Java - Oracle

OpenJDK

Java Tutorial - tutorialspoint

Java Tutorial - w3schools

Getting Started with Java in Visual Studio Code

Learn Java – Free Java Courses for Beginners - freecodecamp

Maven is a build automation tool used primarily for Java projects. Maven can also be used to build and manage projects written in C#, Ruby, Scala, and other languages. The Maven project is hosted by The Apache Software Foundation, where it was formerly part of the Jakarta Project.

Wikipedia

Maven – Welcome to Apache Maven

Maven Central

Maven Tutorial - tutorialspoint