(->) arrow operator and (.) dot operator , class pointer

Question

In C++ we know that for a pointer of class we use (->) arrow operator to access the members of that class like here:

#include 
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Answer 1

myclass *ptr;

ptr = new myclass();     // ptr points to a single object
ptr->doSomething();      // calls doSomething on the object _pointed to_

ptr = new myclass[10];   // ptr points to multiple objects
ptr->doSomething();      // calls doSomething on the first object _pointed to_
(ptr+1)->doSomething();  // calls doSomething on the second object _pointed to_

auto val = ptr[2];       // fetches a reference to the second _object_ to val.
val.doSomething();       // calls doSomething on the _object reference_ val.

In other words, when indexing the array to fetch the n'th element, you're not fetching a pointer to the n'th element, you're fetching a reference to the actual object, and the members of that need to be accessed using . syntax.