src/lab12_singleton/ex1/CarSensorSingletonLauncher.java

@@ -1,29 +0,0 @@
-package lab12_singleton.ex1;
-
-import lab12_singleton.ex1.sensors.*;
-import lab12_singleton.ex1.managers.*;
-
-public class CarSensorSingletonLauncher {
-    public CarSensorSingletonLauncher() {
-
-    }
-
-    public static void main(String[] args) {
-        CarSensorSingletonLauncher launcher = new CarSensorSingletonLauncher();
-        launcher.launch();
-    }
-
-    public void launch() {
-        this.test(SimpleSingletonSensorsManager.getInstance());
-        this.test(SynchSingletonSensorsManager.getInstance());
-        this.test(EagerSingletonSensorsManager.getInstance());
-        this.test(DbleCheckedSingletonSensorsManager.getInstance());
-    }
-
-    private void test(SingletonSensorManager manager) {
-        manager.addSensor(new TemperatureSensor());
-        manager.addSensor(new SpeedSensor());
-        manager.addSensor(new RoadConditionSensor());
-        manager.printState();
-    }
-}

src/lab12_singleton/ex1/Sensor.java

@@ -1,15 +0,0 @@
-package lab12_singleton.ex1;
-
-public abstract class Sensor {
-    private boolean ok = true;
-
-    public abstract String getName();
-    public void setOk(boolean ok) {
-        this.ok = ok;
-    }
-
-    @Override
-    public String toString() {
-        return getName() + ": " + (ok ? "Ok" : "Warning");
-    }
-}

src/lab12_singleton/ex1/SingletonSensorManager.java

@@ -1,17 +0,0 @@
-package lab12_singleton.ex1;
-
-import java.util.ArrayList;
-
-public abstract class SingletonSensorManager {
-    private final ArrayList<Sensor> sensors = new ArrayList<>();
-
-    protected SingletonSensorManager() {}
-
-    public void addSensor(Sensor sensor) {
-        sensors.add(sensor);
-    }
-
-    public void printState() {
-        System.out.println("<" + this.getClass().getSimpleName() + ": " + sensors.toString() + ">");
-    }
-}

src/lab12_singleton/ex1/managers/DbleCheckedSingletonSensorsManager.java

@@ -1,18 +0,0 @@
-package lab12_singleton.ex1.managers;
-
-import lab12_singleton.ex1.SingletonSensorManager;
-
-public class DbleCheckedSingletonSensorsManager extends SingletonSensorManager {
-    private static DbleCheckedSingletonSensorsManager instance;
-
-    public static DbleCheckedSingletonSensorsManager getInstance() {
-        if (instance == null) {
-            synchronized (DbleCheckedSingletonSensorsManager.class) {
-                if (instance == null) {
-                    instance = new DbleCheckedSingletonSensorsManager();
-                }
-            }
-        }
-        return instance;
-    }
-}

src/lab12_singleton/ex1/managers/EagerSingletonSensorsManager.java

@@ -1,11 +0,0 @@
-package lab12_singleton.ex1.managers;
-
-import lab12_singleton.ex1.SingletonSensorManager;
-
-public class EagerSingletonSensorsManager extends SingletonSensorManager {
-    private static final EagerSingletonSensorsManager instance = new EagerSingletonSensorsManager();
-
-    public static EagerSingletonSensorsManager getInstance() {
-        return instance;
-    }
-}

src/lab12_singleton/ex1/managers/SimpleSingletonSensorsManager.java

@@ -1,14 +0,0 @@
-package lab12_singleton.ex1.managers;
-
-import lab12_singleton.ex1.SingletonSensorManager;
-
-public class SimpleSingletonSensorsManager extends SingletonSensorManager {
-    private static SimpleSingletonSensorsManager instance;
-
-    public static SingletonSensorManager getInstance() {
-        if (instance == null) {
-            instance = new SimpleSingletonSensorsManager();
-        }
-        return instance;
-    }
-}

src/lab12_singleton/ex1/managers/SynchSingletonSensorsManager.java

@@ -1,14 +0,0 @@
-package lab12_singleton.ex1.managers;
-
-import lab12_singleton.ex1.SingletonSensorManager;
-
-public class SynchSingletonSensorsManager extends SingletonSensorManager {
-    private static SynchSingletonSensorsManager instance;
-
-    public static synchronized SynchSingletonSensorsManager getInstance() {
-        if (instance == null) {
-            instance = new SynchSingletonSensorsManager();
-        }
-        return instance;
-    }
-}

src/lab12_singleton/ex1/sensors/RoadConditionSensor.java

@@ -1,10 +0,0 @@
-package lab12_singleton.ex1.sensors;
-
-import lab12_singleton.ex1.Sensor;
-
-public class RoadConditionSensor extends Sensor {
-    @Override
-    public String getName() {
-        return "Road Condition";
-    }
-}

src/lab12_singleton/ex1/sensors/SpeedSensor.java

@@ -1,10 +0,0 @@
-package lab12_singleton.ex1.sensors;
-
-import lab12_singleton.ex1.Sensor;
-
-public class SpeedSensor extends Sensor {
-    @Override
-    public String getName() {
-        return "Speed";
-    }
-}

src/lab12_singleton/ex1/sensors/TemperatureSensor.java

@@ -1,10 +0,0 @@
-package lab12_singleton.ex1.sensors;
-
-import lab12_singleton.ex1.Sensor;
-
-public class TemperatureSensor extends Sensor {
-    @Override
-    public String getName() {
-        return "Temperature";
-    }
-}

src/lab13_proxy/ex1/Image.java

@@ -1,27 +0,0 @@
-package lab13_proxy.ex1;
-
-public class Image {
-    protected final String path;
-    protected final String resolution;
-    protected boolean loaded = false;
-
-    public Image(String path, String resolution) {
-        this.path = path;
-        this.resolution = resolution;
-    }
-
-    public void load() {
-        if (!loaded) {
-            System.out.println("Image " + path + " is loaded in " + resolution + " resolution");
-            loaded = true;
-        }
-    }
-
-    public boolean isLoaded() {
-        return loaded;
-    }
-
-    public void showImage(User user) {
-        System.out.println("Image " + path + " is shown in " + resolution + " resolution for user " + user.getName());
-    }
-}

src/lab13_proxy/ex1/ImageProxy.java

@@ -1,24 +0,0 @@
-package lab13_proxy.ex1;
-
-public class ImageProxy extends Image {
-    private final Image lowResImage;
-    private final Image highResImage;
-
-    public ImageProxy(String path) {
-        super(path, "high");
-        lowResImage = new Image(path, "low");
-        highResImage = new Image(path, "high");
-    }
-
-    public void showImage(User user) {
-        System.out.println(user.getName() + " selects preview image " + path + " and wants to see its full resolution.");
-        if (RegistrationService.isRegistered(user)) {
-            highResImage.load();
-            highResImage.showImage(user);
-        } else {
-            System.out.println("User " + user.getName() + " is not registered. Showing preview image in low resolution");
-            lowResImage.load();
-            lowResImage.showImage(user);
-        }
-    }
-}

src/lab13_proxy/ex1/Main.java

@@ -1,19 +0,0 @@
-package lab13_proxy.ex1;
-
-public class Main {
-    public static void main(String[] args) {
-        User jean = new User("Jean");
-        User paul = new User("Paul");
-        User pierre = new User("Pierre");
-
-        RegistrationService.register(paul);
-
-        Image highResolutionImage1 = new ImageProxy("sample/veryHighResPhoto1.jpeg");
-        Image highResolutionImage2 = new ImageProxy("sample/veryHighResPhoto2.jpeg");
-        Image highResolutionImage3 = new ImageProxy("sample/veryHighResPhoto3.jpeg");
-
-        highResolutionImage1.showImage(jean);
-        highResolutionImage2.showImage(paul);
-        highResolutionImage3.showImage(pierre);
-    }
-}

src/lab13_proxy/ex1/RegistrationService.java

@@ -1,15 +0,0 @@
-package lab13_proxy.ex1;
-
-import java.util.ArrayList;
-
-public class RegistrationService {
-    private static final ArrayList<User> users = new ArrayList<>();
-    public static void register(User user) {
-        System.out.println(user.getName() + " is now registered");
-        users.add(user);
-    }
-
-    public static boolean isRegistered(User user) {
-        return users.contains(user);
-    }
-}

src/lab13_proxy/ex1/User.java

@@ -1,13 +0,0 @@
-package lab13_proxy.ex1;
-
-public class User {
-    private final String name;
-
-    public User(String name) {
-        this.name = name;
-    }
-
-    public String getName() {
-        return name;
-    }
-}

src/lab13_proxy/ex2/Account.java

@@ -1,36 +0,0 @@
-package lab13_proxy.ex2;
-
-import java.util.Random;
-
-public class Account {
-    private int balance;
-    private int accountNumber;
-    private String owner;
-
-    public Account(String owner, int startBalance) {
-        this.owner = owner;
-        this.balance = startBalance;
-        this.accountNumber = new Random().hashCode();
-    }
-
-    public void deposit(int amount) {
-        balance += amount;
-    }
-
-    public void withdraw(int amount) {
-        balance -= amount;
-    }
-
-    public String getOwner() {
-        return owner;
-    }
-
-    public int getBalance() {
-        return balance;
-    }
-
-    @Override
-    public String toString() {
-        return "account " + this.accountNumber + " belonging to " + this.owner;
-    }
-}

src/lab13_proxy/ex2/Bank.java

@@ -1,52 +0,0 @@
-package lab13_proxy.ex2;
-
-import java.util.ArrayList;
-
-public class Bank {
-    private final ArrayList<String> blacklistedClients = new ArrayList<>();
-
-    public void blacklist(String client) {
-        blacklistedClients.add(client);
-    }
-    public boolean isBlacklisted(String client) {
-        return blacklistedClients.contains(client);
-    }
-
-    public void deposit(String client, Account account, int amount) {
-        if (amount < 0) {
-            System.out.println("Cannot deposit a negative amount");
-            return;
-        }
-        if (isBlacklisted(client)) {
-            System.out.println(client + " is on a blacklist and does not have the right to DEPOSIT money into " + account);
-            return;
-        }
-
-        account.deposit(amount);
-        System.out.println(client + " has deposited " + amount + " on " + account + ". New balance is " + account.getBalance());
-    }
-
-    public void withdraw(String client, Account account, int amount) {
-        if (amount < 0) {
-            System.out.println("Cannot withdraw a negative amount");
-            return;
-        }
-        if (isBlacklisted(client)) {
-            System.out.println(client + " is on a blacklist and does not have the right to WITHDRAW money from " + account);
-            return;
-        }
-
-        if (!account.getOwner().equals(client)) {
-            System.out.println(client + " cannot WITHDRAW money from " + account + " because they are not the owner");
-            return;
-        }
-
-        if (account.getBalance() < amount) {
-            System.out.println(client + " cannot WITHDRAW money from " + account + " because there is not enough money on the account.");
-            return;
-        }
-
-        account.withdraw(amount);
-        System.out.println(client + " has withdrawn " + amount + " from " + account + ". New balance is " + account.getBalance());
-    }
-}

src/lab13_proxy/ex2/Main.java

@@ -1,18 +0,0 @@
-package lab13_proxy.ex2;
-
-public class Main {
-    public static void main(String[] args) {
-        Account account = new Account("Pascale", 16000);
-
-        Bank bank = new Bank();
-        bank.blacklist("Jean");
-        bank.blacklist("Pierre");
-
-        bank.deposit("Marcel", account, 1000);
-        bank.deposit("Jean", account, 1000);
-        bank.withdraw("Marcel", account, 1000);
-        bank.withdraw("Pascale", account, 1000000);
-        bank.withdraw("Pascale", account, 1000);
-        bank.withdraw("Pierre", account, 1000);
-    }
-}

src/lab14_strategy/ex1/AxeBehavior.java

@@ -1,8 +0,0 @@
-package lab14_strategy.ex1;
-
-public class AxeBehavior implements WeaponBehavior {
-    @Override
-    public String useWeapon() {
-        return "chops with an axe";
-    }
-}

src/lab14_strategy/ex1/Character.java

@@ -1,19 +0,0 @@
-package lab14_strategy.ex1;
-
-public abstract class Character {
-    private WeaponBehavior weapon;
-
-    public Character(WeaponBehavior weapon) {
-        this.weapon = weapon;
-    }
-
-    public void setWeapon(WeaponBehavior weapon) {
-        this.weapon = weapon;
-    }
-
-    public abstract String getName();
-
-    public void fight() {
-        System.out.println(getName() + " " + weapon.useWeapon());
-    }
-}

src/lab14_strategy/ex1/Game.java

@@ -1,25 +0,0 @@
-package lab14_strategy.ex1;
-
-import lab14_strategy.ex1.characters.King;
-import lab14_strategy.ex1.characters.Knight;
-import lab14_strategy.ex1.characters.Troll;
-import lab14_strategy.ex1.characters.Queen;
-import lab14_strategy.ex1.weapons.BowAndArrowBehavior;
-import lab14_strategy.ex1.weapons.KnifeBehavior;
-
-public class Game {
-    public static void main(String[] args) {
-        Character king = new King(new KnifeBehavior());
-        Character queen = new Queen(new BowAndArrowBehavior());
-        Character knight = new Knight(new SwordBehavior());
-        Character troll = new Troll(new AxeBehavior());
-
-        king.fight();
-        queen.fight();
-        knight.fight();
-        troll.fight();
-
-        king.setWeapon(new SwordBehavior());
-        king.fight();
-    }
-}

src/lab14_strategy/ex1/SwordBehavior.java

@@ -1,8 +0,0 @@
-package lab14_strategy.ex1;
-
-public class SwordBehavior implements WeaponBehavior {
-    @Override
-    public String useWeapon() {
-        return "swings a sword";
-    }
-}

src/lab14_strategy/ex1/WeaponBehavior.java

@@ -1,5 +0,0 @@
-package lab14_strategy.ex1;
-
-public interface WeaponBehavior {
-    String useWeapon();
-}

src/lab14_strategy/ex1/characters/King.java

@@ -1,15 +0,0 @@
-package lab14_strategy.ex1.characters;
-
-import lab14_strategy.ex1.Character;
-import lab14_strategy.ex1.WeaponBehavior;
-
-public class King extends Character {
-    public King(WeaponBehavior weapon) {
-        super(weapon);
-    }
-
-    @Override
-    public String getName() {
-        return "King";
-    }
-}

src/lab14_strategy/ex1/characters/Knight.java

@@ -1,15 +0,0 @@
-package lab14_strategy.ex1.characters;
-
-import lab14_strategy.ex1.Character;
-import lab14_strategy.ex1.WeaponBehavior;
-
-public class Knight extends Character {
-    public Knight(WeaponBehavior weapon) {
-        super(weapon);
-    }
-
-    @Override
-    public String getName() {
-        return "Knight";
-    }
-}

src/lab14_strategy/ex1/characters/Queen.java

@@ -1,15 +0,0 @@
-package lab14_strategy.ex1.characters;
-
-import lab14_strategy.ex1.Character;
-import lab14_strategy.ex1.WeaponBehavior;
-
-public class Queen extends Character {
-    public Queen(WeaponBehavior weapon) {
-        super(weapon);
-    }
-
-    @Override
-    public String getName() {
-        return "Queen";
-    }
-}

src/lab14_strategy/ex1/characters/Troll.java

@@ -1,15 +0,0 @@
-package lab14_strategy.ex1.characters;
-
-import lab14_strategy.ex1.Character;
-import lab14_strategy.ex1.WeaponBehavior;
-
-public class Troll extends Character {
-    public Troll(WeaponBehavior weapon) {
-        super(weapon);
-    }
-
-    @Override
-    public String getName() {
-        return "Troll";
-    }
-}

src/lab14_strategy/ex1/weapons/BowAndArrowBehavior.java

@@ -1,10 +0,0 @@
-package lab14_strategy.ex1.weapons;
-
-import lab14_strategy.ex1.WeaponBehavior;
-
-public class BowAndArrowBehavior implements WeaponBehavior {
-    @Override
-    public String useWeapon() {
-        return "shoots an arrow with a bow";
-    }
-}

src/lab14_strategy/ex1/weapons/KnifeBehavior.java

@@ -1,10 +0,0 @@
-package lab14_strategy.ex1.weapons;
-
-import lab14_strategy.ex1.WeaponBehavior;
-
-public class KnifeBehavior implements WeaponBehavior {
-    @Override
-    public String useWeapon() {
-        return "cuts with a knife";
-    }
-}

src/lab14_strategy/ex2/SortAlgorithm.java

@@ -1,5 +0,0 @@
-package lab14_strategy.ex2;
-
-public interface SortAlgorithm {
-    void sort(int[] vector);
-}

src/lab14_strategy/ex2/Sorter.java

@@ -1,21 +0,0 @@
-package lab14_strategy.ex2;
-
-public class Sorter {
-    private SortAlgorithm algorithm;
-    public void sort(int[] vector) {
-        algorithm.sort(vector);
-    }
-
-    public void setAlgorithm(SortAlgorithm algorithm) {
-        this.algorithm = algorithm;
-    }
-
-    public void showVectorData(int[] vector) {
-        StringBuilder sb = new StringBuilder();
-
-        for (int j : vector) {
-            sb.append(j).append("\t");
-        }
-        System.out.println(sb);
-    }
-}

src/lab14_strategy/ex2/StrategySortLauncher.java

@@ -1,35 +0,0 @@
-package lab14_strategy.ex2;
-
-import lab14_strategy.ex2.algorithms.BubbleSort;
-import lab14_strategy.ex2.algorithms.InsertionSort;
-import lab14_strategy.ex2.algorithms.SelectionSort;
-
-public class StrategySortLauncher {
-    public static void main(String[] args) {
-        StrategySortLauncher launcher = new StrategySortLauncher();
-        launcher.test();
-    }
-
-    public void test() {
-        int[] tab1 = { 99, 11, 2, 33, 12, 1, 0, 99, 34, 35 };
-        int[] tab2 = { 99, 11, 2, 33, 12, 1, 0, 99, 34, 35 };
-        int[] tab3 = { 99, 11, 2, 33, 12, 1, 0, 99, 34, 35 };
-
-        Sorter sorter = new Sorter();
-
-        System.out.println("test bubble sort");
-        sorter.setAlgorithm(new BubbleSort());
-        sorter.sort(tab1);
-        sorter.showVectorData(tab1);
-
-        System.out.println("test insert sort");
-        sorter.setAlgorithm(new InsertionSort());
-        sorter.sort(tab2);
-        sorter.showVectorData(tab2);
-
-        System.out.println("test selection sort");
-        sorter.setAlgorithm(new SelectionSort());
-        sorter.sort(tab3);
-        sorter.showVectorData(tab3);
-    }
-}

src/lab14_strategy/ex2/algorithms/BubbleSort.java

@@ -1,23 +0,0 @@
-package lab14_strategy.ex2.algorithms;
-
-import lab14_strategy.ex2.SortAlgorithm;
-
-public class BubbleSort implements SortAlgorithm {
-    @Override
-    public void sort(int[] vector) {
-        int temp;
-        int nbrePermutation = -1;
-        int nbreIteration = 0;
-        while (nbrePermutation != 0) {
-            nbrePermutation = 0;
-            for (int i=0; i<vector.length - nbreIteration - 1; i++) {
-                if (vector[i] > vector[i + 1]) {
-                    nbrePermutation++;
-                    temp = vector[i + 1];
-                    vector[i + 1] = vector[i];
-                    vector[i] = temp;
-                }
-            }
-        }
-    }
-}

src/lab14_strategy/ex2/algorithms/InsertionSort.java

@@ -1,22 +0,0 @@
-package lab14_strategy.ex2.algorithms;
-
-import lab14_strategy.ex2.SortAlgorithm;
-
-public class InsertionSort implements SortAlgorithm {
-    @Override
-    public void sort(int[] vector) {
-        int temp;
-        for (int i=1; i<vector.length; i++) {
-            temp = vector[i];
-            for (int j = i - 1; j >= 0; j--) {
-                if (vector[j] > temp) {
-                    vector[j + 1] = vector[j];
-                    vector[j] = temp;
-                } else {
-                    vector[j + 1] = temp;
-                    break;
-                }
-            }
-        }
-    }
-}

src/lab14_strategy/ex2/algorithms/SelectionSort.java

@@ -1,22 +0,0 @@
-package lab14_strategy.ex2.algorithms;
-
-import lab14_strategy.ex2.SortAlgorithm;
-
-public class SelectionSort implements SortAlgorithm {
-    @Override
-    public void sort(int[] vector) {
-        int temp, cursor = 0;
-        for (int i=0; i<vector.length; i++) {
-            temp = vector[i];
-            cursor = i;
-            for (int j = i; j < vector.length; j++) {
-                if (vector[j] < temp) {
-                    temp = vector[j];
-                    cursor = j;
-                }
-            }
-            vector[cursor] = vector[i];
-            vector[i] = temp;
-        }
-    }
-}

src/lab15_observer/ex1/Main.java

@@ -1,24 +0,0 @@
-package lab15_observer.ex1;
-
-public class Main {
-    public static void main(String[] args) {
-        PatientMonitoring pm = new PatientMonitoring(1, 140, 85);
-
-        MedicalEmployee jean = new MedicalEmployee("Jean", pm);
-        MedicalEmployee pauline = new MedicalEmployee("Pauline", pm);
-        MedicalEmployee matthieu = new MedicalEmployee("Matthieu", pm);
-        MedicalEmployee symeon = new MedicalEmployee("Symeon", pm);
-
-        pm.setBloodPressure(110);
-        pm.setPosition(3);
-
-        pm.setPulseOximetry(90);
-        pm.setPulseOximetry(70);
-        pm.setPosition(7);
-        pm.setBloodPressure(150);
-
-        pm.removeObserver(matthieu);
-        pm.setBloodPressure(145);
-        pm.setPosition(9);
-    }
-}

src/lab15_observer/ex1/MedicalEmployee.java

@@ -1,19 +0,0 @@
-package lab15_observer.ex1;
-
-public class MedicalEmployee implements PatientObserver {
-    private final String name;
-
-    public MedicalEmployee(String name, PatientMonitoring pm) {
-        this.name = name;
-        pm.registerObserver(this);
-    }
-
-    public String getName() {
-        return name;
-    }
-
-    @Override
-    public void update(Problem problem, PatientMonitoring pm) {
-        System.out.println(getName() + " has been notified of " + problem + " for patient " + pm);
-    }
-}

src/lab15_observer/ex1/PatientMonitoring.java

@@ -1,70 +0,0 @@
-package lab15_observer.ex1;
-
-import java.util.ArrayList;
-import java.util.List;
-
-public class PatientMonitoring {
-    private final List<PatientObserver> observers = new ArrayList<>();
-
-    private int position;
-    private int bloodPressure;
-    private int pulseOximetry;
-
-    public PatientMonitoring(int position, int bloodPressure, int pulseOximetry) {
-        this.position = position;
-        this.bloodPressure = bloodPressure;
-        this.pulseOximetry = pulseOximetry;
-    }
-
-    public void registerObserver(PatientObserver o) {
-        observers.add(o);
-    }
-
-    public void removeObserver(PatientObserver o) {
-        observers.remove(o);
-    }
-
-    private void notifyObservers(Problem problem) {
-        for (PatientObserver o : observers) {
-            o.update(problem, this);
-        }
-    }
-
-    public int getPosition() {
-        return position;
-    }
-    public int getBloodPressure() {
-        return bloodPressure;
-    }
-    public int getPulseOximetry() {
-        return pulseOximetry;
-    }
-
-    public void setPosition(int position) {
-        this.position = position;
-        notifyObservers(Problem.NO_PROBLEM);
-    }
-
-    public void setBloodPressure(int bloodPressure) {
-        this.bloodPressure = bloodPressure;
-        if (getBloodPressure() > 145) {
-            notifyObservers(Problem.BLOOD_PRESSURE);
-        } else {
-            notifyObservers(Problem.NO_PROBLEM);
-        }
-    }
-
-    public void setPulseOximetry(int pulseOximetry) {
-        this.pulseOximetry = pulseOximetry;
-        if (getPulseOximetry() > 85) {
-            notifyObservers(Problem.OXIMETRY);
-        } else {
-            notifyObservers(Problem.NO_PROBLEM);
-        }
-    }
-
-    @Override
-    public String toString() {
-        return "<Patient Position: " + position + ", BP: " + bloodPressure + ", PO: " + pulseOximetry + ">";
-    }
-}

src/lab15_observer/ex1/PatientObserver.java

@@ -1,5 +0,0 @@
-package lab15_observer.ex1;
-
-public interface PatientObserver {
-    void update(Problem problem, PatientMonitoring pm);
-}

src/lab15_observer/ex1/Problem.java

@@ -1,7 +0,0 @@
-package lab15_observer.ex1;
-
-public enum Problem {
-    NO_PROBLEM,
-    BLOOD_PRESSURE,
-    OXIMETRY
-}

src/lab15_observer/ex2/AnalogTimer.java

@@ -1,103 +0,0 @@
-package lab15_observer.ex2;
-
-public class AnalogTimer implements TimerObserver {
-    private final MyTimer timer;
-    private static final String[][] digits = {
-        {
-            "┌─┐",
-            "│ │",
-            "└─┘"
-        },
-        {
-            "  ╷",
-            "  │",
-            "  ╵"
-        },
-        {
-            "╶─┐",
-            "┌─┘",
-            "└─╴"
-        },
-        {
-            "╶─┐",
-            " ─┤",
-            "╶─┘"
-        },
-        {
-            "╷ ╷",
-            "└─┤",
-            "  ╵"
-        },
-        {
-            "┌─╴",
-            "└─┐",
-            "╶─┘"
-        },
-        {
-            "┌─╴",
-            "├─┐",
-            "└─┘"
-        },
-        {
-            "╶─┐",
-            "  │",
-            "  ╵"
-        },
-        {
-            "┌─┐",
-            "├─┤",
-            "└─┘"
-        },
-        {
-            "┌─┐",
-            "└─┤",
-            "╶─┘"
-        },
-    };
-
-    public AnalogTimer(MyTimer timer) {
-        this.timer = timer;
-        timer.registerObserver(this);
-    }
-
-    public void update(int hours, int minutes, int seconds) {
-        String[] lines = {"", "", ""};
-
-        addDigit(lines, hours / 10);
-        addSpace(lines);
-        addDigit(lines, hours % 10);
-
-        addSep(lines);
-
-        addDigit(lines, minutes / 10);
-        addSpace(lines);
-        addDigit(lines, minutes % 10);
-
-        addSep(lines);
-
-        addDigit(lines, seconds / 10);
-        addSpace(lines);
-        addDigit(lines, seconds % 10);
-
-        System.out.println(lines[0]);
-        System.out.println(lines[1]);
-        System.out.println(lines[2]);
-    }
-
-    private void addDigit(String[] lines, int digit) {
-        String[] parts = digits[digit];
-        for (int i = 0; i < 3; i++) {
-            lines[i] += parts[i];
-        }
-    }
-    private void addSpace(String[] lines) {
-        lines[0] += " ";
-        lines[1] += " ";
-        lines[2] += " ";
-    }
-    private void addSep(String[] lines) {
-        lines[0] += " o ";
-        lines[1] += "   ";
-        lines[2] += " o ";
-    }
-}

src/lab15_observer/ex2/ClockTimer.java

@@ -1,8 +0,0 @@
-package lab15_observer.ex2;
-
-public interface ClockTimer {
-    int getHour();
-    int getMinute();
-    int getSecond();
-    void tick();
-}

src/lab15_observer/ex2/DigitalTimer.java

@@ -1,15 +0,0 @@
-package lab15_observer.ex2;
-
-public class DigitalTimer implements TimerObserver {
-    private final MyTimer timer;
-
-    public DigitalTimer(MyTimer timer) {
-        this.timer = timer;
-        timer.registerObserver(this);
-    }
-
-    @Override
-    public void update(int hours, int minutes, int seconds) {
-        System.out.printf("Time: %02d:%02d:%02d%n", hours, minutes, seconds);
-    }
-}

src/lab15_observer/ex2/Main.java

@@ -1,10 +0,0 @@
-package lab15_observer.ex2;
-
-public class Main {
-    public static void main(String[] args) {
-        MyTimer clockTimer = new MyTimer();
-
-        new AnalogTimer(clockTimer);
-        new DigitalTimer(clockTimer);
-    }
-}

src/lab15_observer/ex2/MyTimer.java

@@ -1,53 +0,0 @@
-package lab15_observer.ex2;
-
-import java.util.*;
-
-public class MyTimer implements ClockTimer {
-    private final List<TimerObserver> observers = new ArrayList<>();
-    private Calendar cal;
-    private Timer timer;
-
-    public MyTimer() {
-        cal = Calendar.getInstance();
-        timer = new Timer();
-        timer.schedule(new TimerAction(), 0, 1000);
-    }
-
-    class TimerAction extends TimerTask {
-        @Override
-        public void run() {
-            cal = Calendar.getInstance();
-            tick();
-        }
-    }
-
-    @Override
-    public int getHour() {
-        return cal.get(Calendar.HOUR_OF_DAY);
-    }
-
-    @Override
-    public int getMinute() {
-        return cal.get(Calendar.MINUTE);
-    }
-
-    @Override
-    public int getSecond() {
-        return cal.get(Calendar.SECOND);
-    }
-
-    @Override
-    public void tick() {
-        for (TimerObserver o : observers) {
-            o.update(getHour(), getMinute(), getSecond());
-        }
-    }
-
-    public void registerObserver(TimerObserver o) {
-        observers.add(o);
-    }
-
-    public void removeObserver(TimerObserver o) {
-        observers.remove(o);
-    }
-}

src/lab15_observer/ex2/TimerObserver.java

@@ -1,5 +0,0 @@
-package lab15_observer.ex2;
-
-public interface TimerObserver{
-    void update(int hours, int minutes, int seconds);
-}

src/learn/simple_observer/ConcreteObserver.java

@@ -1,15 +0,0 @@
-package learn.simple_observer;
-
-public class ConcreteObserver implements Observer {
-    private ConcreteSubject subject;
-
-    public ConcreteObserver(ConcreteSubject subject) {
-        this.subject = subject;
-        subject.registerObserver(this);
-    }
-
-    @Override
-    public void update() {
-        System.out.println("Observer was notified: subject has new state: " + subject.getState());
-    }
-}

src/learn/simple_observer/ConcreteSubject.java

@@ -1,37 +0,0 @@
-package learn.simple_observer;
-
-import java.util.ArrayList;
-import java.util.List;
-
-public class ConcreteSubject implements Subject {
-    private List<Observer> observers = new ArrayList<>();
-    int state;
-
-    @Override
-    public void registerObserver(Observer o) {
-        observers.add(o);
-    }
-
-    @Override
-    public void removeObserver(Observer o) {
-        observers.remove(o);
-    }
-
-    @Override
-    public void notifyObservers() {
-        for (Observer o : observers) {
-            o.update();
-        }
-    }
-
-    public void setState(int state) {
-        this.state = state;
-        if (state > 50) {
-            notifyObservers();
-        }
-    }
-
-    public int getState() {
-        return state;
-    }
-}

src/learn/simple_observer/Main.java

@@ -1,12 +0,0 @@
-package learn.simple_observer;
-
-public class Main {
-    public static void main(String[] args) {
-        ConcreteSubject subject = new ConcreteSubject();
-        Observer observer = new ConcreteObserver(subject);
-        subject.setState(40);
-        subject.setState(100);
-        Observer observer2 = new ConcreteObserver(subject);
-        subject.setState(200);
-    }
-}

src/learn/simple_observer/Observer.java

@@ -1,5 +0,0 @@
-package learn.simple_observer;
-
-public interface Observer {
-    void update();
-}

src/learn/simple_observer/Subject.java

@@ -1,7 +0,0 @@
-package learn.simple_observer;
-
-public interface Subject {
-    void registerObserver(Observer o);
-    void removeObserver(Observer o);
-    void notifyObservers();
-}

src/learn/simple_proxy/Main.java

@@ -1,8 +0,0 @@
-package learn.simple_proxy;
-
-public class Main {
-    public static void main(String[] args) {
-        Subject subject = new Proxy();
-        subject.request();
-    }
-}

src/learn/simple_proxy/Proxy.java

@@ -1,11 +0,0 @@
-package learn.simple_proxy;
-
-public class Proxy implements Subject {
-    private RealSubject realSubject = new RealSubject();
-
-    @Override
-    public void request() {
-        System.out.println("Proxy does some preliminary job and checks");
-        realSubject.request();
-    }
-}

src/learn/simple_proxy/RealSubject.java

@@ -1,8 +0,0 @@
-package learn.simple_proxy;
-
-public class RealSubject implements Subject {
-    @Override
-    public void request() {
-        System.out.println("Real subject action");
-    }
-}

src/learn/simple_proxy/Subject.java

@@ -1,5 +0,0 @@
-package learn.simple_proxy;
-
-public interface Subject {
-    public void request();
-}

src/learn/simple_strategy/ConcreteStrategyA.java

@@ -1,8 +0,0 @@
-package learn.simple_strategy;
-
-public class ConcreteStrategyA implements Strategy {
-    @Override
-    public void algorithm() {
-        System.out.println("nice strategy A");
-    }
-}

src/learn/simple_strategy/ConcreteStrategyB.java

@@ -1,8 +0,0 @@
-package learn.simple_strategy;
-
-public class ConcreteStrategyB implements Strategy {
-    @Override
-    public void algorithm() {
-        System.out.println("nice strategy B");
-    }
-}

src/learn/simple_strategy/Context.java

@@ -1,17 +0,0 @@
-package learn.simple_strategy;
-
-public class Context {
-    private Strategy currentStrategy;
-
-    public Context(Strategy currentStrategy) {
-        this.currentStrategy = currentStrategy;
-    }
-
-    public void setCurrentStrategy(Strategy currentStrategy) {
-        this.currentStrategy = currentStrategy;
-    }
-
-    public void doSomeJob() {
-        currentStrategy.algorithm();
-    }
-}

src/learn/simple_strategy/Main.java

@@ -1,11 +0,0 @@
-package learn.simple_strategy;
-
-public class Main {
-    public static void main(String[] args) {
-        Context context = new Context(new ConcreteStrategyB());
-
-        context.doSomeJob();
-        context.setCurrentStrategy(new ConcreteStrategyA());
-        context.doSomeJob();
-    }
-}

src/learn/simple_strategy/Strategy.java

@@ -1,5 +0,0 @@
-package learn.simple_strategy;
-
-public interface Strategy {
-    void algorithm();
-}