Java Runtime Environment 64-bit: Installation and Usage

The Java Runtime Environment (JRE) is an essential component for running Java-based applications. In this article, we will discuss how to install OpenJDK JRE 64-bit on Ubuntu and its usage.

Checking OpenJDK JRE Version

To verify if the OpenJDK JRE was installed correctly, you can run the command `java -version`. This will display the version of OpenJDK JRE that is currently installed. In my case, the output shows `openjdk version '11.0.11'`.

Installing OpenJDK JRE

To install the OpenJDK JRE on Ubuntu, you can use the following command: `sudo apt install default-jre`. This will download and install the latest version of the OpenJDK JRE available in the Long Term Support (LTS) branch.

Alternatively, you can opt to use a specific Java version by installing packages like `openjdk-11-jre`, which allows you to stick with a particular version of the Java Virtual Machine and its updates.

Choosing the Right Java Version

The default-jre package is an excellent choice for most situations due to the outstanding track record of backwards compatibility in the Java Virtual Machine. Ubuntu regularly updates this package to ship the latest version of the current OpenJDK JRE in LTS, ensuring that you have access to the latest features and bug fixes.

While non-LTS versions of Java bring innovation and adoption, Java 11 is currently the Long Term Support (LTS) version, while Java 8 is still widely used. With new versions released every six months, there are multiple versions available for use.

In conclusion, installing OpenJDK JRE 64-bit on Ubuntu is a straightforward process, and with the default-jre package, you can ensure that your system has access to the latest version of the Java Virtual Machine.

Java runtime environment 64 bit