this.vScrollbar = vertical; this.hScrollbar = horizontal;
vScrollbar = vertical; hScrollbar = horizontal;
    public void setScrollbars(Scrollbar vertical, Scrollbar horizontal) {        this.vScrollbar = vertical;        this.hScrollbar = horizontal;        // When the scroll bars are adjusted, update our offset.        this.vScrollbar.addAdjustmentListener(this);        this.hScrollbar.addAdjustmentListener(this);    }