ALL IN C++

ANSWER QUESTION 4,5,6

Assume there is a stock class and a stockNode class. The stock class supports streaming operator , equal operator, and less than operator <. the stocknode class is inherited from stock further assume there are classes for storing collection of stocks as follows: dbarray.. stores in a dynamic array dbdlink.. doubly-linked list dbhash.. hash table dbheap.. heap each db has add delete find functions. following questions do not include these three functions your answer reduced if you but all other required minimum and data members don write stocknode.h to support dbarray.h where size specified during construction time dbarray dbdlink.h dbdlink dbhash.h what need by dbhash dbheap.h store dbheap remove_nth nth node function dbdlink. watch boundary conditions void dbdlink::remove_nth n>