Error handling is an essential part of programming in any language. In Java, there are several best practices to be aware of when handling errors that can help us write more robust code.
First off, always try to use checked exceptions rather than unchecked exceptions. Checked exceptions are exceptions that must be explicitly handled in the code. Unchecked exceptions are thrown and can be handled, but are not required to. In most cases, checked exceptions are much better because it forces the programmer to think about what should happen in the event of an error, and try to handle the exceptional case in a meaningful way.
Java also allows us to catch multiple exceptions using a single catch block. Again, this is generally seen as good programming practice since it allows us to handle multiple types of exceptions in one place, which allows us to write less code and be more efficient.
Finally, always ensure your code includes a mechanism for logging errors that can occur during the execution of a program. This allows us to trace and diagnose problems when failure does occur, as well as implement mechanisms for handling errors in a meaningful way.
try { //Do something } catch (Exception e) { Logger.error("Something went wrong: " + e); }