Not everytime we will find programs .deb, so if it happened to you and they have .rpm you can convert it to .deb.
It is easy and it works.
Install Alien ( The program that will convert to deb)
$ sudo apt-get install alien
Convert to .deb file:
$ sudo alien --scripts program_name.rpm
Install .deb file:
$ sudo dpkg -i <.deb file generated>