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.

June 12, 2022 12 Jun'22
How to setup the Nginx Proxy Manager Docker example

Learn how to setup and install the Nginx Proxy Manager from Docker Hub. This simple tool greatly simplifies the configuration of Nginx reverse proxy servers, asset caching, host redirecting and SSL ...
June 11, 2022 11 Jun'22
Example Java String palindrome checker program using recursion

There are many ways to write a Java String palindrome program. In this Java palindrome example we demonstrate recursion and how the use of loops, arrays, Scanner and the reverse method can improve ...
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?

What's the difference between Dockerfile and docker-compose? These simple examples compare Dockerfile, the docker-compose.yaml file and important commands to build Docker images and run Docker ...

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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

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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.

How do I 'docker copy' a file from container to host?

Here's a quick example of how to copy a file inside a Docker container to the local filesystem of the host machine. With the ID or name of the container in hand, a Docker file copy operation is an ... Continue Reading
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