工厂与接口

接口和工厂模式

interface Service{
	void method1();
	void method2();
}
interface ServiceFactory{
	Service getService();
}
class Implementation1 implements Service{
	Implementation1(){};
	public void method1() {
		System.out.println("Implementation1 method1");
	}
	public void method2() {
		System.out.println("Implementation1 method2");
	}
}
class ImplementationFactory implements ServiceFactory{
	public Service getService(){
		return new Implementation1();
	}
}
class Implementation2 implements Service{
	Implementation2(){}
	public void method1(){
		System.out.println("Implementation2 method1");
	}
	public void method2(){
		System.out.println("Implementation2 method2");
	}
}
class Implementation2Factory implements ServiceFactory{
	public Service getService(){
		return new Implementation2();
	}
}
public class Factories{
	public static void serviceConsume(ServiceFactory fact){
		Service s = fact.getService();
		s.method1();
		s.method2();
	}
	public static void main(String[] args){
		serviceConsume(new ImplementationFactory());
		serviceConsume(new Implementation2Factory());
	}
}