Object Oriented Programming & Methodology (IT-304) - Important Questions

What are the unique advantages of the object-oriented programming paradigm?

Explain function overloading with example.

How is Data Encapsulation different from Information Hiding? Explain with example.

What is an inline function, how is a function declared inline with syntax, and what are the advantages of inline functions?

Explain about call by reference and return by reference with program.

Explain call by reference and return by reference with a program.

In C++, a variable can be declared anywhere in the scope. What is the significance of this feature?

What are the features of object-oriented programming and how is C++ different from C?

Explain ways to take input in a C++ program.

Write a C++ program demonstrating inline member functions and discuss similarities and differences between macros and inline functions.

What concepts or techniques are used in object-oriented approach for handling system complexity?

Write C++ overloaded Max function to return the larger of two integers, two reals, or two strings.

How polymorphism is achieved at compile time and at run time

Difference between overloading and overriding and role of binding in polymorphism with example

Write a C++ program with a Student class including a validateExamMarks() method to validate examination marks in the range 65 to 100 inclusive.

Compare differences between C++ structure and C++ class, illustrated with an example program.

Describe the mechanism of accessing data members and member functions inside the main program, inside a member function of the same class, and inside a member function of another class.

Write a program to explain the concept of array of objects.

What is a constructor? Write a program to demonstrate the copy constructor and its use.

Write a C++ program for area of rectangle and circle using run time polymorphism

Explain the purpose of constructors in C++ with examples and how constructors are invoked, including constructor overloading and calling one constructor from another.

Differentiate with example between abstract and non-abstract classes and between runtime and compile-time polymorphism

Create Telephone base class and ElectronicPhone derived class overriding Ring() to illustrate polymorphic method

Write a C++ class to store marks of 3 subjects with setters/getters and a getResults() method to print grade based on average.

What is inheritance, what are its advantages/importance, and explain different types of inheritance including multilevel and multiple inheritance with examples, diagrams and syntax.

Define operator overloading and explain how to overload unary and binary operators with syntax and example program.

Explain Access Specifiers with respect to inheritance.

Explain the order in which base class and derived class constructors are called when a derived class object is created.

Explain unary operator overloading with an example and discuss its pros and cons.

Write a C++ program to define derived class constructors that initialize base class members, including explicit invocation of a base class constructor that has no default constructor.

Define a Complex number class with member functions for addition, subtraction and multiplication.

Create a class called Employee whose objects are records for an employee. This class will be derived class of the class Person which you will have to copy into a file of your own and compile. An employee record has an employee's name (inherited from the class Person), an annual salary represented as a single value of type double, a year the employee started work as a single value of type int and a national insurance number, which is a value of type String. Your class should have a reasonable number of constructors and accessor methods, as well as an equals method. Write a main( ) method to fully test your class definition.

What ambiguity arises in multiple inheritance and how can it be overcome, explained with an example.

What is friend function? Explain application of friend function with suitable example.

Explain virtual function with suitable example and its purpose

Explain i) new and delete keywords and ii) this pointer.

Explain, with an example, how you would create space for an array of objects using pointers.

Explain/discuss virtual functions and friend functions (including static/pure functions, syntax, and role of virtual function and abstract class) with examples

Explain dynamic memory management in C++ using new and delete, with example of allocating and clearing memory used by an object.

What are exceptions? Distinguish between synchronous and asynchronous exceptions.

What are stream classes and stream errors? Explain various stream classes including input and output streams with examples.

Write a short note on disk file I/O with streams and on data hiding.

Explain overloaded function templates with a suitable example program.

Explain with an example file I/O and debugging pointers.

Explain the different keywords used for handling runtime exceptions.