FilesExpand file tree

 main

/

DemoCollectionSet.java

Copy path

Blame

More file actions

Blame

More file actions

Latest commit

 

History

History

History

43 lines (35 loc) · 1.18 KB

 main

/

DemoCollectionSet.java

Copy path

Top

File metadata and controls

• Code
• Blame

43 lines (35 loc) · 1.18 KB

Raw

Copy raw file

Download raw file

Open symbols panel

Edit and raw actions

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

package DemoCollections;

import java.util.HashSet;

import java.util.Iterator;

import java.util.Set;

public class DemoCollectionSet {

public static void main(String[] args) {

//Khai báo kiểu dữ liệu Set

//không lưu được dữ liệu trùng lặp

Set<String> menu = new HashSet<>();

//Thêm dữ liệu

menu.add("Project");

menu.add("Dashboard");

menu.add("Customer");

menu.add("Tasks");

menu.add("Sales");

menu.add("Project");

System.out.println(menu.contains("Tasks12345"));

menu.remove("Sales");

System.out.println(menu.size());

System.out.println("Các phần tử của Set");

System.out.print("\t" + menu + "\n");

System.out.println("\n=======================");

//Duyệt giá trị trong SET

// Show set through Iterator

Iterator<String> itr = menu.iterator();

while (itr.hasNext()) {

System.out.println(itr.next());

}

System.out.println("\n=======================");

// Show set through for-each

for (String obj : menu) {

System.out.println(obj);

}

}

}