Lab 1.08 finished lab

Lab-1.08/.gitignore

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+### IntelliJ IDEA ###
+out/
+!**/src/main/**/out/
+!**/src/test/**/out/
+
+### Eclipse ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+bin/
+!**/src/main/**/bin/
+!**/src/test/**/bin/
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+
+### VS Code ###
+.vscode/
+
+### Mac OS ###
+.DS_Store

Lab-1.08/Lab-1.08.iml

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+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

Lab-1.08/src/Main.java

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+import java.math.BigDecimal;
+import java.math.RoundingMode;
+import java.util.ArrayList;
+import java.util.List;
+
+class BigDecimalOperations {
+
+    public static double roundToHundredth(BigDecimal number) {
+        return number.setScale(2, RoundingMode.HALF_UP).doubleValue();
+    }
+
+    public static double invertSignAndRound(BigDecimal number) {
+        BigDecimal inverted = number.negate();
+        return inverted.setScale(1, RoundingMode.HALF_UP).doubleValue();
+    }
+}
+
+abstract class Car {
+    protected String vinNumber;
+    protected String make;
+    protected String model;
+    protected int mileage;
+
+    public Car(String vinNumber, String make, String model, int mileage) {
+        this.vinNumber = vinNumber;
+        this.make = make;
+        this.model = model;
+        this.mileage = mileage;
+    }
+
+    public abstract String getInfo();
+}
+
+class Sedan extends Car {
+    public Sedan(String vinNumber, String make, String model, int mileage) {
+        super(vinNumber, make, model, mileage);
+    }
+
+    @Override
+    public String getInfo() {
+        return String.format("Sedan [VIN: %s, Make: %s, Model: %s, Mileage: %d]", vinNumber, make, model, mileage);
+    }
+}
+
+class UtilityVehicle extends Car {
+    private boolean fourWheelDrive;
+
+    public UtilityVehicle(String vinNumber, String make, String model, int mileage, boolean fourWheelDrive) {
+        super(vinNumber, make, model, mileage);
+        this.fourWheelDrive = fourWheelDrive;
+    }
+
+    @Override
+    public String getInfo() {
+        return String.format("UtilityVehicle [VIN: %s, Make: %s, Model: %s, Mileage: %d, FourWheelDrive: %b]", vinNumber, make, model, mileage, fourWheelDrive);
+    }
+}
+
+class Truck extends Car {
+    private double towingCapacity;
+
+    public Truck(String vinNumber, String make, String model, int mileage, double towingCapacity) {
+        super(vinNumber, make, model, mileage);
+        this.towingCapacity = towingCapacity;
+    }
+
+    @Override
+    public String getInfo() {
+        return String.format("Truck [VIN: %s, Make: %s, Model: %s, Mileage: %d, TowingCapacity: %.2f]", vinNumber, make, model, mileage, towingCapacity);
+    }
+}
+
+abstract class Video {
+    protected String title;
+    protected int duration;
+
+    public Video(String title, int duration) {
+        this.title = title;
+        this.duration = duration;
+    }
+
+    public abstract String getInfo();
+}
+
+class TvSeries extends Video {
+    private int episodes;
+
+    public TvSeries(String title, int duration, int episodes) {
+        super(title, duration);
+        this.episodes = episodes;
+    }
+
+    @Override
+    public String getInfo() {
+        return String.format("TvSeries [Title: %s, Duration: %d minutes, Episodes: %d]", title, duration, episodes);
+    }
+}
+
+class Movie extends Video {
+    private double rating;
+
+    public Movie(String title, int duration, double rating) {
+        super(title, duration);
+        this.rating = rating;
+    }
+
+    @Override
+    public String getInfo() {
+        return String.format("Movie [Title: %s, Duration: %d minutes, Rating: %.1f]", title, duration, rating);
+    }
+}
+
+interface IntList {
+    void add(int number);
+    int get(int id);
+}
+
+class IntArrayList implements IntList {
+    private int[] array;
+    private int size;
+
+    public IntArrayList() {
+        array = new int[10];
+        size = 0;
+    }
+
+    @Override
+    public void add(int number) {
+        if (size == array.length) {
+            int newSize = (int) (array.length * 1.5);
+            int[] newArray = new int[newSize];
+            System.arraycopy(array, 0, newArray, 0, array.length);
+            array = newArray;
+        }
+        array[size++] = number;
+    }
+
+    @Override
+    public int get(int id) {
+        if (id < 0 || id >= size) {
+            throw new IndexOutOfBoundsException();
+        }
+        return array[id];
+    }
+}
+
+class IntVector implements IntList {
+    private List<Integer> list;
+
+    public IntVector() {
+        list = new ArrayList<>(20);
+    }
+
+    @Override
+    public void add(int number) {
+        list.add(number);
+        if (list.size() == list.size()) {
+            int newSize = list.size() * 2;
+            List<Integer> newList = new ArrayList<>(newSize);
+            newList.addAll(list);
+            list = newList;
+        }
+    }
+
+    @Override
+    public int get(int id) {
+        if (id < 0 || id >= list.size()) {
+            throw new IndexOutOfBoundsException();
+        }
+        return list.get(id);
+    }
+}
+
+public class Main {
+    public static void main(String[] args) {
+        BigDecimal num = new BigDecimal("4.2545");
+        System.out.println("Round to Hundredth: " + BigDecimalOperations.roundToHundredth(num));
+
+        num = new BigDecimal("1.2345");
+        System.out.println("Invert Sign and Round: " + BigDecimalOperations.invertSignAndRound(num));
+
+        Car sedan = new Sedan("1HGBH41JXMN109186", "Honda", "Civic", 12000);
+        Car utilityVehicle = new UtilityVehicle("1FTRW08L96KC85929", "Ford", "Explorer", 45000, true);
+        Car truck = new Truck("1GT12UEY1EZ351938", "Chevrolet", "Silverado", 80000, 9500);
+
+        System.out.println(sedan.getInfo());
+        System.out.println(utilityVehicle.getInfo());
+        System.out.println(truck.getInfo());
+
+        Video tvSeries = new TvSeries("Breaking Bad", 45, 62);
+        Video movie = new Movie("Inception", 148, 8.8);
+
+        System.out.println(tvSeries.getInfo());
+        System.out.println(movie.getInfo());
+
+        IntList arrayList = new IntArrayList();
+        IntList vectorList = new IntVector();
+
+        for (int i = 0; i < 12; i++) {
+            arrayList.add(i);
+            vectorList.add(i);
+        }
+
+        for (int i = 0; i < 12; i++) {
+            System.out.println("ArrayList get(" + i + "): " + arrayList.get(i));
+            System.out.println("VectorList get(" + i + "): " + vectorList.get(i));
+        }
+    }
+}