如何创建类对象的列表，所有这些对象都实现了一个特定的接口?

Let's say I have a set of classes as follows:

假设我有一组类:

there is an interface Interface1, and there are two classes Class1 and Class2, both which implement Interface1.

有一个接口Interface1，并且有两个类Class1和Class2，它们都实现了Interface1。

interface Interface1 { }

接口Interface1 { }

class Class1 implements Interface1{ }

类Class1实现Interface1{}

class Class2 implements Interface1{}

类Class2实现Interface1 { }

Now, I want to create a List of classes that implement Interface1. I was trying to do something like:

现在，我想创建一个实现Interface1的类的列表。我想做的是:

List<Class<Interface1>> classes = new List<Class<Interface1>>(); classes.add(Class1.class); classes.add(Class2.class);

列表 <类 >类=新列表 <类 >();classes.add(Class1.class);classes.add(Class2.class);

But this doesn't work. I get the compiler error: Class1.class is of type Class<Class1> and so cannot be added to the list

但这是行不通的。我得到了编译器错误:Class1。类是类的类型 ，所以不能添加到列表中。

Is there a way to achieve what I intend to do?

有没有办法达到我的目的?

1 个解决方案

#1

Use a wildcard bounded by your interface type

使用与您的接口类型绑定的通配符。

List<Class<? extends Interface1>> classes = new ArrayList<Class<? extends Interface1>>();
classes.add(Class1.class);
classes.add(Class2.class);
classes.add(String.class); // won't compile