question: public void keyReleased ( KeyEvent e ) { if ( e . isShiftDown ( ) && e . getKeyCode ( ) == NEXT_THROTTLE_KEY ) { requestFocusForNextFrame ( ) ; } else if ( e . isShiftDown ( ) && e . getKeyCode ( ) == PREV_THROTTLE_KEY ) { requestFocusForPreviousFrame ( ) ; } }
target:  Description of the Method