Consider the following line of code: house nicosia; house famagusta(nicosia); house larnaca; larnaca=nicosia; Which of the following are valid? I. famagusta is initialized using the copy constructor II. famagusta and larnaca are initialized using the user-defined kopy constructors III. famagusta and larnaca are initialized using the assignment operator IV. larnaca is initialized using the assignment operator v. larnaca is initialized using the user-defined copy constructor

Consider the following line of code: house nicosia; house famagusta(nicosia); house larnaca; larnaca=nicosia; Which of the following are valid? I. famagusta is initialized using the copy constructor II. famagusta and larnaca are initialized using the user-defined kopy constructors III. famagusta and larnaca are initialized using the assignment operator IV. larnaca is initialized using the assignment operator v. larnaca is initialized using the user-defined copy constructor

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

See similar textbooks

Similar questions

demonstrates the entire anagram.cpp application. Assign the phrase to be anagrammed a title. The class's member methods enable the rotation, anagram, and presentation of the word. The user-supplied word is obtained by the main() procedure, which then uses the anagram() member function to anagram the word after creating a word object with the user-supplied word as an input to the function Object() { [native code] }.
In Chapter 10, the class clockType was designed to implement the time of day in a program. Certain applications, in addition to hours, minutes, and seconds, might require you to store the time zone. Derive the class extClockType from the class clockType by adding a member variable to store the time zone. Add the necessary member functions and constructors to make the class functional. Also, write the definitions of the member functions and the constructors. Finally, write a test program to test your class.
C++ Why does a superimposed assignment operator return a reference to the assigned object? See below. Foo & operator = (const Foo & rhs) { // magic return this; } } Select one or more options: 1. In order for the operator to be able to chain. 2. To set all assigned member variables to the object left. 3. Because a superimposed allocation operator must always return just that: a reference to itself. 4. For the assignment (in effect copying) to be deep instead of superficial. 5. To avoid this becoming a dangling pointer. 6. None of the above.
I need help in the Fill in the Blanks based on the following Specifications for Question 11,12,13. URGENT
you will design various classes and write a program to computerize the billing system of a hospital.a. Define a class personType having members of id, name, cnic. Define overloaded constructor,getter/setters and destructor.b. Design the class doctorType, inherited from the class personType, with an additional data member to store a doctor’s speciality. Add appropriate constructors and member functions to initialize, access, and manipulate the data members.c. Design the class billType with data members to store a patient’s ID and a patient’s hospital charges, such as pharmacy charges for medicine, doctor’s fee, and room charges. Add appropriate constructors and member functions to initialize and access and manipulate the data members.d. Design the class patientType, inherited from the class personType, with additional data members to store a patient’s ID, age, date of birth, attending physician’s name, the date when the patient was admitted in the hospital, and the date when the patient…
Q.Write a program to create a Distance class containing kilometers and meters asdata members. Also identify and implement functions to perform following operation:Distance d1, d2, d3;d1+=d2+d3 ++; subject-oops(c++)
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…
Consider the following definition of class Box and main function. Assuming constructor, copy constructor, assignment operator, and destructor of this class are properly without any error implemented, answer the following four questions: class Box { public: Box(); ~Box(); Box (const Box & source); fr Box& operator= (const Box & rhs); private: int* pointer; }; int main(void) { Box X; Box y(x); Box *z= new Box; x = y; return 0;
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: Select one: O a. ta().t.d(0: O b. a0.b().t: O . t.a(0.b0.d0: O d. t.d0.c):
Both child class and its parent class have same function signature. Which version of function will be called by the object pointer of parent class that is pointing to the child class’s object? Explain the reason. When do we need to use virtual function? Explain with example program
Step 1: Preparation Comment out the following under-construction code: In dynamicaray.h: Al function prototypes except the constructors and destructor. Keep the member variables. In dynamicarray.cpp: All function implementations except the constructors and destructor. Also remove (not just comment out) INITIAL_CAP, and replace it with a hard-coded 10 inside the default constructor. This will also eventually go away. In main: Comment out all the code inside the RunPart1Tests function between the lines. Also in main: Comment out all the code in the main function starting with the "Equality comparison" comment and just before the "return O;" line. bool pass = true; and return pass; Step 2: Replacing member data and the two constructors Replace the current member data (arr, len, and capacity) with a single vector of integers. At the top of your h, include the vector library. This is the only place you should need to include it. Also in your .h, remove your current member data, replace…