Write three derived classes inheriting functionality of base class person (should have a member function that ask to enter name and age) and with added unique features of student, and employee, and functionality to assign, change and delete records of student and employee. And make one member function for printing address of the objects of classes (base and derived) using this pointer. Create two objects of base class and derived classes each and print the addresses of individual objects. Using calculator, calculate the address space occupied by each object and verify this with address spaces printed by the progra

Write three derived classes inheriting functionality of base class person (should have a member function that ask to enter name and age) and with added unique features of student, and employee, and functionality to assign, change and delete records of student and employee. And make one member function for printing address of the objects of classes (base and derived) using this pointer. Create two objects of base class and derived classes each and print the addresses of individual objects. Using calculator, calculate the address space occupied by each object and verify this with address spaces printed by the progra

Programming Logic & Design Comprehensive

9th Edition

ISBN:9781337669405

Author:FARRELL

Publisher:FARRELL

Chapter6: Arrays

Section: Chapter Questions

Problem 5PE

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Write three derived classes inheriting functionality of base class person (should have a member function that ask to enter name and age) and with added unique features of student, and employee, and functionality to assign, change and delete records of student and employee.And make one member function for printing address of the objects of classes (base and derived) using this pointer.Create two objects of base class and derived classes each and print the addresses of individual objects.Using calculator, calculate the address space occupied by each object and verify this with address spaces printed by the program.
How should a software utilize pointers or references from the base class to invoke the same virtual function so that it may be used in different data types?
A pointer is basically a reference to an object or a function. In fact, it is a variable that holds memory address. This address is the location of some other variable or object in memory. For example, if one variable contains the address of another variable, first one is said to point to the second one. Pointers may have many uses, such as to make functions implement “call-by-reference" methodology and to construct dynamic arrays or structures at run-time. a) Write a complete C program that demonstrates the usage of call-by-reference technique needed for swapping. V Develop a call-by-value version to see that changes done to the parameters inside the function are lost.
Write a class Teacher that contains the attribute teacher name, age and address. It also contains member function to input and display its attributes. Write another class Author that contains the attributes author name, address and number of books written by him. It also contains member functions to input and display its attributes. Write a third class Scholar that inherits both Teacher and Author classes, scholar attributes are roll number, class and cgpa. In scholar get function to input values and show function to display the values, Test these classes from main() by creating objects of derived classes and testing functions in a way that clear concept of multiple Inheritance.
A pointer is basically a reference to an object or a function. In fact, it is a variable that holds memory address. This address is the location of some other variable or object in memory. For example, if one variable contains the address of another variable, first one is said to point to the second one. Pointers may have many uses, such as to make functions implement “call-by-reference" methodology and to construct dynamic arrays or structures at run-time. a) Write a complete C program that demonstrates the usage of call-by-reference technique needed for swapping. V Develop a call-by-value version to see that changes done to the parameters inside the function are lost. b) Write a complete C program that implements below given user-defined function prototypes for arrays-of-integers. * void input_ld_array( int*, int ); void output_ld_array( int*, int ); * int sum_ld_array( int*, int ); * float average_ld_array( int*, int ); V Test each function separately! c) [if time allows] Implement…
2. Create a class: Doctor, with private data members: id, name, specialization and salary withpublic member function: get_data () to take input for all data members, show_data () to displaythe values of all data members and get_specialization () to return specialization. Write aprogram to write 10 records of doctors and allocating the memory at run time only.
How should a software call a base class virtual function so that it may make use of the same virtual function in a variety of different forms and structures? A base class pointer or reference is required.
A pointer is basically a reference to an object or a function. In fact, it is a variable that holds memory address. This address is the location of some other variable or object in memory. For example, if one variable contains the address of another variable, first one is said to point to the second one. Pointers may have many uses, such as to make functions implement “call-by-reference" methodology and to construct dynamic arrays or structures at run-time. [if time allows] Implement below given user-defined string-handling function prototypes. * void string_length( char* ); * void string_copy( char*, char* ); * void string_concatenate( char*, char*, char* ); Test each function separately!
"Pointers are known to have issues with dangling and wild pointers." With the use of appropriate examples, justify the stated statement.
A pointer is basically a reference to an object or a function. In fact, it is a variable that holds memory address. This address is the location of some other variable or object in memory. For example, if one variable contains the address of another variable, first one is said to point to the second one. Pointers may have many uses, such as to make functions implement “call-by-reference" methodology and to construct dynamic arrays or structures at run-time. Write a complete C program that implements below given user-defined function prototypes for arrays-of-integers. * void input_ld_array( int*, int ); void output_ld_array( int*, int ); int sum_ld_array( int*, int ); * float average_ld_array( int*, int ); v Test each function separately!
When arrays are supplied to functions as parameters: A They are never passed by reference.B. They are usually passed by reference.C. Arrays cannot be sent as arguments to functions.D. There is no need to supply arrays to functions because they are global by default.
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