question: private void drawSpot ( Graphics g , int c , int r , char m ) { if ( m == TicTacToeBoard . EMPTY ) { g . setColor ( Color . lightGray ) ; g . fillRect ( 30 + CELLSIZE * c , 30 + CELLSIZE * r , 40 , 40 ) ; return ; } g . setColor ( Color . black ) ; g . drawString ( "" + m , 40 + CELLSIZE * c , 60 + CELLSIZE * r ) ; }
target:  Draw marker for player in specific location.