Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / pankajkolte
Virtual Destructor is used basically to ensure proper the
sequence of call to destructor.
class Employee {
virtual ~Employee() {}
};
class Manager : public Employee {
~Manager() {}
}
Employee * m = new Manager();//here was the mistake
delete m; // <-
In this case base class destructor if marked as virtual so
as derived class destructor will get called first then base
class destructor.
| Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
Why is oop useful?
What is the types of inheritance?
What is a superclass in oop?
What is this pointer in oop?
What is meant by multiple inheritance?
What is abstraction and encapsulation?
How do you use inheritance in unity?
What are the 3 principles of oop?
What are the three parts of a simple empty class?
This program numbers the lines found in a text file. Write a program that reads text from a file and outputs each line preceded by a line number. Print the line number right-adjusted in a field of 3 spaces. Follow the line number with a colon, then one space, then the text of the line. You should get a character at a time and write code to ignore leading blanks on each line. You may assume that the lines are short enough to fit within a line on the screen. Otherwise, allow default printer or screen output behavior if the line is too long (i.e., wrap or truncate). A somewhat harder version determines the number of spaces needed in the field for the line numbers by counting lines before processing the lines of the file. This version of the program should insert a new line after the last complete word that will fit within a 72-character line.
Which language is pure oop?
What is the difference between encapsulation and polymorphism?
What exactly is polymorphism?
What is data binding in oops?
Give an example where we have to specifically use C programming language and C++ programming language cannot be used?
