Community driven content discussing all aspects of software development from DevOps to design patterns. They’re deprecating finalize. That’s a pretty drastic move. Finalize is defined right there in ...

Do you need to know how to sort Java objects in a collection, array, or map? Here's how to use the Comparable and Comparator interfaces and avoid ClassCastExceptions. Programmers frequently need to ...

We discuss how to work with directories, sub-directories, and traverse them using Java and the DirectoryStream method. Learn more. A directory is an organizational file system structure that contains ...

java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.lang.String.toLowerCase (java.util.Locale)' on a null object reference #7772 Closed AkashRatanpara opened on Apr ...

In this post, we will learn how to call a method in Java. This is a useful “chunk” of code that you can call from anywhere else in your program, thus preventing you from needing to write out the same ...

Scientists are developing more than 100 coronavirus vaccines using a range of techniques, some of which are well-established and some of which have never been approved for medical use before. Most of ...

While it seems so basic that it wouldn't require a mention, there's a basic and often violated software design principle pertaining to Java method modifiers that is in need of explanation. A public ...

JEP 266: More Concurrency Updates defines an interoperable publish-subscribe framework for reactive streams, enhancements to the java.util.concurrent.CompletableFuture class, and various other ...