Language Resources

You've got questions, we've got answers: Learn more about Java security manager, including how code compiles, if it runs, and what it displays. Then we'll probe the why and how.

January 20, 2016

by Nicolas Fränkel

· 26,702 Views · 11 Likes

Using PanelOverlay Windows

The UX component allows you to display PanelOverlays that "float" on top of a Panel. By showing and hiding the PanelOverlay you can make the PanelOverlay behave much like a "window". Check out the video to see how it's done.

January 20, 2016

by Amy Groden-Morrison

· 3,047 Views · 2 Likes

Pointers in Java

Learn the basics of differentiating references and pointers.

January 19, 2016

by Peter Verhas

CORE

· 25,640 Views · 9 Likes

JMS Queue Server and Client Example Based On an ActiveMQ Provider

The basics of messaging services for Java apps, along with a client example based on ActiveMQ.

January 16, 2016

by Tomasz J-ski

· 23,271 Views · 3 Likes

Playing With Spring Boot, Vaadin, and Kotlin

Spring Boot and Vaadin enthusiast, Nicolas Frankel, takes us through building an application in the JVM language Kotlin, using the two frameworks.

January 15, 2016

by Nicolas Fränkel

· 30,020 Views · 9 Likes

Query JSON Using SQL With Couchbase Query Workbench

Would you like to query a JSON document database using SQL-like syntax? Couchbase has N1QL for you. Read on to learn more.

January 14, 2016

by Arun Gupta

· 8,404 Views · 4 Likes

The MVVM Pattern – Dependency Injection

This post shows you how to build a C# application using the MVVM pattern. We'll create a feed reader for the example application.

January 14, 2016

by Matteo Pagani

· 13,381 Views · 1 Like

The Observer Pattern Using Java 8

Learn about the observer pattern using modern Java: What it is, specializations, common naming conventions, and more!

January 11, 2016

by Justin Albano

CORE

· 138,727 Views · 78 Likes

Leaner Java Collections With FastUtil

Learn more about the pros and cons of FastUtil vs Trove.

January 11, 2016

by Dustin Marx

· 18,597 Views · 12 Likes

Building Simple Data Access Layer Using JDBC

Here's how to build a data access layer with JDBC, including data transfer, database creation, and connecting to a database.

January 8, 2016

by Hany Ahmed

· 197,141 Views · 13 Likes

Simple Java SOAP Web Service Using JDK Tools

A tutorial on how to use JDK tools to publish and consume a simple SOAP web service.

January 7, 2016

by Hany Ahmed

· 120,188 Views · 36 Likes

Configuring Spring Boot for PostgreSQL

In this post, we will learn how to change Spring Boot from the default in-memory H2 to PostgreSQL.

January 7, 2016

by John Thompson

· 265,989 Views · 8 Likes

Programmatic Websocket Endpoints in Java EE 7

The Java Websocket API is versatile. In this 2-step post, you'll learn how to develop and deploy websocket endpoints.

January 6, 2016

by Abhishek Gupta

CORE

· 16,683 Views · 3 Likes

EXPLAIN FORMAT=JSON: Everything About attached_subqueries, optimized_away_subqueries, and materialized_from_subquery

EXPLAIN FORMAT=JSON provides some great details on subqueries optimization. Read on to learn more.

January 3, 2016

by Peter Zaitsev

· 4,771 Views · 2 Likes

Dynamic Class Enhancement with CGLib

Popular libraries like Spring use CGLib to dynamically generate classes at runtime. Understanding how it works can help you parse those notorious stack traces when something goes wrong.

January 2, 2016

by Alan Hohn

· 29,685 Views · 9 Likes