Trying to Install OpenJDK Package 'openjdk-7-jre' has no installation candidate [duplicate]

I have just Updated to the new Ubuntu 16.04. This is a fresh installation of this OS. Trying to install Openjdk 7 but I got this error.

Package 'openjdk-7-jre' has no installation candidate

how do I fix it?

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2 Answers

if you really want to install JDK7, add these in your /etc/apt/sources.list file,

deb trusty main restricted universe multiverse
deb trusty-security main restricted universe multiverse
deb trusty-updates main restricted universe multiverse
deb trusty-proposed main restricted universe multiverse
deb trusty-backports main restricted universe multiverse

by issuing a following command,

sudoedit /etc/apt/sources.list

then run,

sudo apt-get update

run apt-cache search openjdk-7-jre to verify.

1. Go to the download page
2. Download the rpm
3. alien it

alien jdk-7u80-linux-x64.rpm

4. install it

dpkg -i jdk_1.7.080-1_amd64.deb

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