Java 数组与集合 转换

数组转为集合

String[] nameList = new String["张三", "李四"];

List<String> list = Arrays.asList(nameList);

 

集合转为数组

List<String> list = new ArrayList<>();

list.add("张三");

list.add("李四");

 

String stringArray = new String[list.size()];

list.toArray(stringArray);