Jv oop advanced

src/main/java/core/basesyntax/Main.java

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+package core.basesyntax;
+
+import core.basesyntax.model.Figure;
+import core.basesyntax.service.FigureSupplier;
+
+public class Main {
+    public static void main(String[] args) {
+        final int AMOUNT_FIGURES = 6;
+        final int HALF_FIGURES_COUNT = 3;
+
+        Figure[] figures = new Figure[AMOUNT_FIGURES];
+        FigureSupplier figureSupplier = new FigureSupplier();
+
+        for (int i = 0; i < HALF_FIGURES_COUNT; i++) {
+            figures[i] = figureSupplier.getRandomFigure();
+        }
+
+        for (int i = 3; i < AMOUNT_FIGURES; i++) {
+            figures[i] = figureSupplier.getDefaultFigure();
+        }
+
+        for (Figure figure : figures) {
+            figure.draw();
+        }
+    }
+}

src/main/java/core/basesyntax/model/Circle.java

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+package core.basesyntax.model;
+
+import core.basesyntax.service.AreaCalculator;
+
+public class Circle extends Figure implements AreaCalculator {
+    private final double radius;
+
+    public Circle(String color, double radius) {
+        super(color);
+        this.radius = radius;
+    }
+
+    @Override
+    public double getArea() {
+        return (Math.PI * radius * radius);
+    }
+
+    public double getRadius() {
+        return radius;
+    }
+
+    @Override
+    public void draw() {
+        System.out.println("Figure: " + this.getClass().getSimpleName().toLowerCase()
+                + ", area: " + getArea() + " sq. units, "
+                + "radius " + getRadius() + " units, "
+                + "color: " + getColor().toLowerCase());
+    }
+}

src/main/java/core/basesyntax/model/Color.java

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+package core.basesyntax.model;
+
+public enum Color {
+    Red,
+    Green,
+    Blue,
+    Yellow,
+    Orange,
+    Purple,
+    Black,
+    White,
+    Pink
+}

src/main/java/core/basesyntax/model/Figure.java

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+package core.basesyntax.model;
+
+public abstract class Figure {
+    String color;
+
+    public Figure(String color) {
+        this.color = color;
+    }
+
+    public String getColor() {
+        return color;
+    }
+
+    public abstract void draw();
+}

src/main/java/core/basesyntax/model/IsoscelesTrapezoid.java

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+package core.basesyntax.model;
+
+import core.basesyntax.service.AreaCalculator;
+
+public class IsoscelesTrapezoid extends Figure implements AreaCalculator {
+
+    private final double longerBase;
+    private final double shorterBase;
+    private final double height;
+
+    public IsoscelesTrapezoid(String color, double longerBase, double shorterBase, double height) {
+        super(color);
+        this.longerBase = longerBase;
+        this.shorterBase = shorterBase;
+        this.height = height;
+    }
+
+    @Override
+    public double getArea() {
+        return (longerBase + shorterBase) * height / 2;
+    }
+
+
+    @Override
+    public void draw() {
+        System.out.println("Figure: " + this.getClass().getSimpleName().toLowerCase()
+                + ", area: " + getArea() + " sq. units, "
+                + "longerbase " + getLongerBase() + " units, "
+                + "shoterbase " + getShorterBase() + " units, "
+                + "height " + getHeight() + " units, "
+                + "color: " + getColor().toLowerCase());
+    }
+
+    public double getLongerBase() {
+        return longerBase;
+    }
+
+    public double getShorterBase() {
+        return shorterBase;
+    }
+
+    public double getHeight() {
+        return height;
+    }
+}

src/main/java/core/basesyntax/model/Rectangle.java

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+package core.basesyntax.model;
+
+import core.basesyntax.service.AreaCalculator;
+
+public class Rectangle extends Figure implements AreaCalculator {
+    private final double length;
+    private final double width;
+
+    public Rectangle(String color, double length, double width) {
+        super(color);
+        this.length = length;
+        this.width = width;
+    }
+
+    @Override
+    public double getArea() {
+        return getLength() * getWidth();
+    }
+
+    @Override
+    public void draw() {
+        System.out.println("Figure: " + this.getClass().getSimpleName().toLowerCase()
+                + ", area: " + getArea() + " sq. units, "
+                + "length " + getLength() + " units, "
+                + "width " + getWidth() + " units, "
+                + "color: " + getColor().toLowerCase());
+    }
+
+    public double getLength() {
+        return length;
+    }
+
+    public double getWidth() {
+        return width;
+    }
+}

src/main/java/core/basesyntax/model/RightTriangle.java

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+package core.basesyntax.model;
+
+import core.basesyntax.service.AreaCalculator;
+
+public class RightTriangle extends Figure implements AreaCalculator {
+
+    private final double firstLeg;
+    private final double secondLeg;
+
+    public RightTriangle(String color, double firstLeg, double secondLeg) {
+        super(color);
+        this.firstLeg = firstLeg;
+        this.secondLeg = secondLeg;
+    }
+
+    @Override
+    public double getArea() {
+        return getFirstLeg() * getSecondLeg() / 2;
+    }
+
+    @Override
+    public void draw() {
+        System.out.println("Figure: " + this.getClass().getSimpleName().toLowerCase()
+                + ", area: " + getArea() + " sq. units, "
+                + "firstLeg " + getFirstLeg() + " units, "
+                + "secondleg " + getSecondLeg() + " units, "
+                + "color: " + getColor().toLowerCase());
+    }
+
+    public double getFirstLeg() {
+        return firstLeg;
+    }
+
+    public double getSecondLeg() {
+        return secondLeg;
+    }
+}

src/main/java/core/basesyntax/model/Square.java

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+package core.basesyntax.model;
+
+import core.basesyntax.service.AreaCalculator;
+
+public class Square extends Figure implements AreaCalculator {
+
+    private final double side;
+
+    public Square(String color, double side) {
+        super(color);
+        this.side = side;
+    }
+
+    @Override
+    public void draw() {
+        System.out.println("Figure: " + this.getClass().getSimpleName().toLowerCase()
+                + ", area: " + getArea() + " sq. units, "
+                + "side " + getSide() + " units, "
+                + "color: " + getColor().toLowerCase());
+    }
+
+    @Override
+    public double getArea() {
+        return getSide() * getSide();
+    }
+
+    public double getSide() {
+        return side;
+    }
+}

src/main/java/core/basesyntax/service/AreaCalculator.java

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+package core.basesyntax.service;
+
+public interface AreaCalculator {
+    double getArea();
+}

src/main/java/core/basesyntax/service/ColorSupplier.java

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+package core.basesyntax.service;
+
+import core.basesyntax.model.Color;
+
+import java.util.Random;
+
+public class ColorSupplier {
+
+    public String getRandomColor() {
+        Random random = new Random();
+        Color[] colors = Color.values();
+        Color color = colors[random.nextInt(colors.length)];
+        return color.name();
+    }
+}

src/main/java/core/basesyntax/service/FigureSupplier.java

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+package core.basesyntax.service;
+
+import core.basesyntax.model.*;
+
+import java.util.Random;
+
+public class FigureSupplier {
+
+    public core.basesyntax.model.Figure getRandomFigure() {
+        ColorSupplier colorSupplier = new ColorSupplier();
+        Random random = new Random();
+
+        Figure circle = new Circle(colorSupplier.getRandomColor(), random.nextDouble());
+        Figure rectangle = new Rectangle(colorSupplier.getRandomColor(), random.nextDouble(), random.nextDouble());
+        Figure isoscelesTrapezoid = new IsoscelesTrapezoid(colorSupplier.getRandomColor(), random.nextDouble(), random.nextDouble(), 4);
+        Figure rightTriangle = new RightTriangle(colorSupplier.getRandomColor(), random.nextDouble(), random.nextDouble());
+        Figure square = new Square(colorSupplier.getRandomColor(), random.nextDouble());
+
+        Figure[] figures = {
+                circle, rectangle,
+                isoscelesTrapezoid,
+                rightTriangle, square};
+
+        return figures[random.nextInt(figures.length)];
+    }
+
+    public core.basesyntax.model.Figure getDefaultFigure() {
+        return new Circle(Color.White.name(), 2);
+    }
+}