Using assertions can greatly increase your confidence in the correctness of your code. How to write an assertion in Java Assertions are implemented via the assert statement and java.lang ...

This post explains how to use classes in Java to build objects and organize your code. Also learn: constructors, static methods, and more!

Analyze the time and space complexity of your solution. Compare your solution to others and identify areas for improvement.

Introduced in Java 5, generics enhance the type safety of your code and make it easier to read. This helps you avoid runtime errors like the ClassCastException, which happens when you try to cast ...

With typical, standalone Java programs, developer must compile source code into bytecode with the javac utility, and then run that bytecode on the JVM. That’s not necessary with JShell. JShell reads ...

More to the point, Java 8 is no longer supported by Oracle. Java 11 and Java 17 are the new LTS Java releases. The next LTS release, Java 21, is coming in 10 months. If you are using Java 8, you must ...

The example code below shows how to use Java’s DirectoryStream in a method to list the files of a directory: public Set<String> listFilesUsingDirectoryStream(String dir) ...

In Java, we don’t need to write “THEN.” Instead, we use an open curly bracket to say that everything that follows is part of that “code block” and should run under the conditions we specify.