陣列，List，Set相互轉化
阿新 • • 發佈：2019-01-04
轉載：https://blog.csdn.net/my_precious/article/details/53010232
1.陣列轉化為List：
String[] strArray= new String[]{"Tom", "Bob", "Jane"};
List strList= Arrays.asList(strArray);
2.陣列轉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轉Set
String[] staffs = new String[]{"Tom", "Bob", "Jane"};
List staffsList = Arrays.asList(staffs);
Set result = new HashSet(staffsList);
4.set轉List
String[] staffs = new String[]{"Tom", "Bob", "Jane"};
Set<String> staffsSet = new HashSet<>(Arrays.asList(staffs));
List<String> result = new ArrayList<>(staffsSet);