In the current series of posts I am writing on reducing the number of parameters required to call Java methods and constructors, I have focused so far on approaches that directly affect the ...

Prior to Java 8, there were two approaches you could take when writing a method that was unable to return a value under certain circumstances. Either you could throw an exception, or you could return ...

Java allows for Covariant Return Types, which means you can vary your return type as long you are returning a subclass of your specified return type. Method Overriding allows a subclass to override ...

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

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.

What is the contract between equals() and hashcode()? Learn how these methods work together when comparing objects in Java.