java7-jdk software package provides virtual package provided by openjdk-7-jdk, you can install in your Debian 7 (Wheezy) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install java7-jdk
java7-jdk is installed in your system.
Make ensure the java7-jdk package were installed using the commands given below,
$ sudo dpkg-query -l | grep java7-jdk*
You will get with java7-jdk package name, version, architecture and description in a table
| Distro | Debian 7 wheezy |
| Section | Virtual packages |
| Package | java7-jdk |
| Version | |
| Description | virtual package provided by openjdk-7-jdk |
| Sub Section | virtual |