This post explains how to call a method in Java. Learn how to define methods, call them from other classes, and pass arguments!

Using generics results in more robust code and avoids ClassCastExceptions in your Java programs. This in-depth tutorial introduces you to generics and their types and methods. Generics are used in ...

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

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

There is a reason why Java method modifiers exist. If you call public methods internally and don't understand why, your developers could face major class issues.

Quite often a Java Stream or other component needs an object passed to it in order to perform some type of calculation or process, but when the process is complete, nothing gets returned from the ...