java awt layout manag layout contain java awt contain layout contain contain parent parent tree lock section parent inset left arrai list compon compon arrai list compon section count section count parent section width section width parent section count section parent compon count compon child comp parent compon child comp seper ignor splitter layout section parent section section width compon section section section width hgap compon clear compon add parent compon layout section parent section section width compon section 