Array_List_Set_TreeSet1
Code :
Array_List_Set_TreeSet1.txt
Set :: ArrayList stream
Set<String> set1 = Arrays.asList(str1).stream()
.collect(Collectors.toSet());
List
List< String > list = Arrays.asList(str1);
List TO TreeSet
TreeSet<String> tset1 = new TreeSet<String>(list);
output: