Solved the problem according to the principles of oop

src/main/java/core/basesyntax/AreaCalculable.java

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

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

@@ -0,0 +1,21 @@
+package core.basesyntax;
+
+public class Circle extends Figure {
+    private double radius;
+
+    public Circle(String color, double radius) {
+        super(color);
+        this.radius = radius;
+    }
+
+    @Override
+    public double calculateArea() {
+        return Math.PI * radius * radius;
+    }
+
+    @Override
+    public void draw() {
+        System.out.println("Figure: circle, area: " + calculateArea() + " sq. units, radius: "
+                + radius + " units, color: " + color);
+    }
+}

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

@@ -0,0 +1,12 @@
+package core.basesyntax;
+
+import java.util.Random;
+
+public class ColorSupplier {
+    private static final String[] COLORS = {"red", "blue", "green", "yellow", "purple", "black"};
+
+    public String getRandomColor() {
+        Random random = new Random();
+        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 +1,9 @@
+package core.basesyntax;
+
+public abstract class Figure implements AreaCalculable, Drawable {
+    protected String color;
+
+    public Figure(String color) {
+        this.color = color;
+    }
+}

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

@@ -0,0 +1,34 @@
+package core.basesyntax;
+
+import java.util.Random;
+
+public class FigureSupplier {
+    private final ColorSupplier colorSupplier = new ColorSupplier();
+    private final Random random = new Random();
+
+    public Figure getRandomFigure() {
+        int figureType = random.nextInt(5);
+
+        switch (figureType) {
+            case 0:
+                return new Square(colorSupplier.getRandomColor(), random.nextDouble() * 10 + 1);
+            case 1:
+                return new Rectangle(colorSupplier.getRandomColor(), random.nextDouble() * 10 + 1,
+                        random.nextDouble() * 10 + 1);
+            case 2:
+                return new RightTriangle(colorSupplier.getRandomColor(), random.nextDouble() * 10
+                        + 1, random.nextDouble() * 10 + 1);
+            case 3:
+                return new Circle(colorSupplier.getRandomColor(), random.nextDouble() * 10 + 1);
+            case 4:
+                return new IsoscelesTrapezoid(colorSupplier.getRandomColor(), random.nextDouble()
+                        * 10 + 1, random.nextDouble() * 10 + 1, random.nextDouble() * 10 + 1);
+            default:
+                return getDefaultFigure();
+        }
+    }
+
+    public Figure getDefaultFigure() {
+        return new Circle("white", 10);
+    }
+}

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

@@ -0,0 +1,27 @@
+package core.basesyntax;
+
+public class IsoscelesTrapezoid extends Figure {
+    private double base1;
+    private double base2;
+    private double height;
+
+    public IsoscelesTrapezoid(String color, double base1, double base2, double height) {
+        super(color);
+        this.base1 = base1;
+        this.base2 = base2;
+        this.height = height;
+    }
+
+    @Override
+    public double calculateArea() {
+        return 0.5 * (base1 + base2) * height;
+    }
+
+    @Override
+    public void draw() {
+        System.out.println("Shape: isosceles trapezoid, area: " + calculateArea()
+                + " square units, first base: " + base1 + " units, second base: " + base2
+                + " units, height: " + height + " units, color: " + color);
+
+    }
+}

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

@@ -0,0 +1,20 @@
+package core.basesyntax;
+
+/**
+ * Feel free to remove this class and create your own.
+ */
+public class Main {
+    public static void main(String[] args) {
+        FigureSupplier figureSupplier = new FigureSupplier();
+        Figure[] figures = new Figure[6];
+
+        for (int i = 0; i < figures.length / 2; i++) {
+        }
+        for (int i = figures.length / 2; i < figures.length; i++) {
+            figures[i] = figureSupplier.getDefaultFigure();
+        }
+        for (Figure figure : figures) {
+            figure.draw();
+        }
+    }
+}

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

@@ -0,0 +1,23 @@
+package core.basesyntax;
+
+public class Rectangle extends Figure {
+    private double width;
+    private double height;
+
+    public Rectangle(String color, double width, double height) {
+        super(color);
+        this.width = width;
+        this.height = height;
+    }
+
+    @Override
+    public double calculateArea() {
+        return width * height;
+    }
+
+    @Override
+    public void draw() {
+        System.out.println("Shape: rectangle, area: " + calculateArea() + "square units width: "
+                + width + "height units: " + height + "color units: " + color);
+    }
+}

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

@@ -0,0 +1,24 @@
+package core.basesyntax;
+
+public class RightTriangle extends Figure {
+    private double firstLeg;
+    private double secondLeg;
+
+    public RightTriangle(String color,double firstLeg, double secondLeg) {
+        super(color);
+        this.firstLeg = firstLeg;
+        this.secondLeg = secondLeg;
+    }
+
+    @Override
+    public double calculateArea() {
+        return 0.5 * firstLeg * secondLeg;
+    }
+
+    @Override
+    public void draw() {
+        System.out.println("Shape: right triangle, area: " + calculateArea()
+                + " square units, first side: " + firstLeg + " units, second side: "
+                + secondLeg + " units, color: " + color);
+    }
+}

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

@@ -0,0 +1,21 @@
+package core.basesyntax;
+
+public class Square extends Figure {
+    private double side;
+
+    public Square(String color,double side) {
+        super(color);
+        this.side = side;
+    }
+
+    @Override
+    public double calculateArea() {
+        return side * side;
+    }
+
+    @Override
+    public void draw() {
+        System.out.println("Figure: square, area: " + calculateArea() + "square units, side: "
+                + side + " color, units" + color);
+    }
+}