When creating your own exceptions, end the class name of the user-defined exception with the word "Exception," and implement the three common constructors, as shown in the following example. The ...

Runtime exceptions, or unchecked exceptions Compiler-enforced (checked) exceptions are instances of the Exception class or one of its subclasses — excluding the RuntimeException branch.

Java’s compile-time checking does a pretty good job of keeping exceptions safely caged—you can’t call a method that throws a checked exception without catching the exception or declaring ...