Question

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.

3. 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).
4. Include a constructor for the AcademicRoom class that takes advantage of the reserved word super. Also include appropriate getter/setter methods for the AcademicRoom.
5. Add James Farmer B6 to your list as well as two or three other classrooms of your choosing.
6. 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).

Answer 1

import java.util.ArrayList;

public class AcademicRoom extends Room {
    String AcademicDepartment;
    Boolean projector;

    public AcademicRoom(String buildingName, String roomNo, int capacity, String department, Boolean projector) {
        super(roomNo, buildingName, capacity);
        setAcademicDepartment(department);
        setProjector(projector);
    }

    public void setAcademicDepartment(String academicDepartment) {
        this.AcademicDepartment = academicDepartment;
    }

    public void setProjector(Boolean projector) {
        this.projector = projector;
    }

    public String getAcademicDepartment() {
        return this.AcademicDepartment;
    }

    public Boolean getProjector() {
        return this.projector;
    }

    @Override
    public String toString() {
        return "Room No:"  + getRoomNumber() + ", Building Name: " + getBuildingName() + ", Capacity: " + getCapacity() + ", Academic Department: " + getAcademicDepartment() + ", Projector Present: " + getProjector();
    }

}

import java.util.ArrayList;
import java.util.Scanner;

public class TestAcademicRoom {

    public TestAcademicRoom() {

    }

    boolean compare(AcademicRoom room, ArrayList<AcademicRoom> roomList) {

        for (int i = 0; i < roomList.size(); i++) {
            AcademicRoom room3 = roomList.get(i);
            if(room3.getProjector().equals(room.getProjector()) && room3.getAcademicDepartment().equals(room.getAcademicDepartment()) && room3.getBuildingName().equals(room.getBuildingName()) && room3.getCapacity() == room.getCapacity() && room3.getRoomNumber().equals(room.getRoomNumber()))
                return true;
        }
        return false;
    }

    ArrayList<AcademicRoom> search(ArrayList<AcademicRoom> roomList, String buildingName, String roomNo, boolean status) {
        ArrayList<AcademicRoom> result = new ArrayList<AcademicRoom>();

        if(status) {
            for(int i = 0; i < roomList.size(); i++) {
                AcademicRoom room1 = roomList.get(i);
                if(room1.getBuildingName().equals(buildingName) && room1.getRoomNumber().equals(roomNo)) {
                    result.add(room1);
                }
            }
        }else {
            for(int i = 0; i < roomList.size(); i++) {
                AcademicRoom room2 = roomList.get(i);
                if(room2.getBuildingName().equals(buildingName))
                    result.add(room2);
            }
        }

        return result;
    }


    public static void main(String[] args) {

        TestAcademicRoom testRoom = new TestAcademicRoom();
        ArrayList<AcademicRoom> roomList = new ArrayList<AcademicRoom>();
        // Adding rooms to list of own choice
        roomList.add(new AcademicRoom("james", "216", 300, "Science", true));
        roomList.add(new AcademicRoom("F2", "219", 305, "Arts", false));
        roomList.add(new AcademicRoom("XDD", "345", 100, "Literature", true));
        roomList.add(new AcademicRoom("GHJHFD", "556", 598, "Commerce", false));
        roomList.add(new AcademicRoom("JJHDG", "789", 200, "Robotics", false));

        Scanner sc = new Scanner(System.in);  
       while(true) {
        System.out.println("1. Add Another Room To the List.\n2. Search For rooms. \n3. Exit.");
        int input = sc.nextInt();
        if(input == 1) {
            String roomno, buildingName, department, projector;
            int capacity;
            System.out.print("Enter Room NO.: ");
            roomno = sc.next();
            System.out.print("Enter Building Name: ");
            buildingName = sc.next();
            System.out.print("Enter Capacity: ");
            capacity = sc.nextInt();
            System.out.print("Enter Department ");
            department = sc.next();
            System.out.print("Projector Present 'y or n': ");
            projector = sc.next();

            boolean p = false;
            if(projector.equals('Y') || projector.equals('y'))
                p = true;
            
            AcademicRoom room = new AcademicRoom(buildingName, roomno, capacity, department, p);

            if(!testRoom.compare(room, roomList)){
                roomList.add(new AcademicRoom(buildingName, roomno, capacity, department, p));
                System.out.println("Room Added....");
            }


        }else if(input == 2) {
            String buildingName, roomNo = "none", status;
            ArrayList<AcademicRoom> rooms;

            System.out.print("Enter Building Name: ");
            buildingName = sc.next();
            System.out.print("Enter Room no 'Y or N' ");
            status = sc.next();

            if(status.equals("Y") || status.equals("y")){
                roomNo = sc.next();
                rooms = testRoom.search(roomList, buildingName, roomNo, true);

                if(rooms.size() < 1)
                    System.out.print("No Rooms to show.");
                else {
                    for(int i = 0; i < rooms.size(); i++) {
                        System.out.println(rooms.get(i));
                    }
                } 
            }else {
                rooms = testRoom.search(roomList, buildingName, roomNo, false);

                if(rooms.size() < 1)
                    System.out.println("No Rooms to show...");
                else{
                    System.out.println("Rooms in the building: " + buildingName);
                    for (int i = 0; i < rooms.size(); i++) {
                        System.out.println(rooms.get(i));
                    }
                }
                
            }
            }else if(input == 3){
                break;
            }
                else {
                System.out.println("Wrong Input. Try Again....");
            }
       }
    }
}