Java

Learn about using Java, a general-purpose, cross-platform programming language licensed under the GNU General Public License.

Using the Java Persistence API

Learn how to use the JPA by building an example app for a bike store.

There are six ways to compare strings in Java.

There are probably better languages than Java, depending on work requirements. But I haven't seen anything yet to pull me away.

Java's approach to object-oriented programming is the basis for almost everything in the language. Here's what you need to know.

Installing Elasticsearch is complex! Here's how to do it on a Mac.

Constructors are powerful components of programming. Use them to unlock the full potential of Java.