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Programming Languages > Learn Programming Languages > what we can access private data of any class without...
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what we can access private data of any class without using member function

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There are two ways to access it. 1) Friend functions can access the private data of the class. 2) Typecast the object address to a pointer and then access the individual variables through memory access. Below example explains this in detail. class Test { private: int a; ...
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There are two ways to access it. 1) Friend functions can access the private data of the class. 2) Typecast the object address to a pointer and then access the individual variables through memory access. Below example explains this in detail. class Test { private: int a; char b; }; void somefunc () { Test obj; int *x; char *y; // x points to member variable 'a' after below call. x = (int *) &obj; // y points to member variable 'b' after below call. y = (char *)(x + 1); *x = 3; *y = '='; } This method is however not recommended. The ideal method is to use public member functions for all operations on class object. read less
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Yes, it is possible using pointers.
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Trainer

Assessing the Private Member without Member Function or Friend Function is possible in C++. But it is little tricky. This is not known to many of the programmers. But such private member accessing needs some tweeks in the class.
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IT Professional Trainer working with a reputed Institute. Headquarters: Hyderabad

In C++ there is a function called friend function, which allow us to access the private data of the class, A friend function of a class is defined outside that class' scope but it has the right to access all private and protected members of the class.
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Excel VBA Expert

we can not
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IT Professional Trainer with 15 years of experience in IT Industry

Actually not possible to access private variables in other classes without using public member function. But you have to find it then you can be share with us..
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if u want to share your private data to the person who is not ur family member,you can do it by making him/her ur friend.don't do it always.
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Assitant professor with 6 years of teaching experience.

It is not possible to access private members of a class without its own member function. That is the main reason why it is set as private so that members of other class should not be able to directly access private member of the class.
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Software Professional Trainer with 26+ years of Experience in Software Design and Development

Using friend function you can access the private data of a class through object. The other way is you can get the address of the object. From this address, you can traverse the variable based on the size and get the value of the variable. But this will void the OOPs concept. Example Class Student...
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Using friend function you can access the private data of a class through object. The other way is you can get the address of the object. From this address, you can traverse the variable based on the size and get the value of the variable. But this will void the OOPs concept. Example Class Student { private: char charstudentname[20]; int studentid; public: void SetStudentData() { strcpy(studentname,"Ram"); studentid = 123; } }; void main() { Student student; int *ptr; // to get access private member studentid directly here, use the following statement ptr = &student; ptr = ptr + 20; // id is available after 20 bytes(20 characters of student name) cout << *ptr; // will display the student id 123 } read less
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Trainer

Private data can be accessed in only members functions. Even if you create a object you cannot access the private data.
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