Assume that you have a class that has an integer pointer as a private member. One of the member functions will dynamically allocate memory and assign the address to that member. Assume that an object of that class type is instantiated and the funtion called to allocate memory. When the object reaches the end of it's scope - will the memory that has been allocated be released automatically? If not, how would you create a mechanism to accomplish this.

Create a class named Line: (a) Define private data members p1 and p2 as pointer to Point objects (the one we had in lectures), slope and length as double variables. (b) Define setter and getter functions. (c) Define a null-constructor that initializes numeric variables with zero and allocate dynamic memory for points and initialize them to [0,0] as well. (d) Overload a constructor that allocates memory for points, initilize them with given arguments, and calculate the slope and length. (e) Implement destructor, copy constructor and copy assignment operator. (f) Create a function called ”parallel” that takes too Line objects, returns true when given lines are parallel and returns false otherwise. (g) Overload the less than (<) and greater than (>) and equality (==) operators (compare the length). (h) Write a functions that reads lines in the format provided in the lines.txt from the file (without any change) and stores them in a vector named Lines. (i) Sort the objects of Lines…

Define a class named IDProtected Data Member: number - type int pointer (dynamic variable)number has to be 10 digits integer.Appropriate accessor and mutator functions.Default constructor and one argument constructor.Overload the insertion operator << to output ID objects.Overload the extraction operator >> to input ID objects.Add big three to ID class.Please indicate call of big three. Use following main() to test your class.int main(){ ID a(12345678); cout<<a; ID b = a; cin>>a; cout<<a; ID c; c = a; cin>>a; cout<<a; cout<<b; cout<<c;} Output from given main function:ID number: 12345678ID => copy constrcutor is calledEnter id number: 1234ID number: 1234ID => Assignment operator is calledEnter id number: 56789ID number: 56789ID number: 12345678ID number: 1234ID => Destructor is calledID => Destructor is calledID => Destructor is called

140. When a virtual member function is activated, how is the correct version of the function chosen? Group of answer choices The class provides some implementation of a pure virtual function.   The class does not provide any implementation of a pure virtual function. Because there is no implementation, any class with a purevirtual function is called an abstract class and no instances of an abstract class may appear in a program. The pure virtual functions are expected to be overridden in the derived classes.   The class does not provide any implementation of a pure virtual function. Because there is no implementation, any class with a purevirtual function is called an abstract class and no instances of an abstract class may appear in a program. The pure virtual functions are not expected to be overridden in the derived classes.   The class provides implementation of a pure virtual function. Because there is no implementation, any class with a purevirtual function is called an…