ok

Shapes.java

+abstract public class Shape {
+
+    protected int size;
+  
+    abstract public void draw();
+    abstract public float area();
+    abstract public float circumference();
+  
+    public int getSize() { return size; }
+    public void setSize(int size) { this.size = size; }
+  
+    public Shape(){
+      this.size = 3;
+    }
+  
+    public Shape(int size){
+      this.size = size;
+    }
+  
+  }
\ No newline at end of file