Language Resources

The Secrets of JQL Everyone Wished They Knew

JIRA's querying language, JQL, can be extremely useful. Look at some secrets when it comes to JQL that can help you make more effective use of your own JIRA instance.

January 12, 2018

by Maarten Cautreels

· 11,729 Views · 3 Likes

Achieving Scalability With Key-Value Databases in Java

Learn about key-value NoSQL databases, models, and structures, and get some code examples that use JNoSQL and Hazelcast.

January 11, 2018

by Otavio Santana

CORE

· 17,412 Views · 7 Likes

How to Fix Database Consistency and Integrity Issues

Learn about common SQL database consistency errors, how to fix them, and how to use the Stellar Phoenix SQL Database Repair software.

January 10, 2018

by Prashanth Jayaram

· 15,686 Views · 4 Likes

10 Best Frameworks and Libraries for AI

Look at some high-quality libraries that are used for artificial intelligence, their pros and cons, and some of their features.

January 10, 2018

by Anton Shaleynikov

· 182,187 Views · 30 Likes

Create Your Own Constraints With Bean Validation 2.0

Take a look at how you can create and export your own custom constraints for Bean Validation with this step-by-step tutorial.

January 9, 2018

by Hillmer Chona

· 107,041 Views · 19 Likes

Writing Java Microservices With WSO2 Microservices Framework for Java (MSF4J)

Learn about writing microservices in Java with WSO2 Microservices Framework to enable capabilities necessary in a production environment.

January 9, 2018

by Chanaka Fernando

CORE

· 12,379 Views · 2 Likes

Java-Based Fraud Detection With Spark MLlib

Learn how to develop an algorithm with Java and Spark MLlib that can detect fraud based on a dataset with seven million records.

January 9, 2018

by Klevis Ramo

· 19,990 Views · 10 Likes

A Guide to Getting Started Quickly With Android Feature Flags

Read on to learn how to quickly build an Android feature flag and go deeper into feature flag management for mobile app development.

January 9, 2018

by Erik Dietrich

· 6,313 Views · 1 Like

Jlink in Java 9

If you haven't played around with Jlink yet, see what Java 9's new command line tool can do to help you create a lightweight, custom JRE.

January 9, 2018

by Shubham Agarwal

· 51,136 Views · 59 Likes

Run and Configure Multiple Instances in a Single Tomcat Server

Learn how to set up several different instances of an application on your Tomcat server, and manipulate each of these instances independently.

Updated January 8, 2018

by Md Nasir Uddin Bhuiyan

· 83,554 Views · 27 Likes

Understanding flatMap

Taking a walk on Java's functional side? Here are a few good things to know about how flatMap works and what it offers for Optionals and Streams.

January 8, 2018

by Paweł Szeliga

· 37,813 Views · 19 Likes

Why Enabling SHA256 Support for XML Signatures Breaks JWT Signing

A developer describes a bug he ran into while trying to add authentication protocols to an application. Read on to see how he got around it!

January 8, 2018

by Anders Abel

· 6,290 Views · 1 Like

Kotlin: The Tuple Type

Get your feet wet with Tuples in Kotlin and how to easily define elements, deconstruct constituent types, and a few other tips to help you out.

January 5, 2018

by Biju Kunjummen

· 28,133 Views · 2 Likes

Angular Developer: JavaScript to TypeScript

We take a look at the differences between the different versions of Angular, as well as how they differ from React, and then how to use TS in your Angular projects.

January 5, 2018

by Chris Shatrov

· 61,371 Views · 15 Likes

Run Code on Startup With Play and Scala

Forget GlobalSettings. See how you can use eager singletons in Play to execute actions upon app startup, whether they're needed or not.

January 5, 2018

by Emmanouil Gkatziouras

CORE

· 18,121 Views · 9 Likes

How to Improve the Performance of a Java Application

Ensuring your Java application is running at peak performance can take some effort. Here's how you can help ensure the performance of your Java application is top notch.

January 4, 2018

by Eugen Paraschiv

· 61,681 Views · 47 Likes

Java Quiz 8: Upcasting and Downcasting Objects

Check in on the results from a previous quiz about unary operators in Java and try out your knowledge up upcasting and downcasting objects.

January 4, 2018

by Sar Maroof

· 16,822 Views · 4 Likes

Leaflet: Fit Polyline in View

We take a look at using Leaflet.js to help visualize a route on a map with the ability to ensure that the map is zoomed to show all of the points on a given route.

January 3, 2018

by Mark Needham

· 9,478 Views · 4 Likes

dotenv for Java and the JVM

Wish configuring your microservices was easy? Well, while it started with Ruby, dotenv has a Java port that brings configuration into a single method.

January 3, 2018

by Carmine DiMascio

· 43,855 Views · 14 Likes

Dockerizing Jenkins 2, Part 1: Declarative Build Pipeline With SonarQube Analysis

In the first part of this Dockerizing Jenkins series, learn to run Jenkins on Docker, and automate plugin installation, Java and Maven tool configuration, and more.

Updated January 2, 2018

by Kayan Azimov

· 125,306 Views · 43 Likes

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