对 set 的遍历 1.迭代遍历: Setset = new HashSet (); Iterator it = set.iterator(); while (it.hasNext()) { String str = it.next(); System.out.println(str); } 2.for循环遍历: for (String str : set) { System.out.println(str); } 优点还体现在泛型 假如 set中存放的是Object Set
来源:https://ahomeeye.iteye.com/blog/1235370