Syntax error How to display Java Runtime Environment (JRE) version

How to display Java Runtime Environment (JRE) version

Use the System.getProperty() method in Java to get the Java Runtime Environment.

It’s syntax is −

String getProperty(String key)

Above, the key is the name of the system property. Since, we want the Java Runtime Environment name, therefore we will add the key as −

java.version

The following is an example −

Example

 Live Demo

public class Demo {
   public static void main(String[] args) {
      System.out.print("Java Specification Version: ");
      System.out.println(System.getProperty("java.specification.version"));
      System.out.print("java Runtime Environment (JRE) version: ");
      System.out.println(System.getProperty("java.version"));
   }
}

Output

Java Specification Version: 1.8
java Runtime Environment (JRE) version: 1.8.0_141
Updated on: 2019-07-30T22:30:24+05:30

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