13th Dec 2017, 10:51 AM
Kevin Wijaya
Kevin Wijaya - avatar
2 Answers
0
Rename your class, hashSet is already existed class within your .jar file.
13th Dec 2017, 11:02 AM
Dima Makieiev
Dima Makieiev - avatar
0
Just a small problem, it's fatal Thanks for your answer

13th Dec 2017, 1:19 PM
Kevin Wijaya
Kevin Wijaya - avatar