How to update java in linux

How to upgrade Java on Ubuntu?

I installed Ubuntu on my computer, and now my Java version is not updated. I have Java, so I don’t need to install — just update the current version. Can someone please tell me the command I have to use to get the current version? I have tried: apt-get update and apt-get upgrade .

7 Answers 7

Note: WebUpd8 team’s PPA has been discontinued with effective from April 16, 2019. Thus this PPA doesn’t have any Java files. More information can be found on PPA’s page on Launchpad. Hence this method no longer works and exists because of historical reasons.

sudo add-apt-repository ppa:webupd8team/java sudo apt-get update sudo apt-get install oracle-java7-installer 

sudo apt-get install oracle-java8-installer 

If you ABSOLUTELY need to have the latest update of java you must manualy install from official source, follow this tuto : http://www.cyberciti.biz/faq/howto-installing-oracle-java7-on-ubuntu-linux/

But I advise you to wait as ppa update

I tried this one but it will not install the newest version. I have checked it out on java-website. I have now version 7 update 65 and I want version 7 update 67.

root@ubuntu:/home/kenneth# sudo apt-get install oracle-java7-installer Reading package lists. Done Building dependency tree Reading state information. Done oracle-java7-installer is already the newest version. 0 to upgrade, 0 to newly install, 0 to remove and 0 not to upgrade.

Found something useful here..

Installing Java with apt-get is easy. First, update the package index:

Check if Java is not already installed:

 sudo apt-get install default-jre sudo apt-get install default-jdk 

This worked great for me in March 2016. my system is always fairly up-to-date so just the last two commands (the install s) did it for up

Note: WebUpd8 team’s PPA has been discontinued with effective from April 16, 2019. Thus this PPA doesn’t have any Java files. More information can be found on PPA’s page on Launchpad. Hence this method no longer works and exists because of historical reasons.

The newest OpenJDK Java packaged for trusty (14.04) right now is 7u55. You can check your Java version with java -version from the command line in Terminal.

If you want a newer one your best options will be to:

• wait for an update from Ubuntu, OR
• install the Oracle distribution of Java which currently is at 7u65:

sudo add-apt-repository ppa:webupd8team/java sudo apt-get update sudo apt-get install oracle-java7-installer 

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How to Check and Update Java Version on Ubuntu 22.04?

Java is a general-purpose client-side programming language that serves several functionalities like android application development, game development, web applications development, and many other software products. To build any application, first, we have to install Java on our computer systems. However, some applications are not capable to run on java’s outdated version. So, it’s essential to know which Java version is installed on our operating system and if our machine is running an outdated version of java, then how to update it.

This post will explain how to check and upgrade the Java version on Ubuntu 22.04. So, let’s begin!

How to check Java version on Ubuntu 22.04

Open the terminal on your ubuntu 22.04 operating system and type the below-mentioned command to check which Java version is installed on your machine:

Once you typed the above-given command on the terminal, it will produce the following outcome:

The above snippet shows that Java is not installed on our machine. Now, let’s move one step further to learn how to install/upgrade the Java version on Ubuntu 22.04.

How to Update Java version on Ubuntu 22.04

To update the java version or to install the latest java version, firstly you have to upgrade the apt repository. To do so, type the below-given command on the terminal:

Next, run the below-enlisted command to install the default Java Runtime Environment(JRE) on your operating system:

When you execute the above-given command, it will work like this:

Type “Y” to continue the installation process:

The whole installation process will take a few minutes to install JRE on your system. You can verify the JRE’s installation by typing the following command:

If JRE is successfully installed on your Ubuntu 22.04, then you will witness the result something like this:

Congratulations! You have successfully installed the latest and updated version of Java on Ubuntu 22.04.

As the JRE’s installation is done, now you can run almost every java software on your machine. However, some java-oriented software may require the Java Development Kit(JDK) to compile/run some particular tasks. In such cases, you can install the JDK by typing the below-given command:

The above-given command will work something like this:

Type “Y” to continue the JDK’s installation process:

Type the below-given command on the terminal of ubuntu 22.04 to verify whether the updated JDK is installed on your machine or not:

You will witness the below-given output:

Congrats! You are running an updated Java version on your ubuntu 22.04.

Conclusion

Open the terminal and type “sudo apt install default-jre” to install JRE, and type “sudo apt install default-jdk” to install JDK on ubuntu 22.04. To check or verify the java version type “java -version” on the terminal of Ubuntu 22.04. This write-up provided a step-by-step guide on how to check, update, and verify the java version on ubuntu 22.04.

About the author

Anees Asghar

I am a self-motivated IT professional having more than one year of industry experience in technical writing. I am passionate about writing on the topics related to web development.

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How to update Java in Linux and Windows?

Java — a powerful tool for building applications, ranging from appliances and simple solutions to huge software systems. Large widely received among the free developers due to the fact that is used to create applications for the platform «Android». The program is constantly being improved and modernizarea. It added new features and capabilities. How to update Java, will be discussed in this article. It will also consider alternative operating systems.

How to update Java on your computer in Windows

In Windows OS, when you install Java once installed a special utility for monitoring the current version and to control the presence on the server is newer. Unobtrusively checks to see whether at the moment the update and if so prompts the user to do it.

If this does not happen, you will need to configure the system check for updates. For this we need to get into the configuration menu Java. For all versions of Windows you need to go through the menu “start” in the search. In the line is sufficient to introduce “the Java control Panel” and press Enter.

Otroetsya Java Control Panel. There are a number of tabs, we want to Update. Here you can remove or install a tick on the “Check for updates automatically». You can also specify when you need to notice — to install or to download the package. The bottom panel has a button for immediate update.

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Usually, before updating Java, the system displays a message indicating that a new packet is ready to be installed.

How to update Java in Linux

Here we must digress and tell you about how to set Java on some Linux distributions. For example, in one of the most popular, Ubuntu, already have the regular version «box». But she’s not from Oracle, the program is called OpenJDK. It is also available in the standard repository and to update the user intervention is not required.

In Oracle Java among apps for Ubuntu is not, so to put it from third-party repositories or manually. In the first case, the system will prompt you to upgrade, in the second, you may have to uninstall the old version and then install the new one.

Before you update your version of Java, go to Oracle official website to download the latest version. Please note that the archives for Linux have the extension tar.gz. Need to download the JRE version and the JDK.

Downloaded files should be placed at the location of the Java (generally it’s /usr/local/java) and extract to the specified folder.

Now we have to edit environment variables. This command can be typed in the terminal: sudo gedit /etc/environment.

Displays the file with the current folder paths with Java. You need to change them to the ones that came out after unpacking the downloaded archives. Review the environment variables have not changed. If so, add the required data.

Some advice

To avoid further manipulation before updating Java, it is recommended to install it from third-party repositories. You can find them on the sites of official support for a particular distribution. In the future, the system will check for updates automatically I walk around in all repositories, including the system.

Conclusion

In the article it talked about how to update Java on a computer running Windows and Linux. In both environments there are options to do it automatically, relying on a system manually, i.e. independently.

When you manually update, particular attention should be paid to the type of files being downloaded. There are separate files for the virtual machines and individual files for a development environment. In addition, there are versions for 32 — and 64-bit systems.

Experts recommend to perform these steps automatically. This will allow you to avoid missing important security updates and to be informed of all past changes.

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