public void writeInformation(Description d, int categoryID, HUD UI) {
    if (categoryID == 0) describeCondition(d, UI) ;
    if (categoryID == 1) describePersonnel(d, UI) ;
    if (categoryID == 2) describeStocks(d, UI) ;
    if (categoryID == 3) describeUpgrades(d, UI) ;
  }