1.5.8 executable won't run on Ubuntu 14.04 LS

need some help! I'm trying to get IDE 1.5.8 to run on Ubuntu 14.04 LTS. Downloaded the correct build, have OpenJDK installed, and have the IDE folder located in Home. when I double click on the executable, it either opens in gedit or when I try to use "run software" it does nothing. What step and I forgetting? Granted, I am still very new to Linux.