I want to make menu on left side of frame, buttons'd be text...when clicked they'd open submenu and after that new jframe/panel...Hope you know what I want...
I read lots of examples but they wasn't what I wanted..most of them was on upper side..opening while clicked(I want it to be there opened all time while program is running)...
Well, of course your "menu" can't be a JMenu because that automatically goes at the top of the frame with dropdowns and so on, and you said you didn't want that.
But you can still create a JPanel whose layout manager splits it into two parts vertically. In the left part is where you want your menu buttons, correct? So in the left pane you would use a layout manager which arranged your menu buttons in a vertical list. Although you mentioned "submenus", so maybe you should have a JTree there with your menu options.
At any rate you should go through the Swing tutorial, especially the parts which cover the common layout managers, so you have a better idea of what things are possible.