数组，List，Set相互转化

转载：https://blog.csdn.net/my_precious/article/details/530102321.数组转化为List：String[] strArray= new String[]{"Tom", "Bob", "Jane"};List strList= Arrays.asList(strArray);2.数组转

程序员不弃

272847人浏览 · 2018-06-03 23:41:29

程序员不弃 · 2018-06-03 23:41:29 发布

转载：https://blog.csdn.net/my_precious/article/details/53010232

1. 数组转化为List：

String[] strArray= new String[]{"Tom", "Bob", "Jane"};

List strList= Arrays.asList(strArray);

2. 数组转Set

String[] strArray= new String[]{"Tom", "Bob", "Jane"};

Set<String> staffsSet = new HashSet<>(Arrays.asList(staffs));

staffsSet.add("Mary"); // ok

staffsSet.remove("Tom"); // ok

3. List转Set

String[] staffs = new String[]{"Tom", "Bob", "Jane"};

List staffsList = Arrays.asList(staffs);

Set result = new HashSet(staffsList);

4. set转List

String[] staffs = new String[]{"Tom", "Bob", "Jane"};

Set<String> staffsSet = new HashSet<>(Arrays.asList(staffs));

List<String> result = new ArrayList<>(staffsSet);