java - "A derived-class constructor cannot catch exceptions thrown by its base-class constructor."但能够捕获它

Question

下面的语句来自java的思考，“派生类构造函数无法捕获其基类构造函数抛出的异常。”但我能够捕获它。谁能解释一下我哪里出错了？

class Base {
    Base() throws CloneNotSupportedException {
        throw new CloneNotSupportedException();
    }
}

class Derived extends Base {

    Derived() throws CloneNotSupportedException, RuntimeException {}

    public static void main(String[] args) {
        try {
            Derived d = new Derived();
        }
        catch(CloneNotSupportedException e) {
            e.printStackTrace();
        }
        catch(RuntimeException re){}
    }
}

输出:

    java.lang.CloneNotSupportedException
    at Base.<init>(Coffee.java:4)
    at Derived.<init>(Coffee.java:9)
    at Derived.main(Coffee.java:14)

Answer 1

您没有在派生类的构造函数中捕获任何内容。您可以在 main 方法中捕获异常。因此，您并不与您发布的引文相矛盾。