tar.gz file which is currently named jdk-7u80-linux-圆4.tar.gz (for 64-bit architecture) or (for 32-bit architecture) and follow the installation instructions at this answer. Java 7 is also available at the Java SE 7 Archive Downloads webpage of the official Oracle website. To install openjdk-7-jdk in Ubuntu 14.04 run: sudo apt-get install openjdk-7-jdk I recommend that you keep the Ubuntu 14.04 VirtualBox guest OS files for as long as you need to use Java 7 and also make backups of these files. Although you don't have Ubuntu 14.04 currently installed, you can keep using the Ubuntu version that you have and install Ubuntu 14.04 as a guest OS in VirtualBox. The openjdk-7-jdk package is available in Ubuntu 14.04. Or if you can tell me how to install jdk-7u80-linux-圆4.tar.gz or jdk-7u80-linux-圆4.rpm. I don't even know how to select the the java installer 7u80. You should explicitly select one to install.Į: Package 'openjdk-7-jdk' has no installation candidate Package openjdk-7-jdk is a virtual package provided by: When I try to use: sudo apt-get install openjdk-7-jdk I am a new Ubuntu user, so be very specific. I also want to switch between Java 7 and 8 to update a project I am working on. I already installed Java 8, but I don't know how to install Java 7 and how to switch between the two Java versions.
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