Java Resources

How To Perform a Productive Testing by using JUnit 5 on Kotlin

Data-driven testing using JUnit 5 Kotlin provides usability in the development and conciseness of the code, as well as many convenient features for writing tests.

January 18, 2018

by Alex Maison

· 20,327 Views · 3 Likes

Docker and Java: Why My App Is OOMKilled

See how Java 9 has adapted so that you can run JVM-based workloads in Docker containers or through Kubernetes without worrying about hitting your memory limits

January 18, 2018

by Sebastian Toader

· 53,117 Views · 29 Likes

Bootstrapping Microservices - Getting Your Microservice Architecture Ready

Check out this open source project to get a start on your microservices architecture, learn about the tools you need to connect your microservices, and more.

January 17, 2018

by Alexsandro Souza

· 21,118 Views · 41 Likes

Using Google's Protocol Buffers With Java

Straight out of Effective Java, Third Edition, we tackle the flaws in Java serialization and how to counter them using Google's Protocol Buffers as an example.

January 17, 2018

by Dustin Marx

· 100,841 Views · 19 Likes

An Introduction to Hollow JARs

With JAR files, you've got your fat JARs, thin JARs, and skinny JARs, but here's an overview of Hollow JARs and how they sit between an app server and an Uber JAR.

January 16, 2018

by Paul Stovell

· 13,844 Views · 3 Likes

Java Image Cat and Dog Recognition With Deep Neural Networks

It's a cat! It's a dog! It's a Java-based application that uses deep learning and neural networks to detect whether an image is a cat or a dog!

Updated January 15, 2018

by Klevis Ramo

· 30,573 Views · 5 Likes

Converting Collections to Maps With JDK 8

Java 8 makes it easy to convert Lists, Sets, and arrays to Maps. Here are a couple of potential use cases and a step-by-step guide.

Updated January 15, 2018

by Dustin Marx

· 30,984 Views · 8 Likes

Java 9 Module Services

This deep dive into Java 9 module services tackles how the ServiceLoader class has changed, how to browse the classpath, and how it all ties together in Jigsaw.

January 14, 2018

by Peter Verhas

CORE

· 21,382 Views · 15 Likes

Java 9 Modules (Part 1): Introduction

Get your feet wet with Java 9's modularity by learning how to create, compile, and execute single- and multi-module projects all from the command line.

January 13, 2018

by Gunter Rotsaert

CORE

· 92,458 Views · 47 Likes

The Highly Useful Java ChronoUnit Enum

When it comes to date and time manipulations, the ChronoUnit enum might be your best aid. See how and when to use it in your Java projects.

January 12, 2018

by Dustin Marx

· 25,608 Views · 17 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

· 17,306 Views · 6 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

· 12,301 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

· 19,877 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

· 6,227 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

· 51,049 Views · 59 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

· 37,676 Views · 19 Likes

Spring-Based Apps: Migrating to JUnit 5

With JUnit 5 newly available, we take a look at how migrating your JUnit 4 tests to JUnit 5 might go as well as a couple of pitfalls to avoid.

January 8, 2018

by Biju Kunjummen

· 27,445 Views · 4 Likes

7 Things to Know for Getting Started With Spring Boot

Just getting into Spring Boot? Then check out this post for a helping hand in understanding Spring Boot's architecture and functionality.

January 6, 2018

by Ranga Karanam

CORE

· 237,651 Views · 70 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

· 61,559 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

· 16,719 Views · 4 Likes

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