Use Java assertions to test your assumptions about program correctness and check them in your code.

This post explains how to use if statements in Java. Discover why flow control is so important, and how to use advanced keywords like "and" and "else." ...

Use Java's extends keyword to derive a child class from a parent class, invoke parent class constructors and methods, override methods, and more.

Which version of Java should you use in Linux? Learn how to easily switch between different versions with a tutorial from Jack Wallen.

If you need to control access to certain pieces of data in a class when writing multithreaded applications, see how you can use the volatile keyword to get a similar effect as using the ...

The reason why global constants in Java use the static and final keywords is because final ensures a variable cannot change, while static ensures only one copy of the constant variable is placed in ...

Sealed classes in Java let developers limit the creation and use of subclasses and preserve the class hierarchy. Here is how sealed classes in Java work.

This post explains how to use for loops in Java. Including advanced tricks like nested for loops, break, continue, and labels!