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

Java 25 Compact Source Files and Instance Main Methods

Use Java 25 compact source files and IO.readln() to build an interactive number guessing game without Scanner, imports or main-method boilerpl... Package a Jakarta EE 11 web application and Open ...
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 ...
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

Interfaces in Java

Java interfaces are different from classes, and it’s important to know how to use their special properties in your Java programs. This tutorial introduces the difference between classes and interfaces ...