You can use toCollection
and provide the concrete instance of the set you want. For example if you want to keep insertion order:
Set<MyClass> set = myStream.collect(Collectors.toCollection(LinkedHashSet::new));
For example:
public class Test {
public static final void main(String[] args) {
List<String> list = Arrays.asList("b", "c", "a");
Set<String> linkedSet =
list.stream().collect(Collectors.toCollection(LinkedHashSet::new));
Set<String> collectorToSet =
list.stream().collect(Collectors.toSet());
System.out.println(linkedSet); //[b, c, a]
System.out.println(collectorToSet); //[a, b, c]
}
}
与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…