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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