roomNumber;
}

/**
* Accessor method (getter) for building name.
*
* @return the building name
*/
public String getBuildingName() {
return this.buildingName;
}

/**
* Accessor method (getter) for capacity.
*
* @return the capacity
*/
public int getCapacity() {
return this.capacity;
}

@Override
public int compareTo(Classroom o) {
return Integer.compare(getCapacity(), o.getCapacity());
}
}

//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

TestComparable.java

import java.util.ArrayList;
import java.util.Comparator;

public class TestComparable {

public static void main(String[] args) {
ArrayList<Classroom> ar = new ArrayList<Classroom>();
ar.add(new Classroom("r1", "b1", 10));
ar.add(new Classroom("r2", "b2", 40));
ar.add(new Classroom("r3", "b3", 50));
ar.add(new Classroom("r4", "b4", 20));
ar.add(new Classroom("r5", "b5", 5));

System.out.println("Before Sorting");
for (int j = 0; j < ar.size(); j++) {
System.out.println(ar.get(j).getRoomNumber()+" : "+ar.get(j).getCapacity());
}

ar.sort(Comparator.comparing(Classroom::getCapacity));

System.out.println("\nAfter Sorting");
for (int j = 0; j < ar.size(); j++) {
System.out.println(ar.get(j).getRoomNumber()+" : "+ar.get(j).getCapacity());
}
}
}

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

EXPLANATION

CODE TO COPY

public class Classroom implements Comparable<Classroom> { // IMPLEMENTING COMPARABLE INTERFACE

// SINCE WE ARE IMPLEMENTING THIS METHOD WE HAVE TO ADD A COMPARETO METHOD
// fields
private String roomNumber;
private String buildingName;
private int capacity;