I am working on task tray Icon in java, I like to open a popup Menu using left click same popup Menu as I open on right click, and please help me with a quick response.
I think you are looking for a MouseListener which you will add to your TrayIcon and will activate when a button on the mouse is clicked,moved etc. To get it to operate for left clicks only have a look at the ButtonMasks on MouseEvent (BUTTON1) being for left mouse clicks.