added lab1 ex1

src/lab1_decorator/ex1/AirbagDecorator.java

@@ -0,0 +1,22 @@
+package lab1_decorator.ex1;
+
+public class AirbagDecorator extends CarDecorator {
+    public AirbagDecorator(Car car) {
+        super(car);
+    }
+
+    @Override
+    public double getCost() {
+        return 10 + super.getCost();
+    }
+
+    @Override
+    public double getSecurityLevel() {
+        return 10 + super.getSecurityLevel();
+    }
+
+    @Override
+    public String getDescription() {
+        return super.getDescription() + ", Airbag System";
+    }
+}

src/lab1_decorator/ex1/AntiSlidingSystemDecorator.java

@@ -0,0 +1,22 @@
+package lab1_decorator.ex1;
+
+public class AntiSlidingSystemDecorator extends CarDecorator {
+    public AntiSlidingSystemDecorator(Car car) {
+        super(car);
+    }
+
+    @Override
+    public double getCost() {
+        return 20 + super.getCost();
+    }
+
+    @Override
+    public double getSecurityLevel() {
+        return 5 + super.getSecurityLevel();
+    }
+
+    @Override
+    public String getDescription() {
+        return super.getDescription() + ", Anti Sliding System";
+    }
+}

src/lab1_decorator/ex1/BreakingSystemDecorator.java

@@ -0,0 +1,22 @@
+package lab1_decorator.ex1;
+
+public class BreakingSystemDecorator extends CarDecorator {
+    public BreakingSystemDecorator(Car car) {
+        super(car);
+    }
+
+    @Override
+    public double getCost() {
+        return 6 + super.getCost();
+    }
+
+    @Override
+    public double getSecurityLevel() {
+        return 8 + super.getSecurityLevel();
+    }
+
+    @Override
+    public String getDescription() {
+        return super.getDescription() + ", Breaking System";
+    }
+}

src/lab1_decorator/ex1/Car.java

@@ -0,0 +1,7 @@
+package lab1_decorator.ex1;
+
+public interface Car {
+    String getDescription();
+    double getCost();
+    double getSecurityLevel();
+}

src/lab1_decorator/ex1/CarBerlin.java

@@ -0,0 +1,18 @@
+package lab1_decorator.ex1;
+
+public class CarBerlin implements Car {
+    @Override
+    public String getDescription() {
+        return "A beautiful Berlin";
+    }
+
+    @Override
+    public double getCost() {
+        return 100;
+    }
+
+    @Override
+    public double getSecurityLevel() {
+        return 2;
+    }
+}

src/lab1_decorator/ex1/CarBreak.java

@@ -0,0 +1,18 @@
+package lab1_decorator.ex1;
+
+public class CarBreak implements Car {
+    @Override
+    public String getDescription() {
+        return "A family break";
+    }
+
+    @Override
+    public double getCost() {
+        return 50;
+    }
+
+    @Override
+    public double getSecurityLevel() {
+        return 0;
+    }
+}

src/lab1_decorator/ex1/CarDecorator.java

@@ -0,0 +1,24 @@
+package lab1_decorator.ex1;
+
+public abstract class CarDecorator implements Car {
+    public Car car;
+    public String name;
+
+    public CarDecorator(Car car) {
+        this.car = car;
+    }
+
+    public String getDescription() {
+        return car.getDescription();
+    }
+
+    @Override
+    public double getCost() {
+        return car.getCost();
+    }
+
+    @Override
+    public double getSecurityLevel() {
+        return car.getSecurityLevel();
+    }
+}

src/lab1_decorator/ex1/CarDecoratorLauncher.java

@@ -0,0 +1,38 @@
+package lab1_decorator.ex1;
+
+public class CarDecoratorLauncher {
+
+    public static void main(String[] args) {
+        CarDecoratorLauncher launcher = new CarDecoratorLauncher();
+        launcher.launch();
+    }
+
+    public void launch() {
+        Car car1 = new CarBerlin();
+        car1 = new AirbagDecorator(car1);
+        car1 = new AirbagDecorator(car1);
+        car1 = new EngineDecorator(car1);
+        car1 = new ColorDecorator(car1);
+        printCarInfos(car1);
+
+        Car car2 = new CarSport();
+        car2 = new AntiSlidingSystemDecorator(car2);
+        car2 = new BreakingSystemDecorator(car2);
+        printCarInfos(car2);
+
+        Car car3 = new CarBreak();
+        car3 = new AirbagDecorator(car3);
+        car3 = new EngineDecorator(car3);
+        car3 = new ColorDecorator(car3);
+        car3 = new AntiSlidingSystemDecorator(car3);
+        car3 = new BreakingSystemDecorator(car3);
+        printCarInfos(car3);
+    }
+
+    public void printCarInfos(Car car) {
+        System.out.println("Car description : " + car.getDescription());
+        System.out.println("Car cost : " + car.getCost());
+        System.out.println("Car security level : " + car.getSecurityLevel());
+        System.out.println();
+    }
+}

src/lab1_decorator/ex1/CarSport.java

@@ -0,0 +1,18 @@
+package lab1_decorator.ex1;
+
+public class CarSport implements Car {
+    @Override
+    public String getDescription() {
+        return "A robust sport car";
+    }
+
+    @Override
+    public double getCost() {
+        return 300;
+    }
+
+    @Override
+    public double getSecurityLevel() {
+        return 1;
+    }
+}

src/lab1_decorator/ex1/ColorDecorator.java

@@ -0,0 +1,18 @@
+package lab1_decorator.ex1;
+
+
+public class ColorDecorator extends CarDecorator {
+    public ColorDecorator(Car car) {
+        super(car);
+    }
+
+    @Override
+    public double getCost() {
+        return 3 + super.getCost();
+    }
+
+    @Override
+    public String getDescription() {
+        return super.getDescription() + ", Color";
+    }
+}

src/lab1_decorator/ex1/EngineDecorator.java

@@ -0,0 +1,17 @@
+package lab1_decorator.ex1;
+
+public class EngineDecorator extends CarDecorator {
+    public EngineDecorator(Car car) {
+        super(car);
+    }
+
+    @Override
+    public double getCost() {
+        return 20 + super.getCost();
+    }
+
+    @Override
+    public String getDescription() {
+        return super.getDescription() + ", Engine";
+    }
+}