Classes, fields, methods, constructors, and objects are the building blocks of object-based Java applications ... array to a method or constructor. To use varargs, declare the method or ...

Classes and objects in Java must be initialized before they are used. You’ve previously learned that class fields are initialized to default values when classes are loaded, and that objects are ...

In my previous article, I described how to use Java’s reference objects, SoftReferenceand WeakReference, to build weak references and mark blocks as reclaimable in a simple application.

Imagine you are an expert object-oriented Java developer who meticulously ... while making code more readable and easier to maintain. Here's how it works. Use sealed classes in Java to control your ...

In this Java serialization example, we will use both the ObjectOutputStream and the ObjectInputStream ... so instead of setter methods, the Java serialization object will have methods called ...