added package diagrams

src/lab1_decorator/ex2/Circle.java

@@ -9,6 +9,6 @@ public class Circle extends Shape {
 
     @Override
     public void draw() {
-        System.out.println("Drawing a circle");
+        System.out.printf("Drawing a circle of radius %fpx%n", radius);
     }
 }

src/lab1_decorator/ex2/Rectangle.java

@@ -11,6 +11,6 @@ public class Rectangle extends Shape {
 
     @Override
     public void draw() {
-        System.out.println("Drawing a rectangle");
+        System.out.printf("Drawing a rectangle of width %fpx and height %fpx%n", width, height);
     }
 }

src/lab1_decorator/ex2/Square.java

@@ -9,6 +9,6 @@ public class Square extends Shape {
 
     @Override
     public void draw() {
-        System.out.println("Drawing a square");
+        System.out.printf("Drawing a square of size %fpx%n", size);
     }
 }