什么时候应该使用 Throwable 而不是 new Exception?
给定:Throwable 是 Exception 的超类.
Given: Throwable is Exception's superclass.
当我阅读有关编写自己的异常"的文本时，我看到 Throwable 在 catch 块中使用的示例，其他文本显示 new Exception() 在 catch 块中使用.我还没有看到什么时候应该使用每一个的解释.
When I read texts on writing your own 'exceptions', I see examples of Throwable being used in the catch block and other texts show new Exception() being used in the catch block. I have yet to see an explanation of when one should use each.
我的问题是，什么时候应该使用Throwable，什么时候应该使用new Exception()?
My question is this, when should Throwable be used and when should new Exception() be used?
在 catch 或 else 块内使用:
Inside the catch or else block using either:
throw throwable;
或
throw new Exception();
(来自评论)提出这个问题的是我需要将异常"传递给同事正在构建的一段代码如果未构建集合.
(from comments) The issue that brought this up is that I need to pass an 'exception' to a piece of code a coworker is building if a collection does not get built.
在这种情况下，您可能想要抛出一个检查异常.你可以抛出一个 Exception，它的一个适当的现有子类(除了 RuntimeException 及其 unchecked 的子类，或 Exception 的自定义子类(例如CollectionBuildException").请参阅Java 异常教程 以了解最新情况有 Java 例外.
In that case, you might want to throw a checked exception. You could throw an Exception, an appropriate existing subclass of it (except RuntimeException and its subclasses which are unchecked), or a custom subclass of Exception (e.g. "CollectionBuildException"). See the Java Tutorial on Exceptions to get up to speed with Java exceptions.