i think i done sorting right but why i got different answer
Are you sorting your code properly ?
You have not sorted your value according to the closing price, can you recheck your logic?
Please see my first screenshot .
I wrote Collections.sort(list) and I wrote compare to function
Yes, but you have not implemented your compare to function properly
Refer to the References given under your taskboard properly.
Hey please refrain from posting any code screenshots here, as far as I can see your issue is resolved right?