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To check the Java Runtime Environment (JRE) version installed on your system, you can use the command line.
Using Command Prompt or Terminal
Open your command prompt (Windows) or terminal (Mac/Linux) and type the following command:
java -versionThis command will display the installed JRE version along with other details1.
Example Output
java version "1.8.0_281"Java(TM) SE Runtime Environment (build 1.8.0_281-b09)Java HotSpot(TM) 64-Bit Server VM (build 25.281-b09, mixed mode)Using Java Code
You can also check the JRE version programmatically using Java code:
public class CheckJREVersion {public static void main(String[] args) {System.out.println("Java Version: " + System.getProperty("java.version"));System.out.println("Java Vendor: " + System.getProperty("java.vendor"));}}This code will print the Java version and vendor details1.
Important Considerations
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