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List<String> list = new ArrayList<String>(); list.add("Hello"); list.add("World"); list.add("World"); Set<String> set = new HashSet<String>(); set.addAll(list); Iterator<String> ite = set.iterator(); while(ite.hasNext()) { System.out.println(ite.next()); }
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原文地址:http://www.cnblogs.com/liangyonglu/p/5546795.html