package shapes.composite;

import shapes.visitor.Visitor;

public abstract class Shape {

	// Estimates the area. 
	// Core function
	public abstract double getArea ( ); 

	// Draws the shape
	// Core function
	public abstract void draw ( );

	// Prints info about the shape
	// Core function
	public abstract void print ( );

	//...

	public abstract void accept ( Visitor v ) ;

}