InfoWorld

Classes and objects in Java

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, ...
InfoWorld

How to use method references in Java

Method references are a shorthand way to write lambda expressions that call a single method. Rather than implementing a method in a functional interface, a method reference simply points to an ...
Android Authority

Java tutorial for beginners: Write a simple app with no previous experience

Java is one of the most in-demand programming languages in the world and one of the two official programming languages used in Android development (the other being Kotlin). Developers familiar with ...
TheServerSide

How to write your first Java program

Package a Jakarta EE 11 web application and Open Liberty runtime into one runnable JAR with Maven and the Liberty Maven Plugin. Use JUnit, Cucumber, REST Assured, Selenium and JMeter to test Java ...