implemented all the methods from the task

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

@@ -0,0 +1,5 @@
+package core.basesyntax;
+
+public interface AreaCalculator {
+    double getArea();
+}

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

@@ -0,0 +1,24 @@
+package core.basesyntax;
+
+public class Circle extends Figure {
+    private int radius;
+
+    public Circle(int radius, Color color) {
+        super(color);
+        this.radius = radius;
+    }
+
+    @Override
+    public double getArea() {
+        return Math.PI * radius * radius;
+    }
+
+    @Override
+    public void draw() {
+        System.out.println("Figure: circle, "
+                + "area: " + getArea() + " sq. units, "
+                + "radius: " + radius + " units, "
+                + "color: " + this.getColor()
+        );
+    }
+}

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

@@ -0,0 +1,12 @@
+package core.basesyntax;
+
+public enum Color {
+    RED,
+    ORANGE,
+    YELLOW,
+    GREEN,
+    BLUE,
+    INDIGO,
+    VIOLET,
+    WHITE,
+}

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

@@ -0,0 +1,12 @@
+package core.basesyntax;
+
+import java.util.Random;
+
+public class ColorSupplier {
+    private Random random = new Random();
+    private Color[] colors = Color.values();
+
+    public Color getRandomColor() {
+        return colors[random.nextInt(colors.length)];
+    }
+}

src/main/java/core/basesyntax/Drawable.java

@@ -0,0 +1,5 @@
+package core.basesyntax;
+
+public interface Drawable {
+    void draw();
+}

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

@@ -0,0 +1,17 @@
+package core.basesyntax;
+
+public abstract class Figure implements Drawable, AreaCalculator {
+    private Color color;
+
+    public Figure(Color color) {
+        this.color = color;
+    }
+
+    public Color getColor() {
+        return color;
+    }
+
+    public void setColor(Color color) {
+        this.color = color;
+    }
+}

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

@@ -0,0 +1,43 @@
+package core.basesyntax;
+
+import java.util.Random;
+
+public class FigureSupplier {
+    private static final int MAX_FIGURES_TYPES = 5;
+    private static final int SIZE_LIMIT = 5;
+    private static final int DEFAULT_CIRCLE_RADIUS = 10;
+
+    private ColorSupplier colorSupplier = new ColorSupplier();
+    private Random random = new Random();
+
+    private int getRandomSize() {
+        return random.nextInt(SIZE_LIMIT) + 1;
+    }
+
+    public Figure getRandomFigure() {
+        Color randomColor = colorSupplier.getRandomColor();
+        int sideA = getRandomSize();
+        switch (random.nextInt(MAX_FIGURES_TYPES) + 1) {
+            case 1:
+                return new Circle(sideA, randomColor);
+            case 2:
+                return new Square(sideA, randomColor);
+            case 3:
+                int rectangleSideB = getRandomSize();
+                return new Rectangle(sideA, rectangleSideB, randomColor);
+            case 4:
+                int triangleSideB = getRandomSize();
+                return new RightTriangle(sideA, triangleSideB, randomColor);
+            case 5:
+                int trapezoidSideB = getRandomSize();
+                int trapezoidHeight = getRandomSize();
+                return new IsoscelesTrapezoid(sideA, trapezoidSideB, trapezoidHeight, randomColor);
+            default:
+                return getDefaultFigure();
+        }
+    }
+
+    public Figure getDefaultFigure() {
+        return new Circle(DEFAULT_CIRCLE_RADIUS, Color.WHITE);
+    }
+}

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

@@ -0,0 +1,29 @@
+package core.basesyntax;
+
+public class IsoscelesTrapezoid extends Figure {
+    private int sideA;
+    private int sideB;
+    private int height;
+
+    public IsoscelesTrapezoid(int sideA, int sideB, int height, Color color) {
+        super(color);
+        this.sideA = sideA;
+        this.sideB = sideB;
+        this.height = height;
+    }
+
+    @Override
+    public double getArea() {
+        return (double) ((sideA + sideB) * height) / 2;
+    }
+
+    @Override
+    public void draw() {
+        System.out.println("Figure: isosceles trapezoid, "
+                + "area: " + getArea() + " sq. units, "
+                + "first side: " + sideA + " units, "
+                + "second side: " + sideB + " units, "
+                + "color: " + this.getColor()
+        );
+    }
+}

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

@@ -0,0 +1,22 @@
+package core.basesyntax;
+
+public class Main {
+    private static final int MAIN_LOOP_COUNT = 10;
+
+    public static void main(String[] args) {
+        Drawable[] figures = new Drawable[MAIN_LOOP_COUNT];
+        FigureSupplier figureSupplier = new FigureSupplier();
+
+        for (int i = 0; i < figures.length; i++) {
+            if (i < figures.length / 2) {
+                figures[i] = figureSupplier.getDefaultFigure();
+            } else {
+                figures[i] = figureSupplier.getRandomFigure();
+            }
+        }
+
+        for (Drawable figure : figures) {
+            figure.draw();
+        }
+    }
+}

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

@@ -0,0 +1,27 @@
+package core.basesyntax;
+
+public class Rectangle extends Figure {
+    private int sideA;
+    private int sideB;
+
+    public Rectangle(int sideA, int sideB, Color color) {
+        super(color);
+        this.sideA = sideA;
+        this.sideB = sideB;
+    }
+
+    @Override
+    public double getArea() {
+        return sideA * sideB;
+    }
+
+    @Override
+    public void draw() {
+        System.out.println("Figure: rectangle, "
+                + "area: " + getArea() + " sq. units, "
+                + "first side: " + sideA + " units, "
+                + "second side: " + sideB + " units, "
+                + "color: " + this.getColor()
+        );
+    }
+}

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

@@ -0,0 +1,27 @@
+package core.basesyntax;
+
+public class RightTriangle extends Figure {
+    private int firstLeg;
+    private int secondLeg;
+
+    public RightTriangle(int firstLeg, int secondLeg, Color color) {
+        super(color);
+        this.firstLeg = firstLeg;
+        this.secondLeg = secondLeg;
+    }
+
+    @Override
+    public double getArea() {
+        return (double) (firstLeg * secondLeg / 2);
+    }
+
+    @Override
+    public void draw() {
+        System.out.println("Figure: right triangle, "
+                + "area: " + getArea() + " sq. units, "
+                + "first leg: " + firstLeg + " units, "
+                + "second leg: " + secondLeg + " units, "
+                + "color: " + this.getColor()
+        );
+    }
+}

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

@@ -0,0 +1,24 @@
+package core.basesyntax;
+
+public class Square extends Figure {
+    private int sideA;
+
+    public Square(int sideA, Color color) {
+        super(color);
+        this.sideA = sideA;
+    }
+
+    @Override
+    public double getArea() {
+        return sideA * sideA;
+    }
+
+    @Override
+    public void draw() {
+        System.out.println("Figure: square, "
+                + "area: " + getArea() + " sq. units, "
+                + "side: " + sideA + " units, "
+                + "color: " + this.getColor()
+        );
+    }
+}