#28 - Java

Author: Josegs95

Roadmap/28 - SOLID LSP/java/Josegs95.java

@@ -0,0 +1,158 @@
+import java.util.Random;
+
+public class Josegs95 {
+    public static void main(String[] args) {
+        //Ejercicio
+        //Forma incorrecta
+        WrongAnimal animal1 = new WrongAnimal();
+        WrongAnimal snake1 = new WrongSnake();
+        WrongAnimal tiger1 = new WrongTiger();
+
+        animal1.putEggs();
+        snake1.putEggs();
+        tiger1.putEggs();
+        //Forma correcta
+        OviparousAnimal animal2 = new OviparousAnimal();
+        OviparousAnimal snake2 = new Snake();
+        MammalAnimal animal3 = new MammalAnimal();
+        MammalAnimal tiger2 = new Tiger();
+
+        animal2.putEggs();
+        snake2.putEggs();
+        animal3.breastfeed();
+        tiger2.breastfeed();
+
+        //Reto
+        new Josegs95().retoFinal();
+    }
+
+    public void retoFinal(){
+        Random rnd = new Random();
+        Vehicle vehicle1 = new Car(50);
+        Vehicle vehicle2 = new Train(100);
+        Vehicle vehicle3 = new Plane(150);
+        Vehicle[] vehicles = {vehicle1, vehicle2, vehicle3};
+
+        for (int i = 0; i < 50; i++){
+            if (rnd.nextBoolean())
+                vehicles[rnd.nextInt(vehicles.length)].accelerate();
+            else
+                vehicles[rnd.nextInt(vehicles.length)].brake();
+        }
+    }
+
+    //Clases incorrectas
+    public static class WrongAnimal{
+        public void putEggs(){
+            System.out.println("El animal pone huevos");
+        }
+    }
+    public static class WrongSnake extends WrongAnimal{
+        @Override
+        public void putEggs() {
+            System.out.println("La serpiente pone huevos");
+        }
+    }
+    public static class WrongTiger extends WrongAnimal{
+        @Override
+        public void putEggs() {
+            //throw new UnsupportedOperationException("Los tigres no ponen huevos");
+        }
+    }
+    //Clases correctas
+    public static class Animal{}
+    public static class OviparousAnimal extends Animal{
+        public void putEggs() {
+            System.out.println("El animal ovíparo pone huevos");
+        }
+    }
+    public static class MammalAnimal extends Animal{
+        public void breastfeed() {
+            System.out.println("El animal mamífero da de mamar");
+        }
+    }
+    public static class Snake extends OviparousAnimal{
+        @Override
+        public void putEggs() {
+            System.out.println("La serpiente pone huevos");
+        }
+    }
+    public static class Tiger extends MammalAnimal{
+        @Override
+        public void breastfeed() {
+            System.out.println("El tigre da de mamar");
+        }
+    }
+    //Reto
+    public class Vehicle{
+        private double speed;
+
+        public Vehicle(double speed){
+            this.speed = speed;
+        }
+
+        public void accelerate(){
+            ++speed;
+        }
+        public void brake(){
+            if (speed > 0)
+                --speed;
+        }
+
+        public double getSpeed() {
+            return speed;
+        }
+    }
+    public class Car extends Vehicle{
+
+        public Car(double speed) {
+            super(speed);
+        }
+
+        @Override
+        public void accelerate() {
+            super.accelerate();
+            System.out.println("El coche acelera y su velocidad es de " + super.getSpeed() + "Km/h");
+        }
+
+        @Override
+        public void brake() {
+            super.brake();
+            System.out.println("El coche frena y su velocidad es de " + super.getSpeed() + "Km/h");
+        }
+    }
+    public class Train extends Vehicle{
+        public Train(double speed) {
+            super(speed);
+        }
+
+        @Override
+        public void accelerate() {
+            super.accelerate();
+            System.out.println("El tren acelera y su velocidad es de " + super.getSpeed() + "Km/h");
+        }
+
+        @Override
+        public void brake() {
+            super.brake();
+            System.out.println("El tren frena y su velocidad es de " + super.getSpeed() + "Km/h");
+        }
+    }
+    public class Plane extends Vehicle{
+        public Plane(double speed) {
+            super(speed);
+        }
+
+        @Override
+        public void accelerate() {
+            super.accelerate();
+            System.out.println("El avión acelera y su velocidad es de " + super.getSpeed() + "Km/h");
+        }
+
+        @Override
+        public void brake() {
+            super.brake();
+            System.out.println("El avión frena y su velocidad es de " + super.getSpeed() + "Km/h");
+        }
+    }
+}