added random color, random area and so on

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

@@ -1,6 +1,6 @@
 package core.basesyntax;
 
-public class Circle extends Figure {
+public class Circle extends Object {
     private double radius;
 
     public Circle(String color, double radius) {

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

@@ -1,17 +1,6 @@
 package core.basesyntax;
 
-public abstract class Figure {
-    private String color;
-
-    public Figure(String color) {
-        this.color = color;
-    }
-
-    public String getColor() {
-        return color;
-    }
-
-    public abstract double getArea();
-
-    public abstract void draw();
+public interface Figure {
+    double getArea();
+    void draw();
 }

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

@@ -1,6 +1,6 @@
 package core.basesyntax;
 
-public class IsoscelesTrapezoid extends Figure {
+public class IsoscelesTrapezoid extends Object {
     private String color;
     private double upperBase;
     private double lowerBase;

src/main/java/core/basesyntax/Object.java

@@ -0,0 +1,12 @@
+package core.basesyntax;
+
+public abstract class Object implements Figure{
+    private String color;
+
+    public Object(String color){
+        this.color = color;
+    }
+    public String getColor() {
+        return color;
+    }
+}

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

@@ -1,6 +1,6 @@
 package core.basesyntax;
 
-public class Rectangle extends Figure {
+public class Rectangle extends Object {
     private double length;
     private double width;
 
@@ -18,7 +18,7 @@ public double getArea() {
     @Override
     public void draw() {
         System.out.println("Figure: rectangle, area: " + getArea()
-                + " sq. units, length: " + length
-                + " units, width: " + width + " units, color: " + getColor());
+                + " sq. units, length: " + length + " units, width: "
+                + width + " units, color: " + getColor());
     }
 }

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

@@ -1,6 +1,6 @@
 package core.basesyntax;
 
-public class RightTriangle extends Figure {
+public class RightTriangle extends Object {
     private String color;
     private double base;
     private double height;

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

@@ -1,6 +1,6 @@
 package core.basesyntax;
 
-public class Square extends Figure {
+public class Square extends Object {
     private String color;
     private double sideLength;