public void clear() {ArrayList <HSSFShape> copy = new ArrayList<>(_shapes);for (HSSFShape shape: copy){removeShape(shape);}}

public void clear ( ) { ArrayList < HSSFShape > copy = new ArrayList < > ( _shapes ) ; for ( HSSFShape shape : copy ) { removeShape ( shape ) ; } }
public void Clear(){List<HSSFShape> copy = new List<HSSFShape>(_shapes);foreach (HSSFShape shape in copy){RemoveShape(shape);}}
