Implement tasks

src/main/java/core/basesyntax/Application.java

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+package core.basesyntax;
+
+public class Application {
+    public static void main(String[] args) {
+        Figure[] figures = new Figure[6];
+        int halfSize = figures.length / 2;
+        for (int i = 0; i < halfSize; i++) {
+            figures[i] = FigureSupplier.getRandomFigure();
+            figures[halfSize + i] = FigureSupplier.getDefaultFigure();
+        }
+        for (Figure figure : figures) {
+            figure.draw();
+        }
+    }
+}

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

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+package core.basesyntax;
+
+import java.util.Random;
+
+public class ColorSupplier {
+    public static String getRandomColor() {
+        StringBuilder sb = new StringBuilder("rgb(");
+        Random random = new Random();
+        int red = random.nextInt(256);
+        int green = random.nextInt(256);
+        int blue = random.nextInt(256);
+        sb.append(red)
+                .append(", ")
+                .append(green)
+                .append(", ")
+                .append(blue)
+                .append(")");
+        return sb.toString();
+    }
+}

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

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+package core.basesyntax;
+
+public interface Drawable {
+    void draw();
+}

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

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+package core.basesyntax;
+
+public abstract class Figure implements Drawable {
+    private final String color;
+
+    protected Figure(String color) {
+        this.color = color;
+    }
+
+    public String getColor() {
+        return color;
+    }
+
+    public abstract double getArea();
+}

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

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+package core.basesyntax;
+
+import core.basesyntax.models.Circle;
+import core.basesyntax.models.IsoscelesTrapezoid;
+import core.basesyntax.models.Rectangle;
+import core.basesyntax.models.RightTriangle;
+import core.basesyntax.models.Square;
+import java.util.Random;
+
+public class FigureSupplier {
+    public static Figure getRandomFigure() {
+        Random random = new Random();
+        double squareSide = random.nextDouble();
+        double width = random.nextDouble();
+        double height = random.nextDouble();
+        double firstLeg = random.nextDouble();
+        double secondLeg = random.nextDouble();
+        double radius = random.nextDouble();
+        double bottom = random.nextDouble();
+        double top = random.nextDouble();
+        double trapSide = random.nextDouble();
+        int randomFigureIndex = random.nextInt(Figures.values().length);
+        Figures figure = Figures.values()[randomFigureIndex];
+        Figure randomFigure = switch (figure) {
+            case SQUARE -> new Square(ColorSupplier.getRandomColor(), squareSide);
+            case RECTANGLE -> new Rectangle(ColorSupplier.getRandomColor(), width, height);
+            case RIGHT_TRIANGLE ->
+                    new RightTriangle(ColorSupplier.getRandomColor(), firstLeg, secondLeg);
+            case CIRCLE -> new Circle(ColorSupplier.getRandomColor(), radius);
+            case ISOSCELES_TRAPEZOID ->
+                    new IsoscelesTrapezoid(ColorSupplier.getRandomColor(), trapSide, bottom, top);
+        };
+        return randomFigure;
+    }
+
+    public static Figure getDefaultFigure() {
+        return new Circle("rgb(255, 255, 255)", 10.0);
+    }
+}

src/main/java/core/basesyntax/Figures.java

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+package core.basesyntax;
+
+public enum Figures {
+    SQUARE,
+    RECTANGLE,
+    RIGHT_TRIANGLE,
+    CIRCLE,
+    ISOSCELES_TRAPEZOID
+}

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

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+package core.basesyntax.models;
+
+import core.basesyntax.Figure;
+
+public class Circle extends Figure {
+    private final double radius;
+
+    public Circle(String color, double radius) {
+        super(color);
+        this.radius = radius;
+    }
+
+    @Override
+    public double getArea() {
+        return Math.PI * radius * radius;
+    }
+
+    @Override
+    public void draw() {
+        System.out.printf(
+                "Figure: circle, area: %.1f sq. units, radius: %.1f units, color: %s\n",
+                this.getArea(),
+                this.radius,
+                this.getColor()
+        );
+    }
+}

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

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+package core.basesyntax.models;
+
+import core.basesyntax.Figure;
+
+public class IsoscelesTrapezoid extends Figure {
+    private final double side;
+    private final double bottom;
+    private final double top;
+
+    public IsoscelesTrapezoid(String color, double side, double bottom, double top) {
+        super(color);
+        this.side = side;
+        this.bottom = bottom;
+        this.top = top;
+    }
+
+    @Override
+    public double getArea() {
+        return ((bottom + top) / 4) * Math.sqrt(4 * side * side - Math.pow((bottom - top), 2));
+    }
+
+    @Override
+    public void draw() {
+        System.out.printf(
+                "Figure: isosceles trapezoid, area: %.1f sq. units, side: %.1f units,"
+                + " bottom: %.1f units, top: %.1f units, color: %s\n",
+                this.getArea(),
+                this.side,
+                this.bottom,
+                this.top,
+                this.getColor()
+        );
+    }
+}

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

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+package core.basesyntax.models;
+
+import core.basesyntax.Figure;
+
+public class Rectangle extends Figure {
+    private final double width;
+    private final double height;
+
+    public Rectangle(String color, double width, double height) {
+        super(color);
+        this.width = width;
+        this.height = height;
+    }
+
+    @Override
+    public double getArea() {
+        return width * height;
+    }
+
+    @Override
+    public void draw() {
+        System.out.printf(
+                "Figure: rectangle, area: %.1f sq. units, width: %.1f units,"
+                + " height: %.1f units, color: %s\n",
+                this.getArea(),
+                this.width,
+                this.height,
+                this.getColor()
+        );
+    }
+}

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

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+package core.basesyntax.models;
+
+import core.basesyntax.Figure;
+
+public class RightTriangle extends Figure {
+    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 firstLeg * secondLeg / 2;
+    }
+
+    @Override
+    public void draw() {
+        System.out.printf(
+                "Figure: right triangle, area: %.1f sq. units, first leg: %.1f units,"
+                + " second leg: %.1f units, color: %s\n",
+                this.getArea(),
+                this.firstLeg,
+                this.secondLeg,
+                this.getColor()
+        );
+    }
+}

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

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+package core.basesyntax.models;
+
+import core.basesyntax.Figure;
+
+public class Square extends Figure {
+    private final double side;
+
+    public Square(String color, double side) {
+        super(color);
+        this.side = side;
+    }
+
+    @Override
+    public double getArea() {
+        return side * side;
+    }
+
+    @Override
+    public void draw() {
+        System.out.printf(
+                "Figure: square, area: %.1f sq. units, side: %.1f units, color: %s\n",
+                this.getArea(),
+                this.side,
+                this.getColor()
+        );
+    }
+}