Java-Set专题-set排序
1、Set排序，取最大值，最小值
ImmutableSet<String> learningMonthList = ImmutableSet.of("2012-12","2011-13","2013-11");
TreeSet<String> treeSet = new TreeSet<>(learningMonthList);
System.out.println(treeSet.first());
System.out.println(treeSet.last());
正文到此结束
