Debian 9 openjdk-7-jre和openjdk-7-jre-headless

Question

Need to use a program that requires openjdk7. Running Debian 9 Mate.

Get the following when I try to install

$sudo apt-get install openjdk-7-jre openjdk-7-jre-headless

Reading package lists... Done
Building dependency tree       
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 openjdk-7-jre-headless : Depends: tzdata-java but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

Answer 1

The package openjdk-7* is not available for Debian stretch through apt , it is only available for Debian jessie , Sid and experimental .

The correct package version is openjdk-8-jdk and openjdk-8-jre-headless , to install it on debian 9 run:

sudo apt update 
sudo apt install openjdk-8-jdk openjdk-8-jre-headless