Just remember in the future, the helping is ancillary, it's the resultant content catalog that is the real goal of all the SE network.
Add a comment. Active Oldest Votes. Managed to get answer after do some google.. Improve this answer. Since the author didn't opt to share any of that google research, here's a page from the webupd8team, describing this above process for installing this repo.
I tried this just now and it works! On Debian it is better to use java-package to build your own package from official Oracle Java binaries instead of installing untrusted binary packages from untrusted repositories.
Besides Oracle's Java is not re- distributable Show 9 more comments. The Overflow Blog. Stack Gives Back Safety in numbers: crowdsourcing data on nefarious IP addresses. Featured on Meta. You can install it using the following command:. Once the installation is complete, you can verify your Java version:.
At this point, you have Oracle JDK 8 installed, but you may want to also install one or more of the versions below. Oracle JDK 9 is currently available for early access through its developer preview. The general release is scheduled for summer There is more information about Java 9 on the official JDK 9 website. While it may be worth investigating Oracle JDK 9, there may still be security issues and bugs, so you should opt for Oracle JDK 8 as your default version.
There can be multiple Java installations on one server. You can configure which version is the default for use in the command line by using update-alternatives , which manages which symbolic links are used for different commands. The output will look something like the following. In this case, all Java versions mentioned above were installed. If we press the enter key in this case, Java 9 will be kept as the default. We can, for example, press 3 for Java 8 and receive the following output:.
Now Java 8 would be the default. Choose the default Java version that works best for your projects. The update-alternatives command can also be used for other Java commands, such as the compiler javac , the documentation generator javadoc , the JAR signing tool jarsigner , and more.
You can use the following command, filling in the command you want to customize. On your local computer, use scp to upload the file to your server. Adjust the file paths as needed for your systems:. First, install the software-properties-common package, which adds the add-apt-repository command to your system:. Then we use the add-apt-repository command to add the repo to our list of package sources:.
This can be ignored. First, we need to create a specific directory that the installer uses to find the Java software package, then copy the.
The installer will first ask you to accept the Oracle license agreement. Accept the agreement, then the installer will extract the Java package and install it. You can have multiple Java installations on one server. You can configure which version is the default for use on the command line by using the update-alternatives command. Choose the number associated with the Java version to use it as the default, or press ENTER to leave the current settings in place.
Other commands for which this command can be run include, but are not limited to: keytool , javadoc , and jarsigner. To set this environment variable, first determine where Java is installed. Use the update-alternatives command again:. This file may be blank initially. At the end of the file, add the following line, making sure to replace the highlighted path with your own copied path:. In this tutorial you installed multiple versions of Java and learned how to manage them.
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