question: public JRangeSlider ( BoundedRangeModel model , int orientation , int direction ) { super . setFocusable ( true ) ; this . model = model ; this . orientation = orientation ; this . direction = direction ; setForeground ( Color . LIGHT_GRAY ) ; this . lstnr = createListener ( ) ; model . addChangeListener ( lstnr ) ; addMouseListener ( this ) ; addMouseMotionListener ( this ) ; addKeyListener ( this ) ; }
target:  Create a new range slider. 