If you are given a base class with a pure virtual function, what happens if an o

Question

If you are given a base class with a pure virtual function, what happens if an object of the base class is declared. What happens if an object of a derived class is declared? State an example of a statement opening a file for sequential access Describe the structure of a random access file and the structure of a sequential access file BE SPECIFIC. In a sequential-access file, what is the default position to begin reading or writing the beginning the end. There is no default. It depends on the type of data THIS LINKED LIST BELOW HAS 2 NODES WRITE THE STATEMENTS TO INSERT A THIRD NODE AFTER THE SECOND NODE. CALL THE NEW NODE third, AND ASSIGN VALUE 13.0. Put your answer at the right below this line. struct ListNode double value ListNode *next}; int main() {ListNode *head; head = new ListNode head rightarrow value = 12.5; head rightarrow next = NULL; ListNode * secondPtr = new ListNode;

Explanation / Answer

26.B. Derived class object can be used to access members of its base class which are not private.

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27.step 1: create object for ofstream

ofstream fobj;

fobj.open("cppfile.txt","file _open _mode"):

file open modes are :

in -Allow input operation on stream

out --Allow output operation on stream

trunc--current contets of file are discarded and opens as its length is zero on opening

binary--considers stream as binary rather than text

ate--sets stream position at end of the stream

app-opens file in append mode

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29. option A - default reading position is at the beginning

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