Enterprise Java development strategy

Learn about enterprise Java and Java EE applications and software development. Our coverage of enterprise Java development includes the Java programming language; Java virtual machine (JVM) languages like Scala, Groovy and Grails; domain specific languages (DSLs); and other software programming languages.

Top Stories

Tip 27 Jan 2023
How developers can avoid remote work scams

Software developers can find good remote programming jobs, but some job offers are too good to be true. Follow these tips to spot remote job scams. Continue Reading
Tip 19 Jan 2023
Who should be the product owner in Scrum?

Who should be the Scrum product owner and how does an organization choose the right person for that job? It's not an easy decision, but it's a critical one for all Scrum projects. Continue Reading

Tip 12 Jan 2023

Tips and tricks for TypeScript programming

For those new to TypeScript or for Java developers transitioning into JavaScript, these three TypeScript tips and tricks modern day software developers will come in handy. Continue Reading
Tutorial 06 Jan 2023

11 lessons learned from writing my first Java program

You'll be amazed how easy it is to learn Java and write powerful cross-platform applications when writing your first Java program. Some misconceptions about Java just aren't true. Continue Reading
Blog Post 21 Dec 2022

The config-interface constructor design pattern in TypeScript

Object creation in TypeScript can be greatly simplified through the use of the config-interface constructor design pattern. Continue Reading
Blog Post 19 Dec 2022

Deliver software better, not faster

Managers and developers are pressured to complete projects on time and on-spec, but problems arise when speed outweighs quality. Here's why both sides are responsible to slow down and do things right. Continue Reading
Blog Post 16 Dec 2022

How to program to an interface in TypeScript

Abstraction is a key element in and domain driven design. For TypeScript developers, the ability to program to an interface helps make the concept of abstraction a reality. Continue Reading
Blog Post 09 Dec 2022

What is an octothorpe? Cool tech words and computer science slang

What is an octothorpe? How is the 'spaceship operator' used? And will saying 'shebang' get me in trouble? Here are 11 slang computer science words every developer in tech needs to know. Continue Reading
Tip 09 Dec 2022

Scrum vs. Kanban: What's the difference?

When you compare Scrum vs. Kanban, you realize there are as many similarities as there are differences. Here we help you choose between these two Agile frameworks. Continue Reading
Blog Post 04 Dec 2022

How do you say Udemy? The 11 most mispronounced tech terms

How do you say Udemy? How do you pronounce JSON or GIF? There's a right way and there's a wrong way. Learn the right way to say these commonly mispronounced tech terms. Continue Reading
Blog Post 26 Nov 2022

11 funny programmer jokes

Looking for some cringeworthy programmer jokes to make your developer friends smile? Here are 11 popular setups and punchlines for you to share with your tech friends. Continue Reading
Blog Post 15 Nov 2022

JDBC driver types explained

Here we explain the difference between the four JDBC driver types, and how to choose the right JDBC driver for your database-driven Java apps. Continue Reading
Blog Post 08 Nov 2022

Three interview success tips for tech job candidates

Don't be intimidated by an upcoming tech job interview. These tips will help you prepare how to answer tech questions and present yourself to give it your best shot. Continue Reading
Tip 25 Oct 2022

The differences between Java and TypeScript devs must know

Do you know Java? Are you trying to learn TypeScript? Here are five differences between TypeScript and Java that will make the learning transition easier. Continue Reading
Tip 20 Oct 2022

Product owner vs. product manager: What's the difference?

The job a product manager does for a company is quite different from the role of product owner on a Scrum team. Learn key differences between a product owner and product manager. Continue Reading
Blog Post 12 Oct 2022

My five-point ranking system to evaluate tech candidates

Worried about hiring the wrong tech candidate? Here's a tried and true, five point evaluation system that has regularly proven itself in the field. Continue Reading
Quiz 05 Oct 2022

Introduction to Scrum quiz

Want to prove your knowledge of Scrum? Tackle this 10-question Scrum introduction quiz and see how well you know the Scrum Masters, product owners and the Scrum Guide. Continue Reading
Quiz 30 Sep 2022

10 tough Scrum Master quiz questions

Here's a tough 10 question Scrum Master quiz to test you on how well you know the responsibilities of this important Scrum role and accountability. Continue Reading
Tutorial 29 Sep 2022

Your top 4 Java user input strategies

From System.in to the Scanner class, there are many ways to read user input into your Java programs. Find out which Java user input strategy is best for your software needs. Continue Reading
Quiz 29 Sep 2022

10 tough Agile quiz questions for software developers

Ready to embrace Agile for your software development projects? Take this quiz to gauge your grasp of the basics of Agile, and the core values and principles of the Agile Manifesto. Continue Reading
Tutorial 29 Sep 2022

How Java's System.in reads input from the user

The Java System.in component provides universal access to console-based user input. Learn how to make your applications interactive with this Java System.in tutorial. Continue Reading
Infographic 22 Sep 2022

Agile infographic: 10 facts about the Agile Manifesto

How well do you know the Manifesto for Agile software development? Here are 10 interesting facts about the Agile Manifesto's principles and values. Continue Reading
Tip 20 Sep 2022

Abstract pattern recognition skills aid developers and musicians

What do good programmers and musicians have in common? The ability to recognize and apply abstract patterns helps both roles keep their work in harmony. Continue Reading
Blog Post 16 Sep 2022

User input with a Java JOptionPane example

For new Java programmers, the JOptionPane class is a great visual and user-friendly introduction to user input and Swing-based programming. Here's how to get started. Continue Reading
Blog Post 10 Sep 2022

Java Scanner next() vs nextLine() methods: What's the difference?

Learn the distinction between next() and nextLine() methods, and how to use them in your code for different reasons. Continue Reading
Blog Post 09 Sep 2022

Java Exception handling best practices

Don't let the complexities of Java Exception handling get you down. Follow these top 10 Java Exception handling examples and you'll be an expert in handling errors in your Java code. Continue Reading
Blog Post 08 Aug 2022

Java Scanner User Input Example

This tutorial on how to use the Java Scanner for user input will quickly show you how to import java.util, take String, int, double and char input, and teach you the difference between the ... Continue Reading
Blog Post 24 Jul 2022

How to format a Java String with printf example

The Java String printf method makes adding and formatting text incredibly easy. In this quick tutorial, you'll learn by example how to format, justify, pad and case output printed with Java's ... Continue Reading
Blog Post 23 Jul 2022

Java Scanner String input example

Java's Scanner class provides a simple and effective way to handle user input. In this simple example, we show how to use Java's Scanner for String input with methods like next(), nextLine() and ... Continue Reading
Blog Post 18 Jul 2022

How to format a Java int or long with printf example

Here's a quick tutorial on how to use printf to format Java int, long, short and byte values. It's pretty easy to do. And the output you can generate can be very visually appealing. Continue Reading
Blog Post 18 Jul 2022

Java double brace initialization explained by example

Java's double brace initialization feature saves time and shaves off a few keystrokes when you initialize a Set or seed a List for testing. Here's a quick example of how to use Java's double brace ... Continue Reading
Blog Post 17 Jul 2022

Java Scanner char input example without nextChar

How to add Java Scanner char support The Java Scanner class provides methods that take String input and convert that String into any Java primitive type you might need, except for one: the char. ... Continue Reading
Blog Post 17 Jul 2022

How to format a Java table with printf example

Why not make your console output look pretty? Create, format and print data tables with Java printf statements, along with a clever combination of dashes, pipelines and printf placeholders. Continue Reading
Blog Post 13 Jul 2022

Java comment types by example

There are three types of Java comments developers need to know. Here we show you how to use block, inline and JavaDoc comments with simple examples to make best practices clear. Continue Reading
Feature 07 Jul 2022

Is HTML a programming language?

Unlike Java, Python or C, HTML is not a programming language because it lacks variables, conditional statements or iterative loops. But so what? HTML has a bigger role to play. Continue Reading
Blog Post 13 Jun 2022

How to format a Java double with printf example

Formatting output in Java doesn't have to be hard. Here's how to use Java printf with double values to control decimal precision, thousands groupings and character width when you format ... Continue Reading
Blog Post 11 Jun 2022

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 ... Continue Reading
Blog Post 10 Jun 2022

How to git push an existing project to Bitbucket

Follow these simple steps to push an existing project to a Bitbucket repo, and successfully add all of the code on your local machine into a remote Bitbucket repository. Continue Reading
Blog Post 09 Jun 2022

How do I find the Java array length?

How do you find the size of an array in Java? Just use the array length property. But there are some 'gotchas' to be aware of. Read this Java array length tutorial and stay clear of runtime errors ... Continue Reading
Blog Post 09 Jun 2022

How do I find the Java String length?

The need to find the length of a Java String is a common programming requirement. Learn how to get the size of a Java String and avoid lengthy errors developers often encounter. Continue Reading
Blog Post 09 Jun 2022

Java length vs length(): What's the difference?

Have you ever been confused between length and length() in Java? Here we show you the difference between Java length properties and methods, and when to use them in your code. Continue Reading
Blog Post 08 Jun 2022

Fix the 'expected a step' Jenkins error

Have you encountered the 'expected a step' error in Jenkins? Are you using a declarative pipeline? Here's the most likely way to fix the 'expected a step' error in Jenkins. Continue Reading
Blog Post 07 Jun 2022

The best Jar file opener app

There are many Java JAR file openers available on the market today. Here are the top 5 JAR file openers for both Java developers and casual users to install on their Windows or Linux machines. Continue Reading
Blog Post 07 Jun 2022

How to open a JAR file

You can open JAR files with any ZIP utility. A JAR file is just a special type of ZIP file. And to run a Java JAR file, just install Java and either double-click it or run the JAR file at the ... Continue Reading
Blog Post 06 Jun 2022

How to setup a Docker Nginx reverse proxy server example

The ability to put an Nginx reverse proxy in a Docker container greatly simplifies enterprise architectures. Here's how easy it is to setup and configure an Nginx reverse proxy Docker image and ... Continue Reading
Blog Post 05 Jun 2022

How to setup an Nginx load balancer example

Nginx is among the most popular load balancers and reverse proxy servers for enterprises. Here's how to quickly setup Nginx as a load balancer and configure weighted nodes and sticky sessions. Continue Reading
Blog Post 01 Jun 2022

How do I install Java on Windows?

To install Java on Windows you only need to follow these five simple steps. In this quick tutorial, we'll show you how to setup Java on Windows and run apps like Minecraft and Apache Tomcat on the JDK. Continue Reading
Blog Post 31 May 2022

How to write an Agile user story

Agile user stories describe software project requirements as needed by different end users. Follow these guidelines to translate user needs into product features and business value. Continue Reading
Blog Post 31 May 2022

What should developers know about machine learning?

As artificial intelligence and machine learning become increasingly important in the world of enterprise development, programmers need to know the ins and outs of AI and ML. Continue Reading
Blog Post 30 May 2022

How to git push an existing project to GitLab

Steps to push an existing project to GitLab Follow these steps to add and import a new project into an existing GitLab repository: Create a GitLab repository for the current project. Copy the ... Continue Reading
Blog Post 29 May 2022

Create a Bitbucket App Password example

Learn how to quickly create a Bitbucket App Password so your Git push and clone operations don't fail with fatal 'invalid credentials for authentication' errors. Continue Reading
Blog Post 27 May 2022

How to setup PHP on Nginx with fastCGI (PHP-FPM) example

Here's a quick tutorial on how to setup Nginx with PHP support. The key? The installation of fastCGI, aka PHP-FPM, so Nginx can serve PHP files to clients. Continue Reading
Blog Post 24 May 2022

How to customize Git Bash Shell prompt settings

Want to style and customize your user and hostname properties that display in the Git Bash prompt? This quick example shows you how to quickly customize your Git Bash terminal window. Continue Reading
Tip 19 May 2022

Agile versus Scrum: What's the difference?

What's the difference between Agile and Scrum? What are their similarities? Learn how to compare and contrast these two popular software development frameworks and methodologies. Continue Reading
Blog Post 18 May 2022

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 ... Continue Reading
Opinion 18 May 2022

How to communicate effectively in the workplace

Don't bury the lead. Grab your audience's attention early. Be graceful when others disagree. These and other tips will help you communicate more effectively with your peers. Continue Reading
Blog Post 20 Apr 2022

CDI Full vs CDI Lite: What's new in Contexts and Dependency Injection 4.0

There's an interesting change packaged inside the CDI 4.0 release that will change the way you think about the API. Version 4.0 of Jakarta Contexts and Dependency Injection (CDI) changed the ... Continue Reading
Answer 18 Apr 2022

What are checked vs. unchecked exceptions in Java?

Understand the difference between checked and unchecked exceptions in Java, and learn how to handle these problem conditions properly and gracefully. Continue Reading
Tip 13 Apr 2022

Either log or rethrow Java exceptions, but never do both

When an exception occurs in your Java code, you can log it or you can rethrow it -- but don't do both. Here's why you must avoid that exception handling antipattern. Continue Reading
Tip 01 Apr 2022

7 tips to choose the right Java library

Your application is only as secure and reliable as the external libraries you use. Here's a list of the top 7 things to consider when choosing a software library for your project. Continue Reading
Tutorial 30 Mar 2022

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
Tutorial 30 Mar 2022

A simple 'try with resources' in Java example

Java's 'try-with-resources' exception handling feature can help you write better, more effective Java code. Here's a quick example of the try with resources construct in action. Continue Reading
Quiz 21 Mar 2022

A tough, multiple choice Java exception handling quiz

Just how well do you know exception handling in Java? These 10 tough multiple-choice questions on checked and unchecked exceptions will test your error handling mettle. Continue Reading
Tip 16 Mar 2022

Fix these 10 common examples of the RuntimeException in Java

Don't let the occurrence of a RuntimeException in Java bring your code to a standstill. Here are 10 examples of how to avoid runtime exceptions in Java. Continue Reading
Tip 08 Mar 2022

Fix the 5 most common types of runtime errors in Java

The key to bug-free code is an awareness of the most common types of runtime errors in Java, along with the knowledge of how to avoid them. Continue Reading
Blog Post 14 Feb 2022

Noon is not 12am. Midnight is not 12pm. Code appropriately.

The terms 12am and 12pm make no logical sense. Neither one is noon or midnight. Remove the 12am vernacular from your applications. Users will thank you. Continue Reading
Tutorial 11 Feb 2022

Fix the top 10 most common compile time errors in Java

Flummoxed why your Java code won't compile? Here are the 10 most commonly encountered Java compile errors, along with the fixes that will get your code working in no time. Continue Reading
Blog Post 07 Feb 2022

Node.js file upload example with Ajax and JavaScript

The Node.js file upload process is made easy with libraries like 'fs' and 'formidable.' In this JavaScript and Node.js file upload example, we show you how to move files from the browser to the ... Continue Reading
Tip 01 Feb 2022

Want to become a freelance developer? Weigh these 4 factors

Some people want independence even if it sacrifices the security of a salaried position. Consider these criteria to see if being a freelance developer is the right choice for you. Continue Reading
Opinion 01 Feb 2022

5 tech trends that foretell the future of Java in 2022

Here's what 2022 has in store for developers, programmers and DevOps professionals who work in the server-side Java space. Continue Reading
Blog Post 25 Jan 2022

Why is the Bootstrap grid system 12 columns wide?

Ever wonder why they created a 12-column Bootstrap grid system, and not 10 or 15? It's the same reason there's 60 seconds in a minute, or 360 degrees in a circle. Continue Reading
Quiz 24 Jan 2022

12 tough Bootstrap 5 quiz questions for web developers

Just how well do you know Bootstrap 5? These 12 tough Bootstrap quiz questions will test your mettle. Continue Reading
Tip 21 Jan 2022

Why you must avoid ScrumBut at all costs

How do Scrum and ScrumBut compare? Darcy DeClute explains why ScrumBut is bad, and how you can avoid this Agile anti-pattern and stay true to Scrum's core principles. Continue Reading
Feature 19 Jan 2022

Ageism in software engineering is still a problem

Many developers want to program right up to retirement, but the reality of age discrimination unfairly hampers their career plans. Here's how to pitch experience as an asset. Continue Reading
Tip 10 Jan 2022

Binary and hexadecimal numbers explained for developers

For developers who are intimidated by bit shifts and hex operation, here's a thorough explanation of how binary and hexadecimal number systems work. Continue Reading
Blog Post 31 Dec 2021

The psychology of offering developers programming advice

Need to provide programming advice, or perhaps even harsh criticisms to a team of developers? Here's a nice way, pyscyhologically sound, way to do it. Continue Reading
Blog Post 25 Dec 2021

Simple Struts 2 file upload example

In this Struts 2 file upload example we show you to take a local resource and upload it to a remote Java application server. All a developer needs is a file, a browser and an Internet connection ... Continue Reading
Tip 06 Dec 2021

Problems with Java modules still plague developers

The Java Platform Module System promised to fix the missteps of the past. Unfortunately, it has repeated the problems that plagued OSGi and JBoss Modules. Continue Reading
Blog Post 29 Nov 2021

Top 5 things to know about the Jakarta Servlet 6.0 API release

Jakarta EE 10 includes a full increment release of the Servlet API. Here are the top 5 features Java devs will enjoy when the Jakarta Servlet 6.0 API arrives. Continue Reading
Blog Post 29 Nov 2021

Kubernetes vs Docker Compose: What's the difference?

Confused between the difference between Kubernetes and Docker compose? Here we explain how the two DevOps construct are similar, and how they are different. Continue Reading
Blog Post 29 Nov 2021

How to use jarsigner to sign JARs files example

Here's a quick example of how to use Java's jarsigner to digitially sign JAR files. Continue Reading
Blog Post 29 Nov 2021

The 5 things devs should know about the Jakarta Servlet 6.0 API release

Jakarta EE 10 includes a full increment release of the Servlet API. Here are the top 5 features Java devs will enjoy when the Jakarta Servlet 6.0 API arrives. Continue Reading
Tip 18 Nov 2021

Iterator vs. ListIterator: Which interface should you choose?

When the need exists to manipulate an ordered collection, the Java Iterator runs out of steam. Learn how Java's ListIterator improves upon the more generic Iterator interface. Continue Reading
Tip 14 Oct 2021

5 best Java 17 features that developers will love

The new Java 17 release contains plenty of new features that will intrigue developers. Here are five features that should push developers off the Java 11 LTS to JDK 17. Continue Reading
Tip 30 Sep 2021

3 simple Java Hello World examples

Are you a developer who's new to Java? Here are three ways to write a Hello World program in Java on Eclipse and get started with the popular programming language. Continue Reading
Feature 17 Sep 2021

5 reasons why Java is still the best programming language

Here's why Java is still the most popular programming language for everything from mobile development to enterprise and server-side applications that empower the middle tier. Continue Reading
Blog Post 14 Sep 2021

Every changes between JDK 11 and the Java 17 LTS release

Wondering what's included in the new Java 17 LTS release? Here's a list of all the changes made to the JDK between the Java 11 and Java 17 LTS releases. Continue Reading
Feature 07 Sep 2021

Java Iterator vs. Enumeration: Why Iterator is the right call

Do you need to loop through a collection of objects and need to decide between a Java Iterator or an Enumeration? Here's why you should choose an Iterator almost every time. Continue Reading
Guest Post 18 Aug 2021

The benefits and drawbacks of Java's fail-safe iterators

Iterators in Java are a simple mechanism to help developers avoid runtime exceptions. Let's explore the difference between fail-fast and fail-safe iterators. Continue Reading
Blog Post 01 Aug 2021

RPA examples that prove robotic automation works

Although Robotic Process Automation has been around for years, banks and financial institutions continue to find new RPA use cases to save time, effort and money. Continue Reading
Answer 27 Jul 2021

Kubectl apply vs. create: What's the difference?

The Kubernetes command-line tool, kubectl lets you control your Kubernetes clusters. But two of its operations -- apply and create -- can often be confused. Continue Reading
Answer 26 Jul 2021

Vagrant vs. Docker: How these cloud-native tools differ

Both Docker and Vagrant are important parts of a cloud-native stack, but they have very different roles when it comes to supporting containers and VMs within the CI/CD process. Continue Reading
Quiz 20 Jul 2021

Introduction to Docker quiz

These Docker questions and answers will test your knowledge of the fundamentals of Docker, but it won't be easy. Take this quiz and see if we can stump you. Continue Reading
Answer 16 Jul 2021

Kebab vs. camel case: How these naming conventions differ

What is the difference between a variable written in kebab case vs. camel case? Here we'll show you how these naming conventions differ and when to use one over the other. Continue Reading
Feature 25 Jun 2021

Java naming conventions, explained

You could start a Java variable with a dollar sign, but no one does. When you write Java code, always follow these standard Java naming conventions. Continue Reading
Answer 23 Jun 2021

Why is Java platform-independent?

Sun Microsystems architects designed Java to be cross-platform. But why? Here we look at not only why Java works across platforms, but also how it achieves its platform independence. Continue Reading
Blog Post 07 Jun 2021

Delete the Windows recovery partition on a Lenovo Thinkpad or Desktop

Recovery drive partition removal If you've purchased a laptop from Lenovo or desktop from Asus, there's a good chance there's a hidden recovery partition immediately after the boot sector. The ... Continue Reading
Blog Post 03 Jun 2021

Fix the ConcurrentModificationException

Has the ConcurrentModificationException been thrown in you Java app? Here are four simple ways to fix the ConcurrentModificationException in your code. Continue Reading
Answer 26 May 2021

Terraform vs. Ansible: How do these DevOps tools differ?

There is some overlap between the two tools, but they really should coexist. Here we show you where Ansible and Terraform fit into your cloud-native, DevOps stack. Continue Reading
Answer 20 May 2021

Is a Docker or Kubernetes certification worth it?

Some DevOps professionals shun industry certifications. But in the cloud-native world, Docker and Kubernetes certifications make prospective job candidates stand out from the rest. Continue Reading
Tip 30 Apr 2021

10 Jenkins alternatives for developers

Looking for an alternative to Jenkins in your CI/CD environment? Consider options from Atlassian, GitLab, Spinnaker and more to see if they better fit your development needs. Continue Reading
Answer 30 Apr 2021

Camel case vs. snake case: What's the difference?

The use of white space is what separates camel case and snake case. Camel case has none, while snake case uses underscores. Let's review some examples to make this clear. Continue Reading