Lab is finished

Lab/pom.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>org.example</groupId>
+    <artifactId>Lab</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <properties>
+        <maven.compiler.source>25</maven.compiler.source>
+        <maven.compiler.target>25</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+</project>

Lab/src/main/java/org/example/CarInventorySystem/Car.java

@@ -0,0 +1,54 @@
+package org.example.CarInventorySystem;
+
+public abstract class Car {
+    private String vinNumber;
+    private String make;
+    private String model;
+    private 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 String getVinNumber() {
+        return vinNumber;
+    }
+
+    public void setVinNumber(String vinNumber) {
+        this.vinNumber = vinNumber;
+    }
+
+    public String getMake() {
+        return make;
+    }
+
+    public void setMake(String make) {
+        this.make = make;
+    }
+
+    public String getModel() {
+        return model;
+    }
+
+    public void setModel(String model) {
+        this.model = model;
+    }
+
+    public int getMileage() {
+        return mileage;
+    }
+
+    public void setMileage(int mileage) {
+        this.mileage = mileage;
+    }
+
+    public String getInfo() {
+        return "VIN number: "+getVinNumber()
+                + "\nmake: " + getMake()
+                + "\nmodel: " + getModel()
+                + "\nmileage: " + getMileage();
+    }
+}

Lab/src/main/java/org/example/CarInventorySystem/Sedan.java

@@ -0,0 +1,8 @@
+package org.example.CarInventorySystem;
+
+public class Sedan extends Car{
+
+    public Sedan(String vinNumber, String make, String model, int mileage) {
+        super(vinNumber, make, model, mileage);
+    }
+}

Lab/src/main/java/org/example/CarInventorySystem/Truck.java

@@ -0,0 +1,22 @@
+package org.example.CarInventorySystem;
+
+public 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 super.getInfo()+"\n towing capacity : "+towingCapacity;
+    }
+
+    public double getTowingCapacity() {
+        return towingCapacity;
+    }
+
+    public void setTowingCapacity(double towingCapacity) {
+        this.towingCapacity = towingCapacity;
+    }
+}

Lab/src/main/java/org/example/CarInventorySystem/UtilityVehicle.java

@@ -0,0 +1,23 @@
+package org.example.CarInventorySystem;
+
+public 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 super.getInfo()+"\n four wheel drive : "+(fourWheelDrive?"Yes":"No");
+    }
+
+    public boolean isFourWheelDrive() {
+        return fourWheelDrive;
+    }
+
+    public void setFourWheelDrive(boolean fourWheelDrive) {
+        this.fourWheelDrive = fourWheelDrive;
+    }
+}

Lab/src/main/java/org/example/IntListInterface/IntArrayList.java

@@ -0,0 +1,31 @@
+package org.example.IntListInterface;
+
+import org.example.VideoStreamingService.Movie;
+
+import java.util.Arrays;
+
+public class IntArrayList implements IntList{
+    private  int size=0;
+    private  int maxSize=10;
+    private  int[] numbers=new int[maxSize];
+    @Override
+    public void add(int number) {
+        if(size<maxSize){
+            numbers[size++]=number;
+        }else{
+            maxSize+= maxSize/2;
+            int[] newNumbers=new int[maxSize];
+            for(int i=0;i<numbers.length;i++) {
+                newNumbers[i] = numbers[i];
+            }
+            numbers=newNumbers;
+            System.out.println(maxSize);
+        }
+    }
+
+    @Override
+    public int get(int id) {
+        if(id>=0&&id<maxSize) return numbers[id];
+        return -1;
+    }
+}

Lab/src/main/java/org/example/IntListInterface/IntList.java

@@ -0,0 +1,6 @@
+package org.example.IntListInterface;
+
+public interface IntList {
+    void add(int number);
+    int get(int id);
+}

Lab/src/main/java/org/example/IntListInterface/IntVector.java

@@ -0,0 +1,28 @@
+package org.example.IntListInterface;
+
+import java.util.Arrays;
+
+public class IntVector implements IntList{
+    private  int size=0;
+    private  int maxSize=10;
+    private  int[] numbers=new int[maxSize];
+    @Override
+    public void add(int number) {
+        if(size<maxSize){
+            numbers[size++]=number;
+        }else{
+            maxSize*= 2;
+            int[] newNumbers=new int[maxSize];
+            for(int i=0;i<numbers.length;i++) {
+                newNumbers[i] = numbers[i];
+            }
+            numbers=newNumbers;
+            System.out.println(maxSize);
+        }
+    }
+
+    @Override
+    public int get(int id) {
+        return numbers[id];
+    }
+}

Lab/src/main/java/org/example/Main.java

@@ -0,0 +1,24 @@
+package org.example;
+
+import org.example.IntListInterface.IntArrayList;
+import org.example.IntListInterface.IntList;
+import org.example.IntListInterface.IntVector;
+
+import java.math.BigDecimal;
+import java.math.MathContext;
+import java.math.RoundingMode;
+
+//TIP To <b>Run</b> code, press <shortcut actionId="Run"/> or
+// click the <icon src="AllIcons.Actions.Execute"/> icon in the gutter.
+public class Main {
+    static void main() {
+        System.out.println(roundToHundredth(BigDecimal.valueOf(4.25255)));
+        System.out.println(roundToTenth(BigDecimal.valueOf(4.25255)));
+    }
+    public static double roundToHundredth(BigDecimal number){
+        return  number.setScale(2, RoundingMode.HALF_UP).doubleValue();
+    }
+    public static BigDecimal roundToTenth(BigDecimal number){
+        return  number.setScale(1, RoundingMode.HALF_UP).negate();
+    }
+}

Lab/src/main/java/org/example/VideoStreamingService/Movie.java

@@ -0,0 +1,22 @@
+package org.example.VideoStreamingService;
+
+public 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 super.getInfo()+"\nRating: "+rating;
+    }
+
+    public double getRating() {
+        return rating;
+    }
+
+    public void setRating(double rating) {
+        this.rating = rating;
+    }
+}

Lab/src/main/java/org/example/VideoStreamingService/TvSeries.java

@@ -0,0 +1,20 @@
+package org.example.VideoStreamingService;
+
+public 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 super.getInfo()+"\nEpisodes: "+episodes;
+    }
+    public int getEpisodes() {
+        return episodes;
+    }
+
+    public void setEpisodes(int episodes) {
+        this.episodes = episodes;
+    }
+}