Also i had the intention to create the plugin myself (i am a programmer) ,but i only see the tutorials but no files to download that i can refer to,all the links in the tutorials are dead.Anyone knows where i can find it?
Find, download, install 'IntelliJ IDEA Community edition'
the first video tutorial tells you how to Set up IntelliJ IDEA and download necessary files
other video tutorials show plugin creation/editing examples