private void reset() {
    initFieldDisplayMapAndFieldLengthMap(null);
    adjustFieldLength.set(true);
    paging.init();
    horizontalScroll = 0;
    topScreenView.clearTerminal();
  }
The presentation logic for the top screen.
hbase-hbtop/src/main/java/org/apache/hadoop/hbase/hbtop/screen/top/TopScreenPresenter.java