Question

Project 1. Dog Door You are asked to create a dog door for a client. You are programming the remote that will do things such as open and close, etc. You must create both the program and write a white paper explaining your design • It should open (saying "The dog door is open.") and close (saying "The dog door is closed.). • It should take into account a dog going outside and coming back in; it should open when the dog barks, recognize the sound of the owner's dog and not other dogs, not let other dogs are animals in by closing when necessary (use any way you like). . Some people may want their dog door to lock/unlock all the windows in the house if a certain combination on a keypad is put in. Some people may want the door to detect the dog scratching the door • You should at least have Remote, BarkRecognizer, DogDoor, and Bark classes. • You should use an Iterator (by implementing the interface of Iterator, i.e. not just a regular loop) to recognize barks. Make sure to use classes, objects, inheritance, polymorphism, interface, etc. Use main to show how it works. Project 2 - Parking Gara You have recently been thinking of going into business. It has always been your dream to own a parking lot in the city. You recently went and bought a very large underground facility and are almost ready for opening day! Design a program that models a parking lot. • You should have the relevant data structures (more than one perhaps depending if they park their car or an attendant does, etc.). You can use collections, but you must also Create your own generic class and create your own data structure. . You should be able to do things like sort data you should write your own sorting methods, use comparators and iterators) . This should be a real world design, so think of all the possibilities and how you would deal with them • Include a doc that explains your design (and obviously comment your code). • At least 8 objects should be implemented and run in main. Make sure to put in data. You will also need to analyze the cars coming into your lot, simulating some of the process • Extra credit: If you like you can use lambdas and streams to analyze your information a bit Project 3 - Independent Learning Choose one of several options below and explain it with code. This project has a component focused on writing code, a component focused on explaining what it means, what it does, why we would use it, etc., and a component of a recorded presentation. Please upload both the powerpoint file, code, and your recording link 1. Option 1: JSON implementation and networking 2 Option 2. Cryptography implementation 3. Option 3: Unit Testing. Logging, and ANT 4. Option 4: Concurrency and Multi-threading

Answer 1

Executable Code

//DogBark.java

//Class name.

public class DogBark

{

//Declare the needed variable.

private String dSound;

//Constructor.

public DogBark(String dSound)

{

this.dSound = dSound;

}

//Method getDSound().

public String getDSound()

{

return this.dSound;

}

//Method equals().

public boolean equals(DogBark oBark)

{

//Condition check.

if (this.dSound.equalsIgnoreCase(oBark.getDSound()))

{

  

//Return value.

return true;

}

//Otherwise, return false.

return false;

}

}

//DogBarkRecognizer.java

//Include the needed packages.

import java.util.Iterator;

import java.util.List;

//Class name.

public class DogBarkRecognizer

{

  

//Declare the needed variable.

private MyDogDoor dDoor;

  

//Constructor.

public DogBarkRecognizer(MyDogDoor dDoor)

{

this.dDoor = dDoor;

}

//Method recognizer().

public void recognizer(DogBark dBark)

{

  

//Display message.

System.out.println("DogBarkRecognizer: Heard a '" + dBark.getDSound() + "'!");

//List of allowed barks.

List<DogBark> barksAllowed = dDoor.getBarksAllowed();

//For loop().

for (Iterator<DogBark> idx = barksAllowed.iterator(); idx.hasNext();)

{

DogBark allowedBark = idx.next();

  

//Condition check.

if (allowedBark.equals(dBark))

{

  

//Function call.

dDoor.dOpen();

//Return.

return;

}

}

//Display message.

System.out.println("This dog isn't allowed in!");

}

}

//MyDogDoor.java

//Include the needed packages.

import java.util.LinkedList;

import java.util.List;

import java.util.Timer;

import java.util.TimerTask;

//Class name.

public class MyDogDoor

{

//Declare the needed variables.

private boolean dOpen;

private List<DogBark> barksAllowed;

//Constructor.

public MyDogDoor()

{

this.dOpen = false;

this.barksAllowed = new LinkedList<DogBark>();

}

//Method dOpen().

public void dOpen()

{

//Display message.

System.out.println("The dog door opens.");

dOpen = true;

//For time delay.

final Timer dTimer = new Timer();

dTimer.schedule(new TimerTask()

{

//Overriden method run().

@Override

public void run()

{

dClose();

dTimer.cancel();

}

}, 5000);

}

//Method dClose().

public void dClose()

{

System.out.println("The dog door closes.");

dOpen = false;

}

//Method isOpen().

public boolean isOpen()

{

return dOpen;

}

//Method getBarksAllowed().

public List<DogBark> getBarksAllowed()

{

return this.barksAllowed;

}

//Method addBarksAllowed().

public void addBarksAllowed(DogBark allowedBark)

{

barksAllowed.add(allowedBark);

}

}

//MyRemote.java

//Class name.

public class MyRemote

{

//Declare the needed variable.

private MyDogDoor dDoor;

//Constructor.

public MyRemote(MyDogDoor dDoor)

{

this.dDoor = dDoor;

}

//Method buttonPress().

public void buttonPress()

{

//Display message.

System.out.println("Pressing remote button!");

//Condition check.

if (dDoor.isOpen())

{

//Function call.

dDoor.dClose();

}

//Otherwise.

else

{

//Function call.

dDoor.dOpen();

}

}

}

//MyDogDoorSimulator.java

//Class name.

public class MyDogDoorSimulator

{

//Main().

public static void main(String[] args)

{

//Create instance for MyDogDoor class.

MyDogDoor dDoor = new MyDogDoor();

//Add barks allowed.

dDoor.addBarksAllowed(new DogBark("woowo"));

dDoor.addBarksAllowed(new DogBark("roww"));

dDoor.addBarksAllowed(new DogBark("raww"));

dDoor.addBarksAllowed(new DogBark("rawl"));

dDoor.addBarksAllowed(new DogBark("warl"));

//Create instance for DogBarkRecognizer class.

DogBarkRecognizer recogn = new DogBarkRecognizer(dDoor);

//Create instance for MyRemote class.

MyRemote myremote = new MyRemote(dDoor);

//Display message.

System.out.println("My dog starts barking...");

//Function call.

recogn.recognizer(new DogBark("woowo"));

//Display message.

System.out.println("\nMy dog has gone outside...");

try

{

//Delay.

Thread.sleep(10000);

}

catch (InterruptedException e)

{

//Display message.

System.out.println("Something went wrong :)");

}

//Display message.

System.out.println("\nMy dog is all done...");

System.out.println("\n...but he is stuck outside!");

//Create a instance for for another dog.

DogBark otherDog = new DogBark("Other Dog");

//Display message.

System.out.println("\nAnother dog starts barking.");

//Function call.

recogn.recognizer(otherDog);

try

{

//Delay.

Thread.sleep(5000);

}

catch (InterruptedException e)

{

//Display message.

System.out.println("Something went wrong :)");

}

//Display message.

System.out.println("\nMy dog starts barking...");

//Function call.

recogn.recognizer(new DogBark("warl"));

//Display message.

System.out.println("\nMy dog came back inside...");

}

}