Classes, fields, methods, constructors, and objects are the building blocks of object-based Java applications. This Java tutorial teaches you how to declare classes, describe attributes via fields ...

Copying objects is a common Java programming operation that has one serious trap. Here's how to avoid copying from an object reference and only copy the instance and values you want.

This post shows readers how to create an array in Java. Including: Array Lists, multidimensional arrays, maps, and more.

Java object serialization is a feature of the JDK that is far too often overlooked. ... Since we expect the JVM to perform Java deserialization, we don’t need to create an instance of the Score class, ...

The class in this example only defines properties. It contains no explicitly defined Java constructors. When no explicitly defined constructors exist, Java's virtual machine makes object creation ...