How do I launch IntelliJ?
Find IntelliJ IDEA in the Windows Start menu or use the desktop shortcut to launch it. The launcher batch script or executable can also be found in the installation path under bin.
In Mac , the installation file available under Application folder /Applications/IntelliJ IDEA CE.app .So you can simply type IntelliJ in finder , it shows this IntelliJ IDEA CE.app as a result and click that to open.