String[] arrags = {"hello", "world", "java", "zhiyin"}; //数组转换为集合 List<String> list = new ArrayList<>(Arrays.asList(arrags)); for (String s : list) { } System.out.println(); //集合变为数组 String[] array = list.toArray(new String[list.size()]);
数组和集合之间的相互转化
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