question: public void line ( double x , double y ) { Line line = new Line ( x , y ) ; if ( x < minX ) { minX = x ; } if ( y < minY ) { minY = y ; } if ( x > maxX ) { maxX = x ; } if ( y > maxY ) { maxY = y ; } elements . add ( line ) ; }
target:  Draw a line in the current line style (if any)