范例:工厂模式
interface Fruit {
public void eat();
}
class Apple implements Fruit {
@Override
public void eat() {
System.out.println("吃苹果.....");
}
}
class Factory {
public static Fruit getInstance() {
return new Apple();
}
}
public class Test {
public static void main(String[] args) {
Fruit f = Factory.getInstance();
f.eat();
}
}
