To solve these problems, Java embraced a new approach to exception handling. In Java, we combine objects that describe exceptions with a mechanism based on throwing and catching these objects.

The output from both examples looks like this: ERROR: NullPointerException encountered while trying to adding String to Deque that is set to null. java.lang.NullPointerException ...

Some exceptions in Java must be handled in the developer's code. Other exceptions can occur without any exception handling semantics at all. When an exception must be handled with try-and-catch ...