5 reasons why Java is still the best programming language

Java is easy to learn

Every programming language comes with a learning curve, but Java shares many similarities with C, C++ and JavaScript. Anyone with experience in any of those languages will pick up Java syntax quickly.

Java also has a very rigid and predictable set of rules that govern code structure. This contrasts starkly with other, untyped scripting languages where it seems like anything goes. When you try to master a new programming language, a clear set of consistently enforced rules makes learning easier.

The rich set of Java APIs

The Java API is extensive. The standard JDK comes with over 200 built-in packages containing Java APIs that allow for everything from parsing XML to translating between time zones. When developers add on the Jakarta EE APIs, they have an even more extensive library of APIs that allow for the development of complex, middle-tier applications and cloud-native microservices.

But the rich ecosystem of Java APIs extends far beyond those sanctioned by Oracle or provisioned through Jakarta.

Java's tool ecosystem

The application development landscape is filled with software development tools written in Java -- by Java developers -- that are designed to simplify and streamline the development, deployment and even decommissioning of Java applications. A few examples of tools written in Java include:

• Gradle: an incredibly powerful, open source build tool
• Maven: an open source tool designed to solve dependency management problems
• Jenkins: a Java-based continuous integration and delivery tool

First-order Android Support

Android is the world's most popular mobile phone OS and Java is the de facto programming language for Android application development.

While Android's version of Java isn't exactly the same as what you'd find on the JDK, Google did copy over 11,500 lines of code from the Java Standard Edition when they built their Java clone. As a result, developers can expect that the version of Java they see on Android is pretty close to the original.

Forward evolution with backwards compatibility

Java evolves slowly, but it does evolve. With over 25 years of evolution, Java has plenty of evolutionary improvements to be proud about.

From the bulletproof modularity system that was delivered as part of Project Jigsaw, to the recently added ability of functional programming in Java with lambda functions, Java continues to implement big changes that the community demands. Incremental additions in non-LTS releases, such as the the addition of the new Record data typeand garbage collectors for improved memory management, showcase that the JDK is also constantly evolving.

I personally compiled and packaged some complicated code that was written 20 years ago, and it ran without any issues on the latest Java 17 release. When enterprise clients know that things won't break when they perform a JVM upgrade, it gives just another reason why they choose to stick with Java as the best programming language.