1 list轉陣列

// list轉陣列
List<String> strList = new ArrayList<String>();
strList.add("aaa");
strList.add("bbb");
strList.add("ccc");
String[] strArray = strList.toArray(new String[strList.size()]);        System.out.println(Arrays.toString(strArray));

// 陣列轉list
List<String> strList = Arrays.asList("111","222","333");
System.out.println(strList);

String[] strArray = {"111","222","333"};
List<String> sList = new ArrayList<String>();
Collections.addAll(sList, strArray);
System.out.println(sList);