package com.company;

//abstract factory

class ShapeFactory{ // Abstract factory
    static ConcreteShapeFactory getFactory(int id){
        switch (id){
            case 1: return new TriangleShapeFactory();
            case 2: return new RectangleShapeFactory();
            default: return null;
        }
    }
}

abstract class ConcreteShapeFactory{
    abstract Shape getShape();
}

class TriangleShapeFactory extends ConcreteShapeFactory{
    Triangle getShape(){
        return new Triangle();
    }
}

class RectangleShapeFactory extends ConcreteShapeFactory{
    Rectangle getShape(){
        return new Rectangle();
    }
}

abstract class Shape{
    abstract void print();
}

class Triangle extends Shape{
    public void print(){
        System.out.println("Triangle");
    }
}

class Rectangle extends Shape{
    public void print(){
        System.out.println("Rectangle");
    }
}

public class Main {

    public static void main(String[] args) {
        ConcreteShapeFactory c = ShapeFactory.getFactory(1);
        Shape s = c.getShape();
        s.print();
    }
}