package com.java.designpattern.simplefactory;

import java.util.HashMap;

//演示简单工厂

public class SimpleFactory {

public static void main(String args[]) throws Exception {

Factory factory = new Factory();

factory.produce("A").run();

factory.produce("B").run();

factory.produce("C").run();

}

}

// 抽象产品

interface IProduct {

void run();

}

// 具体产品 A

class ProductA implements IProduct {

@Override

public void run() {

System.out.println("产品 A");

}

}

// 具体产品 B

class ProductB implements IProduct {

@Override

public void run() {

System.out.println("产品 B");

}

}

// 具体产品 C

class ProductC implements IProduct {

public void run() {

System.out.println("产品 C");

}

}

//工厂

class Factory {

/*

IProduct produce(String product) throws Exception{

if(product.equals("A"))

return new ProductA();

else if(product.equals("B"))

return new ProductB();

throw new Exception("No Such Class");

}

*/

IProduct produce(String product) throws Exception {

switch (product) {

case "A":

return new ProductA();

case "B":

return new ProductB();

case "C":

return new ProductC();

default:

return null;

}

}

}