Androidsorting数组

我怎么能按date或名称sorting这个数组?

String[][] datetable= new String[21][2]; datetable[0][0] = "2011.01.01"; datetable[0][1] = "Name1"; datetable[1][0] = "2011.01.03"; datetable[1][1] = "Name2"; . . . datetable[20][0] = "2011.02.16"; datetable[20][1] = "Name3"; 

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