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Feb 24, 2011 · Use: System.getProperty("java.version"); Where java.version can be replaced with one of the many other system properties related to the current Java version. Here is a table of them:
Jul 2, 2023 · Java is a widely recognized programming language renowned for its robustness, scalability, and extensive ecosystem. Over the years, Java has undergone significant advancements and introduced ...
- Overview
- Java Version Naming Convention
- Getting Java Version
- Conclusion
Sometimes when programming in Java, it may be helpful to programmatically find the version of Java that we’re using. In this tutorial, we’ll look at a few ways to get the Java version.
Up until Java 9, the Java version did not follow the Semantic Versioning. The format was 1.X.Y_Z. X and Y indicate major and minor versions, respectively. Z is used to indicate an update release and separated by underscore “_”. For example, 1.8.0_181. For Java 9 and beyond, the Java version follows the Semantic Versioning. The Semantic Versioning u...
3.1. Using System.getProperty
A system property is a key-value pair that the Java runtime provides. The java.versionis a system property that provides the Java version. Let’s define a method for getting the version: To support both Java version formats, we should check the first number until the dot.
3.2. Using Apache Commons Lang 3
A second approach for getting the Java version is via the Apache Commons Lang 3 library. We first need to add the commons-lang3 Maven dependency to our pom.xmlfile: We’ll use the SystemUtilsclass to obtain information about the Java platform. Let’s define a method for this purpose: We are using the JAVA_SPECIFICATION_VERSION that is intended to mirror available values from the java.specification.versionSystem property.
3.3. Using Runtime.version
In Java 9 and above, we can use the Runtime.version()to get version information. Let’s define a method for this purpose:
In this article, we describe a few ways to obtain the Java version. As usual, all code samples used in this tutorial are available over on GitHub.
Jul 20, 2024 · java.version: specifies the Java Development Kit version being utilized; java.runtime.version: indicates the version of the Java Runtime Environment currently in use; java.vm.version: specifies the version of the Java Virtual Machine ; In the above example, the Eclipse IDE is running under Java version 17.0.10. 3.2.
Nov 13, 2023 · In this example, the java -version command returns the current version of Java installed on your system. In this case, it’s Java SE 8 (version 1.8.0_271). This is just a basic way to understand Java versions, but there’s much more to learn about the history, key features, and how to switch between different Java versions.
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Sep 23, 2024 · Java’s versions can be a little confusing for users, so here is a simple rundown to explain each version and update. Initially, Java versions were numbered as 1.x (like Java 1.5), but from Java 5 onwards, the naming convention was simplified to just the major version number (e.g., Java 8 instead of Java 1.8). The terms JDK (Java Development ...
