工厂方法

package test2;

import java.lang.reflect.Field;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

interface  Product
{
//private String name;

public  void Method();

}

class ProductA implements Product
{
public  void Method()
{
System.out.println("AAAA");
}

}
class ProductB implements Product
{
public void Method()
{
System.out.println("BBBB");
}

}

interface Factory
{
public Product CreateProduct();

}

class FactoryForA implements Factory
{

Product  product;
public  Product CreateProduct() {

product=new ProductA();
return product;

}

}
class FactoryForB implements Factory
{
Product product;
public Product CreateProduct() {

product=new ProductB();
return product;
}
}

public class my2 {

public static void main(String[] args){

Product product;
Factory factorya=new FactoryForA();
product=factorya.CreateProduct();
product.Method();
Factory factoryb=new FactoryForB();
product=factoryb.CreateProduct();
product.Method();

}
}