From a programming perspective, Java exceptions are library types and language features used to represent and deal with program failure in code.

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 ...

You should learn basic Java programming before proceeding with this tutorial. It will help you get the basics of Java exception handling.

A common software antipattern is to log and rethrow exceptions in Java. Here we explain why doing so will make troubleshooting errors harder.