How can you implement throwable to exception in Java?

8 months ago

Benjamin Taylor

1 minute

In Java, Throwable is the parent class of all exceptions, with Exception being a subclass of Throwable. Therefore, Throwable can be directly converted to Exception.

To convert a Throwable to an Exception, simply cast the Throwable object to an Exception object. For example:

try {
    // 可能会抛出异常的代码
    throw new Throwable("This is a Throwable");
} catch (Throwable t) {
    // 将Throwable转换为Exception
    Exception e = (Exception) t;
    // 处理Exception或者继续抛出
    throw e;
}

In actual usage, it is recommended to avoid converting Throwable to Exception as much as possible because Throwable is a more general exception class that may contain more information. It is better to selectively catch and handle different types of exceptions based on the actual situation.