inheritanCe is a Perl script that provides an interactive shell interface for browsing the class inheritance tree for a project. It uses the output of 'ctags' and thus supports the same languages, including C++ and Java.
Open source project that offer summary and download services on this page is a project that carry out their development work on other open source development sites. Their work is linked to this page via a feature called OFI, and their work is not carried out here on OSDN site.