The IntelliJ IDEA Blog

How would you feel if you tried to understand a code snippet, only to realize that some of the variables you were trying to make sense of, were never used? This could be due to the programming syntax constraints, or an oversight as a result of changes to a codebase over time. Would you like it if th…

"Just ignore the terms class, public, static and arg for now; we'll talk about it later". If you have ever mentioned these lines to a new Java student, who is about to execute their first 'HelloWorld' program, know that this is changing. If you are that student, well, congratulations, getting starte…

Typically, we create alternative solutions for tasks that are necessary, but not officially permitted. For instance, executing statements before super() in a derived class constructor was not officially allowed, even though it was important for, say, validating values being passed to the base class …

Even though defining conditions in code is one of the programming basics, developers didn’t use the old switch statements often because this feature was quite constrained in its capabilities. This is not the case anymore. With the addition of switch expressions and Pattern Matching, the switch const…