Interested to Buy Any Domain ? << Click Here >> for more details...
What is the handle class?
- 1 Answers
- 1642 Views
- I also Faced
- E-Mail Answers
Answer / beena
A handle is a class that maintains a pointer to an object that is programmatically accessible through the public interface of the handle class.
Explanation:
In case of abstract classes, unless one manipulates the objects of these classes through pointers and references, the benefits of the virtual functions are lost. User code may become dependent on details of implementation classes because an abstract type cannot be allocated statistically or on the stack without its size being known. Using pointers or references implies that the burden of memory management falls on the user. Another limitation of abstract class object is of fixed size. Classes however are used to represent concepts that require varying amounts of storage to implement them.
A popular technique for dealing with these issues is to separate what is used as a single object in two parts: a handle providing the user interface and a representation holding all or most of the object's state. The connection between the handle and the representation is typically a pointer in the handle. Often, handles have a bit more data than the simple representation pointer, but not much more. Hence the layout of the handle is typically stable, even when the representation changes and also that handles are small enough to move around relatively freely so that the user needn’t use the pointers and the references.
| Is This Answer Correct ? | 0 Yes | 0 No |
Assume studentNames and studentIDs are two parallel arrays of size N that hold student data. Write a pseudocode algorithm that sorts studentIDs array in ascending ID number order such that the two arrays remain parallel.
What are built-in functions? What is the syntax for the definition?
What apps are written in c++?
What jobs can you get with a c++ certification?
What are access specifiers in C++?
How do you save a c++ program?
What is microsoft c++ redistributable?
Tell me difference between constant pointer and pointer to a constant.
Why is swift so fast?
What is the operator in c++?
what are the iterator and generic algorithms.
Which compiler does turbo c++ use?
STL 
