Solve all exercises

JavaCourse/src/main/java/com/rinftech/practice/eight/Solution.java

@@ -0,0 +1,23 @@
+package com.rinftech.practice.eight;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class Solution {
+    public static void main(String[] args) {
+        List<String> list = new ArrayList<>();
+        list.add("Red");
+        list.add("Green");
+        list.add("Black");
+        list.add("White");
+        list.add("Pink");
+        int firstIndex = 1;
+        int secondIndex = 4;
+
+        String aux = list.get(firstIndex);
+        list.set(firstIndex, list.get(secondIndex));
+        list.set(secondIndex, aux);
+
+        System.out.println("The modified list: " + list);
+    }
+}

JavaCourse/src/main/java/com/rinftech/practice/five/Solution.java

@@ -0,0 +1,26 @@
+package com.rinftech.practice.five;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+public class Solution {
+    public static void main(String[] args) {
+        String [] firstArray = { "Python", "Java", "GoLang", "Lisp" };
+        String [] secondArray = { "Java", "C++", "Apples", "Hamburger", "Lisp" };
+
+        String [] resultArray = findCommonElements(firstArray, secondArray);
+        System.out.println("Common elements:");
+        for (String element : resultArray)
+            System.out.println(element);
+
+    }
+
+    public static String[] findCommonElements(String[] firstArray, String[] secondArray) {
+        List<String> auxList = new ArrayList<>();
+        for (String s : firstArray)
+            if (Arrays.asList(secondArray).contains(s))
+                auxList.add(s);
+        return auxList.toArray(new String[0]);
+    }
+}

JavaCourse/src/main/java/com/rinftech/practice/four/Car.java

@@ -0,0 +1,7 @@
+package com.rinftech.practice.four;
+
+public class Car extends Vehicle{
+    public Car(String make, String model, int year, String fuelType) {
+        super(make, model, year, fuelType);
+    }
+}

JavaCourse/src/main/java/com/rinftech/practice/four/Motorcycle.java

@@ -0,0 +1,7 @@
+package com.rinftech.practice.four;
+
+public class Motorcycle extends Vehicle{
+    public Motorcycle(String make, String model, int year, String fuelType) {
+        super(make, model, year, fuelType);
+    }
+}

JavaCourse/src/main/java/com/rinftech/practice/four/Solution.java

@@ -0,0 +1,33 @@
+package com.rinftech.practice.four;
+
+public class Solution {
+    public static void main(String[] args) {
+        Truck truck = new Truck("Man", "TGX", 2005, "gas");
+        double truckFuelEfficiency = truck.calculateFuelEfficiency(100, 12.5);
+        System.out.println(truck.getMake() + " " + truck.getModel() + " fuel efficiency = " + truckFuelEfficiency);
+        double truckDistanceTravelled = truck.calculateDistanceTraveled(100, 3);
+        System.out.println(truck.getMake() + " " + truck.getModel() + " distance travelled = " + truckDistanceTravelled);
+        double truckMaxSpeed = truck.calculateMaximumSpeed(20, 1.2);
+        System.out.println(truck.getMake() + " " + truck.getModel() + " max speed = " + truckMaxSpeed);
+
+        System.out.println();
+
+        Car car = new Car("BMW", "M5", 2020, "diesel");
+        double carFuelEfficiency = car.calculateFuelEfficiency(123.44, 8.5);
+        System.out.println(car.getMake() + " " + car.getModel() + " fuel efficiency = " + carFuelEfficiency);
+        double carDistanceTravelled = car.calculateDistanceTraveled(170, 2);
+        System.out.println(car.getMake() + " " + car.getModel() + " distance travelled = " + carDistanceTravelled);
+        double carMaxSpeed = car.calculateMaximumSpeed(50, 0.6);
+        System.out.println(car.getMake() + " " + car.getModel() + " max speed = " + carMaxSpeed);
+
+        System.out.println();
+
+        Motorcycle motorcycle = new Motorcycle("Harley", "Davidson", 2015, "gas");
+        double motorcycleFuelEfficiency = motorcycle.calculateFuelEfficiency(150, 11.5);
+        System.out.println(motorcycle.getMake() + " " + motorcycle.getModel() + " fuel efficiency = " + motorcycleFuelEfficiency);
+        double motorcycleDistanceTravelled = motorcycle.calculateDistanceTraveled(90, 5);
+        System.out.println(motorcycle.getMake() + " " + motorcycle.getModel() + " distance travelled = " + motorcycleDistanceTravelled);
+        double motorcycleMaxSpeed = motorcycle.calculateMaximumSpeed(30, 1.3);
+        System.out.println(motorcycle.getMake() + " " + motorcycle.getModel() + " max speed = " + motorcycleMaxSpeed);
+    }
+}

JavaCourse/src/main/java/com/rinftech/practice/four/Truck.java

@@ -0,0 +1,10 @@
+package com.rinftech.practice.four;
+
+public class Truck extends Vehicle{
+
+    public Truck(String make, String model, int year, String fuelType) {
+        super(make, model, year, fuelType);
+    }
+
+
+}