Set<String> setWithoutDuplicates = new HashSet<>(listWithDuplicates); //打印去重后的Set (setWithoutDuplicates);//输出: [apple, banana, orange] } } ``` 注意,将List转换为Set会丢失元素的原始顺序。如果你需要保持元素的原始顺序,你可以使用`LinkedHashSet`替代`HashSet`。另外,如果你需要保留重复的元...
NewWithIntComparator() // empty (keys are of type int) set.Add(1) // 1 set.Add(2, 2, 3, 4, 5) // 1, 2, 3, 4, 5 (in order, duplicates ignored) set.Remove(4) // 1, 2, 3, 5 (in order) set.Remove(2, 3) // 1, 5 (in order) set.Contains(1) // true set....
NewWithIntComparator() // empty (keys are of type int) set.Add(1) // 1 set.Add(2, 2, 3, 4, 5) // 1, 2, 3, 4, 5 (in order, duplicates ignored) set.Remove(4) // 1, 2, 3, 5 (in order) set.Remove(2, 3) // 1, 5 (in order) set.Contains(1) // true set....
IllegalArgumentException- if the elements are duplicates NullPointerException- if an element isnull Since: 9 of static <E>Set<E> of(E e1, E e2, E e3) Returns an unmodifiable set containing three elements. SeeUnmodifiable Setsfor details. ...
// set_count.cpp // compile with: /EHsc #include <set> #include <iostream> int main() { using namespace std; set<int> s1; set<int>::size_type i; s1.insert(1); s1.insert(1); // Keys must be unique in set, so duplicates are ignored i = s1.count(1); cout << "The numb...
Duplicates the element at the top of the stack.POP top stack element展开表 POP[ ] Code Range 0x21 Pops e: stack element (uint32) Pushes -Pops the top element of the stack.CLEAR the entire stack展开表 CLEAR[ ] Code Range 0x22 Pops all the items on the stack (uint32s) Pushes...
Set-PSReadLineOption can set multiple options with a hash table.PowerShell Copy $PSReadLineOptions = @{ EditMode = "Emacs" HistoryNoDuplicates = $true HistorySearchCursorMovesToEnd = $true Colors = @{ "Command" = "#8181f7" } } Set-PSReadLineOption @PSReadLineOptions...
// set_count.cpp // compile with: /EHsc #include <set> #include <iostream> int main() { using namespace std; set<int> s1; set<int>::size_type i; s1.insert(1); s1.insert(1); // Keys must be unique in set, so duplicates are ignored i = s1.count(1); cout << "The numb...
Duplicates the element at the top of the stack.POP top stack element展开表 POP[ ] Code Range 0x21 Pops e: stack element (uint32) Pushes -Pops the top element of the stack.CLEAR the entire stack展开表 CLEAR[ ] Code Range 0x22 Pops all the items on the stack (uint32s) Pushes...
The following example uses the various SET NEWNAME commands, sets the DBID and duplicates the database to NEWDB: Copy SET DATABASE PROD SET DBID 22398754 SET INCARNATION 451 RUN { SET NEWNAME FOR TABLESPACE system TO '/test/oradata/system/%d_%f'; SET NEWNAME FOR TABLESPACE users to '...