Java Resources

Singleton Pattern: The Good, the Bad, and the Ugly

The singleton pattern is one of the most well-known design patterns... wait, or is it an anti-pattern? See how to implement the singleton in Java EE, and look at some of the pros and cons.

May 25, 2016

by Alex Theedom

· 14,697 Views · 9 Likes

Jackson Dependency Issue in Spring Boot with Maven Build

In this article, a Spring Boot 1.3.3 dependency issue is explored and an override is provided.

May 23, 2016

by John Thompson

· 168,161 Views · 10 Likes

Java Suspended Thread States

Java threads can be in six different states: NEW, RUNNABLE, BLOCKED, WAITING, TIMED_WAITING, and TERMINATED. We will explore them here.

May 19, 2016

by Ram Lakshmanan

CORE

· 158,689 Views · 19 Likes

Java 8 HashMaps, Keys, and the Comparable Interface

In this post, we are going to discover a new, important feature that Java 8 brings to us in the event of hash collisions.

May 18, 2016

by Tamás Györfi

· 35,469 Views · 41 Likes

Log4J 2 Configuration: Using the Properties File

This post looks at using and configuring the Log4j 2 properties file, letting you change various configuration options without modifying your application code.

May 18, 2016

by John Thompson

· 344,794 Views · 13 Likes

Working With Akka Actors

Here we're going to look at the Akka actor model with a simple example: fetching weather data from Yahoo.

May 18, 2016

by Hardik Pandya

· 11,906 Views · 10 Likes

Dynamic HTML Templates With FreeMarker and Vaadin

Skip the HTML! Learn about utilizing FreeMarker and Vaadin to help you generate HTML templates, so you don't have to write them yourself.

May 17, 2016

by Alejandro Duarte

CORE

· 14,336 Views · 2 Likes

Java 8: Declare Private and Protected Methods in Interfaces

In the upcoming Java 9 release, it will be possible to declare private and protected methods in interfaces. Learn how you can use almost the same features in Java 8 interfaces today.

May 14, 2016

by Per-Åke Minborg

· 42,286 Views · 13 Likes

Java EE 8 MVC: Global Exception Handling

Adding global exception handling to an Java EE MVC application is quite simple.

May 13, 2016

by Michael Scharhag

· 11,761 Views · 8 Likes

James Gosling on Oracle, Once Again

James Gosling sounds off on Oracle's culture and handling of Java, clarifies some past comments, and addresses his "low expectations."

May 11, 2016

by Dave Fecak

· 45,001 Views · 33 Likes

Comparing Golang with Java

The first impressions of a Java enthusiast when looking at Go's features.

May 11, 2016

by Peter Verhas

CORE

· 73,630 Views · 24 Likes

A Polyglot's Guide to Multiple Dispatch Part 4: Clojure

The conclusion of this series about multiple dispatch focuses on using the technique in Clojure.

May 11, 2016

by Eli Bendersky

· 5,480 Views · 1 Like

Restful Java Metering by Dropwizard Metrics

Dropwizard has taken the Java world by storm with it's ease of use and great functionality. The metrics library is particularly powerful for anyone wanting to measure statistics in their Java applications.

May 10, 2016

by Thamizh Arasu

· 21,515 Views · 6 Likes

Major Benefits and Limits of Autowiring in Spring Java Web Development

In this post, you will learn about autowiring—its limitations, advantages, and disadvantages in detail. You also get to know about different modes of autowiring used in Java web development.

May 10, 2016

by James Warner

· 100,771 Views · 4 Likes

Is Polyglot Programming Practical?

This article discusses the history of polyglot programming, and considers whether it's still a valid premise.

May 10, 2016

by Keith Gregory

· 25,479 Views · 46 Likes

Understanding the Java Garbage Collection Log

To diagnose any memory problems, the Garbage Collection log file is the best place to start. Take a look at the anatomy of a GC log file in this helpful article.

Updated May 5, 2016

by Ram Lakshmanan

CORE

· 196,565 Views · 39 Likes

Java 8: Lambda Functions—Usage and Examples

One of the major new language features in Java 8 is the lambda function. In fact, it is one of the biggest changes since the Java 1 release. Take a look at this introduction to Java 8's lambda function.

May 4, 2016

by Hari Kiran G

· 210,766 Views · 10 Likes