工厂方法模式

Posted 2020-07-03 仙人掌的刺

工厂方法模式与普通工厂模式相比，没有违背“开放-封闭”原则。

利用反射，可以避免修改客户端代码。

/**
 * Created by hero on 16-4-2.
 */
public interface BaseFactory {
    void method();
}
/**
 * Created by hero on 16-4-2.
 */
public class FactoryA implements BaseFactory {
    @Override
    public void method() {
        System.out.println("factory a");
    }
}
/**
 * Created by hero on 16-4-2.
 */
public class FactoryB implements BaseFactory {
    @Override
    public void method() {
        System.out.println("factory b");
    }
}
public class Main {

    public static void main(String[] args) {
        BaseFactory factory = new FactoryA();
        factory.method();
    }
}