lesson14 task1

src/com/walking/lesson14_polymorphism/task1/Main.java

@@ -1,16 +1,50 @@
 package com.walking.lesson14_polymorphism.task1;
 
+import java.util.Scanner;
+
 /**
- * Реализуйте класс «Правильная фигура».
- * Для него создайте классы-наследники «Треугольник» и «Квадрат».
+ * ���������� ����� ����������� ������.
+ * ��� ���� �������� ������-���������� ������������ � ��������.
  * <p>
- * Пользователь должен иметь возможность ввести длину стороны и выбрать тип фигуры.
- * Программа должна нарисовать в консоли выбранную пользователем фигуру,
- * используя символы '-', '|', '/', '\'.
+ *  ������������ ������ ����� ����������� ������ ����� ������� � ������� ��� ������.
+ *  ��������� ������ ���������� � ������� ��������� ������������� ������,
+ *  ��������� ������� '-', '|', '/', '\'.
  * <p>
- * Обратите внимание, символ '\' в Java необходимо экранировать: '\\'.
+ * �������� ��������, ������ '\' � Java ���������� ������������: '\\'.
  */
-public class Main {
-    public static void main(String[] args) {
+    import java.util.Scanner;
+
+    public class Main {
+
+        public static void main(String[] args) {
+            Scanner in = new Scanner(System.in);
+            System.out.print("������� ��� ������: ");
+            String figureType = in.nextLine();
+            System.out.print("������� ����� �������: ");
+            int length = in.nextInt();
+
+            if (length < 1) {
+                System.out.println("������������ ����");
+                return;
+            }
+
+            RightFigure figure = new RightFigure(length);
+            createShape(figure, figureType);
+
+        }
+
+        private static void createShape(RightFigure figure, String figureType) {
+            switch (figureType.toLowerCase()) {
+                case Triangle.NAME:
+                    figure = new Triangle(figure.length);
+                    figure.getTheFigure();
+                    break;
+                case Square.NAME:
+                    figure = new Square(figure.length);
+                    figure.getTheFigure();
+                    break;
+                default:
+                    figure.getTheFigure();
+            }
+        }
     }
-}

src/com/walking/lesson14_polymorphism/task1/RightFigure.java

@@ -0,0 +1,15 @@
+package com.walking.lesson14_polymorphism.task1;
+
+public class RightFigure {
+    int length;
+
+    public RightFigure(int length) {
+        this.length = length;
+    }
+
+    protected void getTheFigure() {
+        System.out.println("Íåèçâåñòíàÿ ôèãóðà");
+    }
+
+
+}

src/com/walking/lesson14_polymorphism/task1/Square.java

@@ -0,0 +1,30 @@
+package com.walking.lesson14_polymorphism.task1;
+
+public class Square extends RightFigure {
+    public static final String NAME = "êâàäðàò";
+
+    private final String HORIZONTAL = "-";
+    private final String VERTICAL = "|";
+    private final String SPACE = " ";
+
+    public Square(int length) {
+        super(length);
+    }
+
+    @Override
+    public void getTheFigure() {
+        getHorizontalSide();
+        getVerticalSide();
+        getHorizontalSide();
+    }
+
+    private void getHorizontalSide() {
+        System.out.println(SPACE + HORIZONTAL.repeat(length - 2) + SPACE);
+    }
+
+    private void getVerticalSide() {
+        for(int i = 0; i < length - 2; i++) {
+            System.out.println(VERTICAL + SPACE.repeat(length - 2) + VERTICAL);
+        }
+    }
+}

src/com/walking/lesson14_polymorphism/task1/Triangle.java

@@ -0,0 +1,41 @@
+package com.walking.lesson14_polymorphism.task1;
+
+public class Triangle extends RightFigure {
+    public static final String NAME = "òðåóãîëüíèê";
+
+    private final String RIGHT_SIDE = "\\";
+    private final String LEFT_SIDE = "/";
+    private final String BOTTOM_SIDE = "_";
+    private final String SPACE = " ";
+
+    public Triangle(int length) {
+        super(length);
+    }
+
+    @Override
+    public void getTheFigure() {
+        getTriangle();
+        getBottomSide();
+    }
+
+    private void getBottomSide() {
+        System.out.println(LEFT_SIDE + BOTTOM_SIDE.repeat(length) + RIGHT_SIDE);
+    }
+
+    private void getTriangle() {
+        int k = length / 2;
+        int j;
+        if (length % 2 == 0) {
+            j = 0;
+        } else {
+            j = 1;
+        }
+
+        for (int i = 0; i < length / 2; i++) {
+            System.out.println(SPACE.repeat(k) + LEFT_SIDE + SPACE.repeat(j) + RIGHT_SIDE);
+            k--;
+            j += 2;
+        }
+    }
+
+}

src/com/walking/lesson16_abstract_class_interface/task1_interface/Main.java

@@ -1,12 +1,13 @@
 package com.walking.lesson16_abstract_class_interface.task1_interface;
 
-
 /**
  * Реализуйте задачу
  * <a href="https://github.com/KFalcon2022/practical-tasks/tree/master/src/com/walking/lesson14_polymorphism/task1">...</a>
  * используя интерфейс.
  */
 public class Main {
     public static void main(String[] args) {
+
     }
+
 }

src/com/walking/lesson16_abstract_class_interface/task2/Goodbye.java

@@ -0,0 +1,10 @@
+package com.walking.lesson16_abstract_class_interface.task2;
+
+public class Goodbye implements Printer {
+    final static String MASSAGE = "Bye";
+    final static String RESPOND = "Goodbye";
+
+    public static void print() {
+        System.out.println(RESPOND);
+    }
+}

src/com/walking/lesson16_abstract_class_interface/task2/Hello.java

@@ -0,0 +1,10 @@
+package com.walking.lesson16_abstract_class_interface.task2;
+
+public class Hello implements Printer {
+    final static String MASSAGE = "Hi";
+    final static String RESPOND = "Hello";
+
+    public static void print() {
+        System.out.println(RESPOND);
+    }
+}

src/com/walking/lesson16_abstract_class_interface/task2/How.java

@@ -0,0 +1,10 @@
+package com.walking.lesson16_abstract_class_interface.task2;
+
+public class How implements Printer {
+    final static String MASSAGE = "How are you";
+    final static String RESPOND = "How are you doing";
+
+    public static void print() {
+        System.out.println(RESPOND);
+    }
+}

src/com/walking/lesson16_abstract_class_interface/task2/Main.java

@@ -1,11 +1,30 @@
 package com.walking.lesson16_abstract_class_interface.task2;
 
+import java.util.Scanner;
+
 /**
  * Реализуйте задачу
  * <a href="https://github.com/KFalcon2022/practical-tasks/blob/master/src/com/walking/lesson3/Task2SwitchCase.java">...</a>
  * с использованием интерфейсов. Каждая реализация должна возвращать свое сообщение.
  */
 public class Main {
     public static void main(String[] args) {
+        Scanner in = new Scanner(System.in);
+        System.out.println("Enter massage: ");
+        String massage = in.nextLine();
+
+        switch (massage) {
+            case Hello.MASSAGE:
+                Hello.print();
+                break;
+            case Goodbye.MASSAGE:
+                Goodbye.print();
+                break;
+            case How.MASSAGE:
+                How.print();
+                break;
+            default:
+                Printer.print();
+        }
     }
 }

src/com/walking/lesson16_abstract_class_interface/task2/Printer.java

@@ -0,0 +1,8 @@
+package com.walking.lesson16_abstract_class_interface.task2;
+
+public interface Printer {
+
+    static void print() {
+        System.out.println("Unknown massage");
+    }
+}

src/com/walking/lesson16_abstract_class_interface/task3/Animal.java

@@ -0,0 +1,10 @@
+package com.walking.lesson16_abstract_class_interface.task3;
+
+public abstract class Animal {
+
+    public Animal () {
+
+    }
+
+    abstract void sound();
+}

src/com/walking/lesson16_abstract_class_interface/task3/Cat.java

@@ -0,0 +1,14 @@
+package com.walking.lesson16_abstract_class_interface.task3;
+
+public class Cat extends Animal {
+    private final String SOUND = "meow";
+
+    public Cat() {
+        super();
+    }
+
+    public void sound() {
+        System.out.println(SOUND);
+    }
+
+}

src/com/walking/lesson16_abstract_class_interface/task3/Cow.java

@@ -0,0 +1,14 @@
+package com.walking.lesson16_abstract_class_interface.task3;
+
+public class Cow extends Animal {
+    private final String SOUND = "moo";
+
+    public Cow() {
+        super();
+    }
+
+    public void sound() {
+        System.out.println(SOUND);
+    }
+
+}

src/com/walking/lesson16_abstract_class_interface/task3/Dog.java

@@ -0,0 +1,14 @@
+package com.walking.lesson16_abstract_class_interface.task3;
+
+public class Dog extends Animal {
+    private final String SOUND = "woof";
+
+    public Dog() {
+        super();
+    }
+
+    public void sound() {
+        System.out.println(SOUND);
+    }
+
+}

src/com/walking/lesson16_abstract_class_interface/task3/Main.java

@@ -10,5 +10,10 @@
  */
 public class Main {
     public static void main(String[] args) {
+        Animal[] animals = new Animal[] {new Cow(), new Dog(), new Cat()};
+
+        for (Animal animal : animals) {
+            animal.sound();
+        }
     }
 }