FB page: / competitiveprogrammingpractice
Java tutorials
Day 18 code of HackerRank solution in java. here is the complete solution using java 8
Using this video you can learn about queue & stack in java. data structure in java.
Here is the blog link from there you can get solution of live competitions from different competitive programming sites
https://trickyprog.blogspot.in/
If you will get any problems in programming you can comment here and I will try to solve your problem as soon as possible.
you can also share your questions on the FB page given above