静态工厂和实例工厂

一、静态工厂

通过工厂类的静态方法来获取实例对象

public class FruitFactory {
    public static Fruit  getInstance(){
        return new Fruit();
    }

    public static void main(String[] args) {
        FruitFactory.getInstance();
    }
}

二、实例工厂

先创建工厂类的对象,然后通过该对象去调用生产实例对象的方法

public class FruitFactory {
    public Fruit getInstances(){
        return new Fruit();
    }

    public static void main(String[] args) {
        FruitFactory fruitFactory = new FruitFactory();
        fruitFactory.getInstances();
    }
}