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 ...

Java object serialization is a feature of the JDK that is far too often overlooked. When a developer puts together a prototype or cooks up a proof of concept, simply saving a serialized Java object to ...

Get to know the Java persistence standard based on Hibernate and learn how to use JPA to store and manage Java objects in a relational or NoSQL database.

Learn about serialization in Java with our comprehensive tutorial. We provide examples to help you understand how serialization works.

Java Console class input and ouput The easiest way to garner user input in a Java program is to use the System’s Console class. Introduced in Java 6, Java’s System Console class provides two simple ...

Compared to other choices, Java is not that convenient for creating simple command-line driven apps. The combination of GraalVM and Picocli aims to change that.