java 8 stream collectors groupingby example

کوتاه

20:30

7:42

17:55

7:39

7:11

کوتاه

15:01

7:12

16:36

26:51

17:14

25:03

31:59

21:43

43:15

3:55

3:55

3:37

3:54

3:32

6:00

4:45

5:16

10:00

10:00

4:04

2:14

13:38

5:04

9:00

8:53

12:32

10:21

3:33

3:46

3:45

2:23

1:10:41

9:33