diff --git a/src/main/java/hw10/Book.java b/src/main/java/hw10/Book.java
new file mode 100644
index 0000000..7253056
--- /dev/null
+++ b/src/main/java/hw10/Book.java
@@ -0,0 +1,51 @@
+package hw10;
+
+public class Book {
+    private String name;
+    private int numberOfPages;
+    private String bookDepartment;
+    private String hardBookCover;
+    private Colors colors;
+
+    public Book(String Name, String BookDepartment, int numberOfPages, Colors color){
+        this.name = Name;
+        this.bookDepartment = BookDepartment;
+        this.numberOfPages = numberOfPages;
+        this.colors = color;
+    }
+    public Book(){}
+
+    public void setName(String Name){
+        this.name = Name;
+    }
+    public String getName(){
+        return name;
+    }
+    public void setNumberOfPages(int Number){
+        this.numberOfPages = Number;
+    }
+    public int getNumberOfPages(){
+        return numberOfPages;
+    }
+    public void setHardBookCover(String hardBookCover){
+        this.hardBookCover = hardBookCover;
+    }
+    public String getHardBookCover(){
+        return hardBookCover;
+    }
+    public void setBookDepartment(String department){
+        this.bookDepartment = department;
+    }
+    public void setColors(Colors color){
+        this.colors=color;
+    }
+    public Colors getColors(){
+        return colors;
+    }
+
+    public void printBook(){
+        System.out.println("I just finished reading book: " + name + ", this book having " + numberOfPages +
+                " pages. I have found this book in: "+ bookDepartment + " selection and the Covering of the book is in "
+                + colors + " color and " + hardBookCover + " cover");
+    }
+}
diff --git a/src/main/java/hw10/Colors.java b/src/main/java/hw10/Colors.java
new file mode 100644
index 0000000..4d572b9
--- /dev/null
+++ b/src/main/java/hw10/Colors.java
@@ -0,0 +1,11 @@
+package hw10;
+
+public enum Colors {
+    Red,
+    Green,
+    Blue,
+    Yellow,
+    Brown,
+    White,
+    Black
+}
diff --git a/src/main/java/hw10/FastFood.java b/src/main/java/hw10/FastFood.java
new file mode 100644
index 0000000..5510006
--- /dev/null
+++ b/src/main/java/hw10/FastFood.java
@@ -0,0 +1,60 @@
+package hw10;
+
+import java.util.Arrays;
+
+public class FastFood {
+    private String name;
+    private int driveTime;
+    private String menu;
+    //private Colors color;
+    private Colors[] colors;
+
+    public FastFood(String name, int driveTime, String menu, Colors[] colors) {
+        this.name = name;
+        this.driveTime = driveTime;
+        this.menu = menu;
+        this.colors = colors;
+    }
+
+    public FastFood(){}
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setDriveTime(int time) {
+        this.driveTime = time;
+    }
+
+    public int getDriveTime() {
+        return driveTime;
+    }
+
+    public void setMenu(String menu) {
+        this.menu =menu;
+    }
+    public String getMenu(){
+        return menu;
+    }
+
+    public void setColors(Colors[] colors){
+        this.colors = colors;
+    }
+    public Colors[] getColors(){
+        return colors;
+    }
+    public String printColorsArray(){
+        return Arrays.toString(colors);
+    }
+
+    public void printFastFood(){
+        System.out.println("Do you want to eat cheat meal at " + name + ", where Trade Mark in " +
+                printColorsArray() + " color, and driving time is "+ driveTime + " minutes. Menu is here: "+ menu);
+    }
+
+
+}
diff --git a/src/main/java/hw10/Hw10.java b/src/main/java/hw10/Hw10.java
new file mode 100644
index 0000000..326c17e
--- /dev/null
+++ b/src/main/java/hw10/Hw10.java
@@ -0,0 +1,58 @@
+package hw10;
+// Сделать 3 класса - в каждом классе по краней мере 3 атрибута.
+// Каждый аттрибут имеет setter и getter
+// Каждый класс имеет по краней мере 2 конструктора - default и полный (можно больше конструкторов)
+// создайте в каждом классе метод printClass() - для вывода всех полей на экран
+
+
+// По крайней мере один атрибут в одном классе должен быть array
+// Создайте в классе Work / main() по крайней мере 2 объекта каждого класса - один полным конструктором, один дефолтовым. Объект созданный дефолтовым конструктором заполните при помощи сеттеров
+// Выведите на экран эти объекты функцией printClass()
+
+public class Hw10 {
+    public static void main(String[] args) {
+//class 1
+        System.out.println("+++++++++++START+++++++++++");
+        Book book1 = new Book("World War 2", "History", 175, Colors.White);
+        book1.printBook();
+
+        Book book = new Book();
+        book.setName("Harry Potter 1");
+        book.setBookDepartment("Kids");
+        book.setHardBookCover("Hard");
+        book.setNumberOfPages(372);
+        book.setColors(Colors.Green);
+
+        book.printBook();
+//class 2
+        System.out.println("\n+++++++++++Another Class+++++++++++\n");
+        Colors[] colors = {Colors.Red, Colors.Brown, Colors.Black, Colors.Blue, Colors.Yellow, Colors.Green};
+        FastFood mcdonald = new FastFood("McDonald", 5, "breakfast, lunch, dinner", colors);
+        mcdonald.printFastFood();
+
+        FastFood wendys = new FastFood();
+        wendys.setName("ChickenHouse");
+        wendys.setDriveTime(20);
+        wendys.setMenu("All day chicken");
+
+        wendys.printFastFood();
+//class 3
+        System.out.println("\n+++++++++++Another Class+++++++++++\n");
+
+        Pants pants = new Pants();
+        pants.setType("short");
+        pants.setBrand("yo bro");
+        pants.setNumbersOfPockets(23);
+        pants.setSize(Size.S);
+
+        Pants jeans = new Pants(Size.L, "Levi's", "skinny jeans", 5);
+        jeans.showPants();
+
+        jeans.setBrand("Armani");
+        jeans.setNumbersOfPockets(2);
+        jeans.setType("High-Rise");
+        jeans.setSize(Size.XXL);
+
+        jeans.showPants();
+    }
+}
diff --git a/src/main/java/hw10/Pants.java b/src/main/java/hw10/Pants.java
new file mode 100644
index 0000000..53afbcb
--- /dev/null
+++ b/src/main/java/hw10/Pants.java
@@ -0,0 +1,48 @@
+package hw10;
+
+public class Pants {
+    private Size sizes;
+    private String brand;
+    private String type;
+    private int numbersOfPockets;
+
+    public Pants(Size sizes, String brand, String type, int numbersOfPockets){
+        this.sizes=sizes;
+        this.brand=brand;
+        this.numbersOfPockets = numbersOfPockets;
+        this.type = type;
+    }
+
+    public Pants(){}
+
+    public void setBrand(String Brand) {
+        this.brand = Brand;
+    }
+    public String getBrand(){
+        return brand;
+    }
+    public void setType(String type){
+        this.type =type;
+    }
+    public String getType(){
+        return type;
+    }
+    public void setNumbersOfPockets(int number){
+        this.numbersOfPockets =number;
+    }
+    public int getNumbersOfPockets(){
+        return numbersOfPockets;
+    }
+    public void setSize(Size size){
+        this.sizes=size;
+    }
+    public Size getSizes(){
+        return sizes;
+    }
+
+    public void showPants(){
+        System.out.println("My love " + type + " style of the pants, and this is originally from " + brand
+                + " brand. I'm using "+ sizes + " size, and it's having " + numbersOfPockets + " pockets.");
+    }
+
+}
diff --git a/src/main/java/hw10/Size.java b/src/main/java/hw10/Size.java
new file mode 100644
index 0000000..ade8334
--- /dev/null
+++ b/src/main/java/hw10/Size.java
@@ -0,0 +1,9 @@
+package hw10;
+
+public enum Size {
+    S,
+    M,
+    L,
+    XL,
+    XXL
+}
diff --git a/src/main/java/hw11/App.java b/src/main/java/hw11/App.java
new file mode 100644
index 0000000..23073e8
--- /dev/null
+++ b/src/main/java/hw11/App.java
@@ -0,0 +1,21 @@
+package hw11;
+//Сделать Enum (или 2 enum)
+//Сделать 2 класса - в первом классе атрибут сделать типа Enum
+//Во  втором классе - атрибут типа Enum[]
+
+public class App {
+    public static void main(String[] args) {
+        Stores[] store = {Stores.Target};
+        Shopping usr = new Shopping(Brands.Gucci, store, "Kevin", 25000);
+        usr.printShopping();
+
+
+        Brands[] brand = {Brands.Chanel, Brands.Dior, Brands.LouisVuitton, Brands.Versace};
+        Stores[] store2 = {Stores.Target, Stores.BestBuy, Stores.HomeDepot, Stores.Macys, Stores.Walmart, Stores.Marshall};
+        Dressing dressUp= new Dressing(brand, store2, "Bag", 199);
+
+        dressUp.printDressing();
+
+
+    }
+}
diff --git a/src/main/java/hw11/Brands.java b/src/main/java/hw11/Brands.java
new file mode 100644
index 0000000..2328868
--- /dev/null
+++ b/src/main/java/hw11/Brands.java
@@ -0,0 +1,10 @@
+package hw11;
+
+public enum Brands {
+    Chanel,
+    Dior,
+    Gucci,
+    Versace,
+    LouisVuitton,
+    Levis
+}
diff --git a/src/main/java/hw11/Dressing.java b/src/main/java/hw11/Dressing.java
new file mode 100644
index 0000000..7ccc877
--- /dev/null
+++ b/src/main/java/hw11/Dressing.java
@@ -0,0 +1,58 @@
+package hw11;
+
+import java.util.Arrays;
+
+public class Dressing {
+
+    private Brands[] brand;
+    private Stores[] store;
+    private String type;
+    private int price;
+
+    public Dressing() {
+    }
+
+    public Dressing(Brands[] brand, Stores[] store, String type, int price) {
+        this.brand = brand;
+        this.store = store;
+        this.type = type;
+        this.price = price;
+    }
+
+    public Brands[] getBrand() {
+        return brand;
+    }
+
+    public void setBrand(Brands[] brand) {
+        this.brand = brand;
+    }
+
+    public Stores[] getStore() {
+        return store;
+    }
+
+    public void setStore(Stores[] store) {
+        this.store = store;
+    }
+
+    public String getType() {
+        return type;
+    }
+
+    public void setType(String type) {
+        this.type = type;
+    }
+
+    public int getPrice() {
+        return price;
+    }
+
+    public void setPrice(int price) {
+        this.price = price;
+    }
+
+    public void printDressing(){
+        System.out.println("Hey! \n I just bought a " + type + " in " + Arrays.toString(store) +
+                " store, and it cost only $" + price + " dollars, and this is a "+Arrays.toString(brand) + " brand.");
+    }
+}
diff --git a/src/main/java/hw11/Shopping.java b/src/main/java/hw11/Shopping.java
new file mode 100644
index 0000000..906cbca
--- /dev/null
+++ b/src/main/java/hw11/Shopping.java
@@ -0,0 +1,59 @@
+package hw11;
+
+import java.util.Arrays;
+
+public class Shopping {
+    private Brands brand;
+    private Stores[] store;
+    private String name;
+    private int savingAccount;
+
+    public Shopping(Brands brand, Stores[] store, String name, int savingAccount) {
+        this.brand = brand;
+        this.store = store;
+        this.name = name;
+        this.savingAccount = savingAccount;
+    }
+    public Shopping(){}
+
+    public Brands getBrand() {
+        return brand;
+    }
+
+    public void setBrand(Brands brand) {
+        this.brand = brand;
+    }
+
+    public Stores[] getStore() {
+        return store;
+    }
+
+    public void setStore(Stores[] store) {
+        this.store = store;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public int getSavingAccount() {
+        return savingAccount;
+    }
+
+    public void setSavingAccount(int savingAccount) {
+        this.savingAccount = savingAccount;
+    }
+
+    public void printShopping() {
+        System.out.println("Shopping{" +
+                "brand=" + brand +
+                ", store=" + Arrays.toString(store) +
+                ", name='" + name + '\'' +
+                ", savingAccount=" + savingAccount +
+                '}');
+    }
+}
diff --git a/src/main/java/hw11/Stores.java b/src/main/java/hw11/Stores.java
new file mode 100644
index 0000000..df9ef33
--- /dev/null
+++ b/src/main/java/hw11/Stores.java
@@ -0,0 +1,12 @@
+package hw11;
+
+public enum Stores {
+    Target,
+    Walmart,
+    BestBuy,
+    HomeDepot,
+    Lowes,
+    Marshall,
+    Macys
+}
+
diff --git a/src/main/java/hw11/task2/App.java b/src/main/java/hw11/task2/App.java
new file mode 100644
index 0000000..262a66b
--- /dev/null
+++ b/src/main/java/hw11/task2/App.java
@@ -0,0 +1,14 @@
+package hw11.task2;
+
+public class App {
+    public static void main(String[] args) {
+        Apple iPhone = new Apple("Apple"," SE", 2020, 128,"14 mpxl");
+        Xiaomi mi8 = new Xiaomi( "Mi","8", 2018, 64, 5, "9.0 Kitkat");
+        Samsung galaxy = new Samsung("Samsung", "Galaxy S11",2021, 512, 4,"USB-C");
+
+        System.out.println(iPhone + "  Brand is: " + iPhone.getBrand());
+        System.out.println(mi8.getAndroidVersion());
+        System.out.println(galaxy.getBrand() + " is using " +galaxy.getChargingPort() + " charging port");
+
+    }
+}
diff --git a/src/main/java/hw11/task2/Apple.java b/src/main/java/hw11/task2/Apple.java
new file mode 100644
index 0000000..265a774
--- /dev/null
+++ b/src/main/java/hw11/task2/Apple.java
@@ -0,0 +1,30 @@
+package hw11.task2;
+
+public class Apple extends MobilePhone {
+    private String camera;
+
+    public Apple(String brand, String version, int releaseYear, int storage, String camera) {
+        super(brand, version, releaseYear, storage);
+        this.camera = camera;
+    }
+
+
+    public String getCamera() {
+        return camera;
+    }
+
+    public void setCamera(String camera) {
+        this.camera = camera;
+    }
+
+    @Override
+    public String toString() {
+        return "Apple{" +
+                "camera='" + camera + '\'' +
+                ", brand='" + brand + '\'' +
+                ", version='" + version + '\'' +
+                ", releaseYear=" + releaseYear +
+                ", capacity=" + capacity +
+                '}';
+    }
+}
diff --git a/src/main/java/hw11/task2/MobilePhone.java b/src/main/java/hw11/task2/MobilePhone.java
new file mode 100644
index 0000000..cea455d
--- /dev/null
+++ b/src/main/java/hw11/task2/MobilePhone.java
@@ -0,0 +1,50 @@
+package hw11.task2;
+
+public class MobilePhone {
+    protected String brand;
+    protected String version;
+    protected int releaseYear;
+    protected int capacity;
+
+    public MobilePhone(String brand, String version, int releaseYear, int storage) {
+        this.brand = brand;
+        this.version = version;
+        this.releaseYear = releaseYear;
+        this.capacity = storage;
+    }
+
+    public MobilePhone() {
+    }
+
+    public String getBrand() {
+        return brand;
+    }
+
+    public void setBrand(String brand) {
+        this.brand = brand;
+    }
+
+    public String getVersion() {
+        return version;
+    }
+
+    public void setVersion(String version) {
+        this.version = version;
+    }
+
+    public int getReleaseYear() {
+        return releaseYear;
+    }
+
+    public void setReleaseYear(int releaseYear) {
+        this.releaseYear = releaseYear;
+    }
+
+    public int getCapacity() {
+        return capacity;
+    }
+
+    public void setCapacity(int storage) {
+        this.capacity = storage;
+    }
+}
diff --git a/src/main/java/hw11/task2/Samsung.java b/src/main/java/hw11/task2/Samsung.java
new file mode 100644
index 0000000..df70ed3
--- /dev/null
+++ b/src/main/java/hw11/task2/Samsung.java
@@ -0,0 +1,40 @@
+package hw11.task2;
+
+public class Samsung extends MobilePhone{
+    private int numbersOfCameras;
+    private String chargingPort;
+
+    public Samsung(String brand, String version, int releaseYear, int storage, int numbersOfCameras, String chargingPort) {
+        super(brand, version, releaseYear, storage);
+        this.numbersOfCameras = numbersOfCameras;
+        this.chargingPort = chargingPort;
+    }
+
+    public int getNumbersOfCameras() {
+        return numbersOfCameras;
+    }
+
+    public void setNumbersOfCameras(int numbersOfCameras) {
+        this.numbersOfCameras = numbersOfCameras;
+    }
+
+    public String getChargingPort() {
+        return chargingPort;
+    }
+
+    public void setChargingPort(String chargingPort) {
+        this.chargingPort = chargingPort;
+    }
+
+    @Override
+    public String toString() {
+        return "Samsung{" +
+                "numbersOfCameras=" + numbersOfCameras +
+                ", chargingPort='" + chargingPort + '\'' +
+                ", brand='" + brand + '\'' +
+                ", version='" + version + '\'' +
+                ", releaseYear=" + releaseYear +
+                ", capacity=" + capacity +
+                '}';
+    }
+}
diff --git a/src/main/java/hw11/task2/Xiaomi.java b/src/main/java/hw11/task2/Xiaomi.java
new file mode 100644
index 0000000..b24f3aa
--- /dev/null
+++ b/src/main/java/hw11/task2/Xiaomi.java
@@ -0,0 +1,42 @@
+package hw11.task2;
+
+public class Xiaomi extends MobilePhone {
+    private int size;
+    private String androidVersion;
+
+
+    public Xiaomi(String brand, String version, int releaseYear, int storage, int size, String androidVersion) {
+        super(brand, version, releaseYear, storage);
+        this.size = size;
+        this.androidVersion = androidVersion;
+    }
+
+
+    public int getSize() {
+        return size;
+    }
+
+    public void setSize(int size) {
+        this.size = size;
+    }
+
+    public String getAndroidVersion() {
+        return androidVersion;
+    }
+
+    public void setAndroidVersion(String androidVersion) {
+        this.androidVersion = androidVersion;
+    }
+
+    @Override
+    public String toString() {
+        return "Xiaomi{" +
+                "size=" + size +
+                ", androidVersion='" + androidVersion + '\'' +
+                ", brand='" + brand + '\'' +
+                ", version='" + version + '\'' +
+                ", releaseYear=" + releaseYear +
+                ", capacity=" + capacity +
+                '}';
+    }
+}
diff --git a/src/main/java/hw12/App.java b/src/main/java/hw12/App.java
new file mode 100644
index 0000000..cda6409
--- /dev/null
+++ b/src/main/java/hw12/App.java
@@ -0,0 +1,33 @@
+package hw12;
+
+public class App {
+    public static void main(String[] args) {
+
+        Wheels Tractor1 = new Tractor(100, "latest model", "Automatic");
+        Tractor1.size();
+        Tractor1.psi();
+
+        System.out.println("___________________++++++++++++++++++++++++++++++++__________________________");
+
+        Car HondaCivic = new Car("Civic", "blue", 2012, 7);
+        System.out.println(HondaCivic.toString());
+        System.out.println("\n******************************************");
+        HondaCivic.pressHorn();
+        System.out.println("\n******************************************");
+        HondaCivic.turnLeft();
+        System.out.println("\n******************************************");
+
+
+        System.out.println("___________________++++++++++++++++++++++++++++++++__________________________");
+
+        Tractor JohnDeer = new Tractor(22590,"TP-90", "Manual");
+        JohnDeer.mustBeRounded();
+        System.out.println("\n******************************************");
+        JohnDeer.mustHaveHorn();
+        System.out.println("\n******************************************");
+        JohnDeer.psi();
+        System.out.println("\n******************************************");
+        JohnDeer.size();
+
+    }
+}
diff --git a/src/main/java/hw12/Car.java b/src/main/java/hw12/Car.java
new file mode 100644
index 0000000..2e72637
--- /dev/null
+++ b/src/main/java/hw12/Car.java
@@ -0,0 +1,50 @@
+package hw12;
+
+public class Car implements SteeringWheel, Wheels {
+    private String model;
+    private String color;
+    private int manufactureYear;
+    private int numbersOfSeats;
+
+    public Car(String model, String color, int manufactureYear, int numbersOfSeats) {
+        this.model = model;
+        this.color = color;
+        this.manufactureYear = manufactureYear;
+        this.numbersOfSeats = numbersOfSeats;
+    }
+
+    public String toString() {
+        return "Car{" +
+                "\nModel='" + model + '\'' +
+                ", \ncolor='" + color + '\'' +
+                ", \nmanufactureYear=" + manufactureYear +
+                ", \nnumbersOfSeats=" + numbersOfSeats +
+                '}';
+    }
+
+    public void pressHorn(){
+        System.out.println("Beeeeeeeeeeeeep");
+    }
+    public void turnLeft(){
+        System.out.println("You are turning left");
+    }
+    public void turnRight(){
+        System.out.println("You are going right");
+    }
+
+    public void mustBeRounded() {
+        System.out.println("Steering Wheel is rounded ");
+    }
+
+    public void mustHaveHorn() {
+        System.out.println("You-whoo we can beep");
+    }
+
+    public void size() {
+        System.out.println("Radius of my wheels is: 22' ");
+    }
+
+    public void psi() {
+        System.out.println("Pressure in a wheel is 35 psi");
+    }
+}
diff --git a/src/main/java/hw12/SteeringWheel.java b/src/main/java/hw12/SteeringWheel.java
new file mode 100644
index 0000000..e957886
--- /dev/null
+++ b/src/main/java/hw12/SteeringWheel.java
@@ -0,0 +1,6 @@
+package hw12;
+
+public interface SteeringWheel {
+    void mustBeRounded();
+    void mustHaveHorn();
+}
diff --git a/src/main/java/hw12/Tractor.java b/src/main/java/hw12/Tractor.java
new file mode 100644
index 0000000..feaf576
--- /dev/null
+++ b/src/main/java/hw12/Tractor.java
@@ -0,0 +1,30 @@
+package hw12;
+
+public class Tractor implements Wheels, SteeringWheel {
+    private int loadCapacity;
+    private String model;
+    private String gearType;
+
+    public Tractor(int loadCapacity, String model, String gearType) {
+        this.loadCapacity = loadCapacity;
+        this.model = model;
+        this.gearType = gearType;
+    }
+
+
+    public void mustBeRounded() {
+        System.out.println("bigggggg steering wheeel");
+    }
+
+    public void mustHaveHorn() {
+        System.out.println("Brrrrrrrr");
+    }
+
+    public void size() {
+        System.out.println("Wheel Size 57' ");
+    }
+
+    public void psi() {
+        System.out.println("90 psi");
+    }
+}
diff --git a/src/main/java/hw12/Wheels.java b/src/main/java/hw12/Wheels.java
new file mode 100644
index 0000000..522198f
--- /dev/null
+++ b/src/main/java/hw12/Wheels.java
@@ -0,0 +1,6 @@
+package hw12;
+
+public interface Wheels {
+    void size();
+    void psi();
+}
diff --git a/src/main/java/hw13/Bed.java b/src/main/java/hw13/Bed.java
new file mode 100644
index 0000000..2101b5d
--- /dev/null
+++ b/src/main/java/hw13/Bed.java
@@ -0,0 +1,62 @@
+package hw13;
+
+import java.util.Arrays;
+
+public class Bed {
+    private String frame;
+    private BedSizes[] sizes;
+    private int numbersOfSprings;
+    private String mattressType;
+
+    public Bed(String frame, BedSizes[] sizes, int numbersOfSprings, String mattressType) {
+        this.frame = frame;
+        this.sizes = sizes;
+        this.numbersOfSprings = numbersOfSprings;
+        this.mattressType = mattressType;
+    }
+
+    public Bed() {
+    }
+
+    public String getFrame() {
+        return frame;
+    }
+
+    public void setFrame(String frame) {
+        this.frame = frame;
+    }
+
+    public BedSizes[] getSizes() {
+        return sizes;
+    }
+
+    public void setSizes(BedSizes[] sizes) {
+        this.sizes = sizes;
+    }
+
+    public int getNumbersOfSprings() {
+        return numbersOfSprings;
+    }
+
+    public void setNumbersOfSprings(int numbersOfSprings) {
+        this.numbersOfSprings = numbersOfSprings;
+    }
+
+    public String getMattressType() {
+        return mattressType;
+    }
+
+    public void setMattressType(String mattressType) {
+        this.mattressType = mattressType;
+    }
+
+    @Override
+    public String toString() {
+        return "Bed{" +
+                "frame='" + frame + '\'' +
+                ", sizes=" + Arrays.toString(sizes) +
+                ", numbersOfSprings=" + numbersOfSprings +
+                ", mattressType='" + mattressType + '\'' +
+                '}';
+    }
+}
diff --git a/src/main/java/hw13/BedSizes.java b/src/main/java/hw13/BedSizes.java
new file mode 100644
index 0000000..e30d33d
--- /dev/null
+++ b/src/main/java/hw13/BedSizes.java
@@ -0,0 +1,8 @@
+package hw13;
+
+public enum BedSizes {
+    Crib,
+    Full,
+    Queen,
+    King
+}
diff --git a/src/main/java/hw13/Practice_ArrayList.java b/src/main/java/hw13/Practice_ArrayList.java
new file mode 100644
index 0000000..af397ad
--- /dev/null
+++ b/src/main/java/hw13/Practice_ArrayList.java
@@ -0,0 +1,57 @@
+package hw13;
+
+import java.util.List;
+
+public class Practice_ArrayList {
+    public static void main(String[] args) {
+        System.out.println("++++++++++++++++++++ArrayOfString+++++++++++++++++++++++++");
+        List<String> sports = new java.util.ArrayList<>();
+        sports.add("Soccer");
+        sports.add("Football");
+        sports.add("Basketball");
+        sports.add("Tennis");
+        sports.add("BeerPong");
+
+        System.out.println(sports.size());
+        System.out.println(sports);
+
+        sports.add(0,"Baseball");
+
+        System.out.println(sports);
+        sports.remove("BeerPong");
+        System.out.println(sports);
+
+
+        System.out.println("\n\n++++++++++++++++++++ArrayOfInt+++++++++++++++++++++++++");
+        List<Integer> income = new java.util.ArrayList<>();
+        income.add(1000);
+        income.add(500000);
+        income.add(3000);
+        System.out.println(income);
+
+        income.set(1,2000);
+        System.out.println(income);
+        System.out.println(income.contains(10000));
+
+        income.forEach(x-> System.out.println(x));
+
+
+        System.out.println("\n\n++++++++++++++++++++ArrayOfCustomClass+++++++++++++++++++++++++");
+        BedSizes[] size = {BedSizes.Crib, BedSizes.Full, BedSizes.King};
+        Bed kidsBed = new Bed("Wood", size,255, "Foam");
+        Bed singleAdult = new Bed("metal", size, 0, "foam");
+        Bed familyBed = new Bed();
+
+        List<Bed> beds = new java.util.ArrayList<>();
+        beds.add(kidsBed);
+        beds.add(singleAdult);
+        System.out.println(beds);
+
+        beds.removeAll(beds);
+        System.out.println(beds);
+        beds.add(familyBed);
+        beds.add(kidsBed);
+
+        beds.forEach(x -> System.out.println(x));
+    }
+}
diff --git a/src/main/java/hw13/Practice_HashMap.java b/src/main/java/hw13/Practice_HashMap.java
new file mode 100644
index 0000000..33e5b0a
--- /dev/null
+++ b/src/main/java/hw13/Practice_HashMap.java
@@ -0,0 +1,72 @@
+package hw13;
+
+import java.util.HashMap;
+import java.util.Map;
+
+public class Practice_HashMap {
+
+    public static void main(String[] args) {
+        System.out.println("++++++++++++++++++++HashMapOfString+++++++++++++++++++++++++");
+
+        Map<String,String> phone = new HashMap<>();
+
+        phone.put("iPhone", "11 PRO");
+        phone.put("Samsung", "S11");
+        phone.put("Google", "Pixel");
+        phone.put("HTC", "Mi9");
+
+        System.out.println(phone);
+
+        System.out.println("++++++++++++++++++++HashMapOfInteger+++++++++++++++++++++++++");
+        Map<Integer, Integer> luckyNumbers = new HashMap<>();
+        luckyNumbers.put(22,77);
+        luckyNumbers.put(1,986);
+        luckyNumbers.put(78,99);
+        luckyNumbers.size();
+
+        System.out.println(luckyNumbers);
+
+        System.out.println("++++++++++++++++++++HashMapOfIntegerAndString+++++++++++++++++++++++++");
+        Map<Integer, String> busMap = new HashMap<>();
+
+        busMap.put(1, "MainSt");
+        busMap.put(30, "Local");
+        busMap.put(999, "New York");
+        busMap.put(221, "Washington");
+        System.out.println(busMap);
+
+        busMap.replace(1,"Boston");
+        System.out.println(busMap);
+
+        busMap.remove(30);
+        System.out.println(busMap);
+
+        for(Map.Entry<Integer,String> set:busMap.entrySet()){
+            System.out.println(set.getKey());
+            System.out.println(set.getValue());
+        }
+
+
+
+        System.out.println("++++++++++++++++++++HashMapOfCustomClass+++++++++++++++++++++++++");
+
+        Map <String, BedSizes> bedrooms = new HashMap<>();
+        bedrooms.put("Small",BedSizes.Queen);
+        bedrooms.put("Big", BedSizes.King);
+        bedrooms.put("Basement", BedSizes.Full);
+        bedrooms.put("Attic",BedSizes.Full );
+        System.out.println(bedrooms);
+
+        System.out.println(bedrooms.keySet());
+
+
+        bedrooms.put("Small", BedSizes.Crib);
+        System.out.println(bedrooms);
+
+        System.out.println(bedrooms.getOrDefault("small",BedSizes.Crib));
+
+        for (BedSizes bs : bedrooms.values()){
+            System.out.println(bs);
+        }
+    }
+}
diff --git a/src/main/java/hw5/HomeWork5.java b/src/main/java/hw5/HomeWork5.java
new file mode 100644
index 0000000..74f7a0e
--- /dev/null
+++ b/src/main/java/hw5/HomeWork5.java
@@ -0,0 +1,7 @@
+package hw5;
+
+public class HomeWork5 {
+    public static void main(String[] args) {
+        System.out.println("Yo BRO!!!");
+    }
+}
diff --git a/src/main/java/hw6/Task1.java b/src/main/java/hw6/Task1.java
new file mode 100644
index 0000000..55329d7
--- /dev/null
+++ b/src/main/java/hw6/Task1.java
@@ -0,0 +1,13 @@
+package hw6;
+
+public class Task1 {
+    public static void main(String[] args) {
+        sum(2,5);
+    }
+
+    public static void sum(int a, int b){
+        System.out.println("First number is: " + a);
+        System.out.println("Second number is: " + b);
+    }
+
+}
diff --git a/src/main/java/hw6/Task2.java b/src/main/java/hw6/Task2.java
new file mode 100644
index 0000000..c0831c5
--- /dev/null
+++ b/src/main/java/hw6/Task2.java
@@ -0,0 +1,16 @@
+package hw6;
+
+public class Task2 {
+
+    public static void main(String[] args) {
+
+        int c = sum(11,2);
+
+        System.out.println(c);
+    }
+
+    public static int sum (int a, int b){
+
+        return a + b;
+    }
+}
diff --git a/src/main/java/hw6/Task3.java b/src/main/java/hw6/Task3.java
new file mode 100644
index 0000000..9e49ba4
--- /dev/null
+++ b/src/main/java/hw6/Task3.java
@@ -0,0 +1,27 @@
+package hw6;
+
+public class Task3 {
+//Создайте метод isEven - который в качестве аргумента берет целое число и если оно четное возвращает true
+//если нечетное - возвращает false
+//вызовите этот метод внутри функии main(), сохраните результат в переменной и выведите результат на экран
+    public static void main(String[] args) {
+
+        int[] arr = {1,2,2,3,3,4,8,5,7,3,2,4,7};
+
+        for (int v: arr){
+            if (isEven(v)){
+                System.out.println(v);
+            }
+        }
+
+    }
+
+    public static boolean isEven(int number){
+        if(number%2 == 0){
+            System.out.println(number + " is Even");
+        } else {
+            System.out.println(number + " is Odd");
+        }
+        return false;
+    }
+}
diff --git a/src/main/java/hw7/Task7_1.java b/src/main/java/hw7/Task7_1.java
new file mode 100644
index 0000000..6e0ea63
--- /dev/null
+++ b/src/main/java/hw7/Task7_1.java
@@ -0,0 +1,20 @@
+package hw7;
+
+//1. Создайте метод sum - который в качестве аргумента берет int[] и возвращает его сумму.
+// вызовите этот метод из функции main() - подайте в качестве параматра {2,3,5,6,7,8}
+
+public class Task7_1 {
+    public static void main(String[] args) {
+        int[] x = {2, 3, 5, 6, 7, 8};
+        System.out.println("Sum of given array is: " + sum(x));
+    }
+
+    public static int sum(int[] x) {
+        int sum1 = 0;
+        for (int i : x) {
+            sum1 += i;
+        }
+        return sum1;
+    }
+}
+
diff --git a/src/main/java/hw7/Task7_2.java b/src/main/java/hw7/Task7_2.java
new file mode 100644
index 0000000..c48f3ce
--- /dev/null
+++ b/src/main/java/hw7/Task7_2.java
@@ -0,0 +1,19 @@
+package hw7;
+
+import java.util.Arrays;
+
+//2. Создайте метод sort - который в качестве аргумента берет int[] и выводит на экран сортированную последовательность по возрастанию.
+//вызовите этот метод внутри функии main()
+//подайте в качестве параматра {3,9,1,8,4,8,5}
+public class Task7_2 {
+    public static void main(String[] args) {
+
+        int[] arr = {3,9,1,8,4,8,5};
+        sort(arr);
+        System.out.println(Arrays.toString(arr));
+    }
+    public static void sort(int[] x){
+        Arrays.sort(x);
+
+    }
+}
diff --git a/src/main/java/hw7/Task7_3.java b/src/main/java/hw7/Task7_3.java
new file mode 100644
index 0000000..373b594
--- /dev/null
+++ b/src/main/java/hw7/Task7_3.java
@@ -0,0 +1,37 @@
+package hw7;
+
+// Создайте метод, который в качестве аргумента берет int[] и возвращает максимальное/минимальное значение
+//(группа мак - макчимальное/ группа win - минимальное)
+//подайте в качестве параматра {3,9,1,8,4,8,5}
+public class Task7_3 {
+    public static void main(String[] args) {
+        int[] arr = {3, 9, 1, 8, 4, 8, 5};
+
+        System.out.println("Maximum value of array is: " + maxValueInArray(arr));
+        System.out.println("Minimum value of array is: " + minValueInArray(arr));
+
+    }
+
+    public static int maxValueInArray(int[] xx) {
+        int max = xx[0];
+
+        for (int v : xx) {
+            if (v > max) {
+                max = v;
+
+            }
+        }
+        return max;
+    }
+
+    public static int minValueInArray(int[] xx) {
+        int min = xx[0];
+        for (int v : xx) {
+            if (v < min) {
+                min = v;
+
+            }
+        }
+        return min;
+    }
+}
diff --git a/src/main/java/hw8/CarType.java b/src/main/java/hw8/CarType.java
new file mode 100644
index 0000000..032df5c
--- /dev/null
+++ b/src/main/java/hw8/CarType.java
@@ -0,0 +1,10 @@
+package hw8;
+
+public enum CarType {
+    Sedan,
+    Coupe,
+    SUV,
+    Truck,
+    Minivan,
+    Van
+}
diff --git a/src/main/java/hw8/Hw8.java b/src/main/java/hw8/Hw8.java
new file mode 100644
index 0000000..347b297
--- /dev/null
+++ b/src/main/java/hw8/Hw8.java
@@ -0,0 +1,61 @@
+package hw8;
+
+import java.util.Scanner;
+
+public class Hw8 {
+    public static void main(String[] args) {
+        CarType Honda_Accord = CarType.Sedan;
+        CarType Dodge_RAM = CarType.Truck;
+        CarType RangeRover = CarType.SUV;
+        CarType MercedesBenz_Sprinter = CarType.Van;
+        CarType Honda_Odyssey = CarType.Minivan;
+        CarType Ford_Mustang = CarType.Coupe;
+
+        System.out.println(Ford_Mustang + " " + Honda_Accord + " " +  RangeRover + " " +  Dodge_RAM +
+                " " +Honda_Odyssey  + " " +   MercedesBenz_Sprinter);
+
+        System.out.println("\n--------------------------------------------------\n");
+
+        CarType[] Cars = {CarType.Coupe, CarType.Sedan,CarType.SUV, CarType.Truck, CarType.Minivan, CarType.Van};
+            for (CarType v : Cars){
+                System.out.println(v);
+             }
+
+        System.out.println("\n--------------------------------------------------\n");
+
+        Transportation Subway = Transportation.byRail;
+        Transportation Bike = Transportation.byRoad;
+        Transportation Car = Transportation.byRoad;
+        Transportation Deltaplane = Transportation.byAir;
+
+        System.out.println("Deltaplane is type of transportation " + Deltaplane);
+        System.out.println("Toyota Corolla is type of transportation " + Car);
+        System.out.println("Bike is type of transportation " + Bike);
+        System.out.println("Subway is type of transportation " + Subway);
+
+        System.out.println("\n--------------------------------------------------\n");
+
+        QA_Engineer jr = QA_Engineer.Junior;
+        QA_Engineer md = QA_Engineer.Middle;
+        QA_Engineer sr = QA_Engineer.Senior;
+        QA_Engineer sdet = QA_Engineer.SDET;
+        QA_Engineer pr = QA_Engineer.Principal;
+
+        Scanner scan = new Scanner(System.in);
+        System.out.println("Enter your income before taxes to determine your QA level: ");
+        int currentIncome = scan.nextInt();
+
+        if (currentIncome > 150000) {
+            System.out.println("You are " + pr + " Quality Assurance Engineer");
+            } else if (currentIncome > 120000) {
+                System.out.println("You are " + sdet + " Quality Assurance Engineer");
+                    } else if (currentIncome > 85000) {
+                        System.out.println("You are " + sr + " Quality Assurance Engineer");
+                            }else if (currentIncome > 65000) {
+                               System.out.println("You are " + sdet + " Quality Assurance Analyst");
+                                     } else if (currentIncome < 65000) {
+                                         System.out.println("You are " + jr + " Quality Assurance Analyst");
+        }
+    }
+
+}
diff --git a/src/main/java/hw8/QA_Engineer.java b/src/main/java/hw8/QA_Engineer.java
new file mode 100644
index 0000000..0d2d173
--- /dev/null
+++ b/src/main/java/hw8/QA_Engineer.java
@@ -0,0 +1,9 @@
+package hw8;
+
+public enum QA_Engineer {
+    Junior,
+    Middle,
+    Senior,
+    SDET,
+    Principal
+}
diff --git a/src/main/java/hw8/Transportation.java b/src/main/java/hw8/Transportation.java
new file mode 100644
index 0000000..c251aa8
--- /dev/null
+++ b/src/main/java/hw8/Transportation.java
@@ -0,0 +1,7 @@
+package hw8;
+
+public enum Transportation {
+    byAir,
+    byRail,
+    byRoad
+}
diff --git a/src/main/java/hw9/App.java b/src/main/java/hw9/App.java
new file mode 100644
index 0000000..bc43310
--- /dev/null
+++ b/src/main/java/hw9/App.java
@@ -0,0 +1,67 @@
+package hw9;
+
+// 1. Создайте 3 класса в которых есть аттрибуты и методы
+// 2. В классе App создайте функцию main() и создайте в ней по 2 объекта каждого класса - покажите как они работают
+public class App {
+    public static void main(String[] args) {
+        System.out.println("\n========Class 1========");
+//device 1
+        Phone iPhone = new Phone();
+
+        iPhone.Brand = "Apple";
+        iPhone.Camera = 48;
+        iPhone.Storage = 128;
+        iPhone.Color = "Red";
+        iPhone.ScreenSize = 5;
+
+        iPhone.printPhone();
+//device 2
+        Phone SamsungS9 = new Phone();
+
+        SamsungS9.Brand = "Apple";
+        SamsungS9.Storage = 512;
+        SamsungS9.Color = "Black";
+        System.out.println("\n \n");
+
+        SamsungS9.printPhone();
+
+        System.out.println("\n========Class 2========");
+//object 1
+        Car Lamborghini = new Car();
+
+        Lamborghini.Model = "Lamborghini Urus";
+        Lamborghini.Color = "Blue";
+        Lamborghini.Millage = 5310;
+        Lamborghini.Year = 2018;
+        Lamborghini.NewColor = "Orange";
+
+        Lamborghini.printCar();
+
+//object 2
+        Car VW = new Car();
+        VW.Model = "VW Passat B5";
+        VW.Millage = 125021;
+        VW.runCar();
+
+        System.out.println("\n========Class 3========");
+// Object 1
+        Student Peter = new Student();
+
+        Peter.Name = "Peter Skalzki";
+        Peter.GraduateYear = 2021;
+        Peter.Grade = "A+";
+        Peter.DateOfBirth = "10/10/2003";
+
+        Peter.Introduction();
+        Peter.Graduation();
+
+// Object 2
+        Student Olga = new Student();
+
+        Olga.Name = "Olga Unknown";
+        Olga.Grade = "B";
+        Olga.GraduateYear = 2012;
+
+        Olga.Graduation();
+    }
+}
diff --git a/src/main/java/hw9/Car.java b/src/main/java/hw9/Car.java
new file mode 100644
index 0000000..a6f0554
--- /dev/null
+++ b/src/main/java/hw9/Car.java
@@ -0,0 +1,17 @@
+package hw9;
+
+public class Car {
+    public String Model;
+    public String Color;
+    public int Millage;
+    public int Year;
+    public String NewColor;
+
+    public void printCar(){
+        System.out.println(Model + " is manufactured in " + Year + ", originally color was "
+                + Color + " but after remodeling it's become " + NewColor);
+    }
+    public void runCar() {
+        System.out.println("Current odometer in your " + Model + " is: " + Millage + " miles");
+    }
+}
diff --git a/src/main/java/hw9/Phone.java b/src/main/java/hw9/Phone.java
new file mode 100644
index 0000000..613daee
--- /dev/null
+++ b/src/main/java/hw9/Phone.java
@@ -0,0 +1,18 @@
+package hw9;
+
+public class Phone {
+    public String Brand;
+    public int Camera;
+    public int ScreenSize;
+    public int Storage;
+    public String Color;
+
+    public void printPhone() {
+        System.out.println("Device brand is: " + Brand);
+        System.out.println("Device color is: " + Color);
+        System.out.println("Device space is: " + Storage + " gb");
+        System.out.println("Device screen size is: " + ScreenSize + " inches");
+        System.out.println("Device camera is: " + Camera + " megapixels");
+    }
+
+}
diff --git a/src/main/java/hw9/Student.java b/src/main/java/hw9/Student.java
new file mode 100644
index 0000000..ed98685
--- /dev/null
+++ b/src/main/java/hw9/Student.java
@@ -0,0 +1,20 @@
+package hw9;
+
+public class Student {
+    public String Name;
+    public String DateOfBirth;
+    public int GraduateYear;
+    public Phone CurrentDevice;
+    public String Grade;
+
+
+    public void Introduction(){
+        System.out.println("Hey, I'm " + Name + ". My date of birth is: " + DateOfBirth +
+                " And, I'm using " + CurrentDevice + "\n");
+    }
+
+    public void Graduation(){
+        System.out.println("Hey, I'm " + Name + ". My current grade is: " + Grade + ", and my graduation year is: "
+        + GraduateYear);
+    }
+}