Modular code

Learn about modular code in this section, including information and resources on modular code tools, restful Web services, Web services specification, Web portal testing, Java server faces and server pages, servlet Java, modular containers and programming code. Also, find there is news and tips on code troubleshooting, Java and JVM performance tuning, software languages, UI patterns and Spring framework. Find expert advice, podcasts and tutorials on a variety of subjects in this section.

May 20, 2022 20 May'22
Docker run vs docker-compose: What's the difference?

Both docker run and docker-compose can be used to start Docker containers, but there are key differences between the two. Here we explore the differences between docker-compose and docker run, and ...
May 18, 2022 18 May'22
Dockerfile vs docker-compose: What's the difference?

Wondering what's the difference between Dockerfile and docker-compose? Using simple examples, we'll compare not only the Dockerfile and the docker-compose.yaml file, but also the docker build and ...
May 17, 2022 17 May'22
How to use docker-compose with Apache httpd example

Docker-compose and Apache httpd It's easy to start an Apache Docker image by issuing an imperative docker run command in PowerShell or a Linux terminal window. However, as the docker run command ...
May 17, 2022 17 May'22
How to dockerize Apache httpd websites example

Need to dockerize Apache? Want to build a custom Docker httpd image that hosts your website? Here we provide a simple Apache Dockerfile example that will build a custom httpd Docker image for your ...

Bring yourself up to speed with our introductory content

An example of how suppressed exceptions in Java work

Don't ignore suppressed exceptions. In this quick tutorial we show you how to anticipate when code will throw suppressed exceptions, along with the best practices to handle them. Continue Reading
A 12-factor app principles quiz for cloud-native developers

The 12-factor app principles are a must for those who perform cloud-native development. Try your hand at this 12-factor quiz to test your knowledge on the fundamentals. Continue Reading
embedded Tomcat

An embedded Tomcat server consists of a single Java web application along with a full Tomcat server distribution, packaged together and compressed into a single JAR, WAR or ZIP file. Continue Reading

Weigh the pros and cons of technologies, products and projects you are considering.

The pros, cons and challenges of containerized microservices

Containerized microservices are certainly a popular deployment approach, but are they the best? They can be, provided you overcome the unique challenges they present. Continue Reading
A monolithic vs. cloud-native migration quiz for developers

Are you prepared for a cloud-native migration? This quiz contrasts the microservice vs. monolithic approaches to software development and will help gauge your knowledge. Continue Reading
Is Apache Tomcat the right Java application server for you?

What is the best application server? The answer depends on what an enterprise is looking for. Compare Apache Tomcat to these four offerings to see which Java app server fits. Continue Reading

Learn to apply best practices and optimize your operations.

How to develop a dependable regression testing strategy

Haphazard code changes can quickly break any application. Learn what a successful regression testing strategy entails, including the necessary scope and test suite requirements. Continue Reading
Illustrated guide to containerization security

Container security concerns are keeping IT pros up at night. Discover why and what they're doing to secure containers as well as the applications and data that run within them. Continue Reading
Get these benefits when you simplify a WebSphere Portal URL

If your Portal URL displays the tired /wps/portal preamble in the browser's location bar, it's time to perform Portal URL simplification and change it. Continue Reading

We’ve gathered up expert advice and tips from professionals like you so that the answers you need are always available.

Simple Ajax file upload with pure JavaScript example

Do you need to perform an Ajax file upload with pure JavaScript? This example lays out the steps to accomplish an Ajax file upload without the need for a JavaScript library like jQuery or Dojo. Continue Reading
How to fix the 'HttpServlet not found' error in Eclipse

Have you run into the HttpServlet not found error? This tutorial will show you how to quickly fix this annoying Eclipse error message in three easy steps. Continue Reading
Don't git revert that last commit, git reset instead

Developers should only use git revert if they need to reverse out a specific change in their code. To simply undo a previous commit to a shared repository, use git reset instead. Continue Reading