Solve this issue?

Question

In this code I wanted name of a person and his age in hash table, with length of name as key. Here I wanted to
chain the names when their lengths are same. The issue is I think chaining is not happening, when I remove the first comment in the code, it is giving compile time error. Let me know what wrong I have done.

Is this a right way to demonstrate the Hash table data structure?
https://code.sololearn.com/cST2w3cZ5P13/?ref=app

Answer 1

Thank you Sucheta , when mistakes are solved immediately, then they start eating out, Thanks for answering

Answer 2

Please anyone answer it, if you know it?

Answer 3

Yeah, lol it is runtime exception,