The system of barter was superseded by the use of money. 以物易物的制度被金钱的使用取代了。
Once a year, the scattered Jawa clans gather for the great swap meet.Here, numerous sandcrawlers converge and the Jawas meet to exchange salvage. 散居的贾哇人一年会有一次盛大的以物易物交换集会，会有许多的沙爬者聚集在此，而贾哇人相聚以交换废物料。
