数组,List,Set相互转化

数组,List,Set相互转化
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大家好,我是架构君,一个会写代码吟诗的架构师。今天说一说数组,List,Set相互转化,希望能够帮助大家进步!!!

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);

本文来源huayang183,由架构君转载发布,观点不代表Java架构师必看的立场,转载请标明来源出处:https://javajgs.com/archives/17916

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