Assume that t is an object of class Test, which has member functions a(), b(), c() and d(). If the functions a(), b() and c() all return references to an object of class Test (using the dereferenced this pointer) and function d() returns void, which of the following statements will not produce a syntax error:
A) t.a().b().d();
B) a().b().t;
C) t.d().c();
D) t.a().t.d();

Question

Quizplus · Accepted Answer

CDA) This is a valid statement because a() returns a reference to a Test object, allowing b() to be called on the result, and then d() is called on the result of b(). Since d() returns void, no further method chaining is possible, but the statement is syntactically correct up to this point.B) This statement is incorrect because it attempts to call a() without an object, assuming a() is a non-static member function, and then tries to access t as if it were a member function of the result of b(), which is not syntactically valid.C) This statement will produce a syntax error because d() returns void, so attempting to call c() on the result of d() is not possible.D) This statement is incorrect because it attempts to call t as if it were a method of the object returned by a(), which is not syntactically valid.

Assume That T Is an Object of Class Test, Which