Well I wouldn't get into stuff like that BUT if you really want to know you can make code to crash computers by over running the CPU. I'm not going to put it in this comment because I don't want you to do it as it can get you into trouble! You can also make a RAT( Remote access tool ), PLEASE DONT DO ANY OF THIS. You can also make programs in java to steal passwords off of chrome Firefox and other browsers and send them over FTP to you. As saying again please don't do any of this as getting into stuff like this is... not the best(that's why i'm not providing code!)
