BPSC Tre 4.0 OOPS Concepts Practice Set

Que: (1). Which among the following, for a pure OOP language, is true?

Que: (2). In which access should a constructor be defined, so that object of the class can be created in any function?

Que: (3). When OOP concept did first come into picture?

Que: (4). Which access specifier is usually used for data members of a class?

Que: (5). Who invented OOP?

Que: (6). In multilevel inheritance, which is the most significant feature of OOP used?

Que: (7). The copy constructors can be used to

Que: (8). Which among the following can show polymorphism?

Que: (9). How many types of access specifiers are provided in OOP (C++)?

Que: (10). Which header file is required in C++ to use OOP?

Que: (11). What happens when an object is passed by reference?

Que: (12). Which among the following represents correct constructor?

Que: (13). What is encapsulation in OOP?

Que: (14). Which feature of OOP reduces the use of nested classes?

Que: (15). What is an abstraction in object-oriented programming?

Que: (16). Which is the correct syntax of inheritance?

Que: (17). Which feature of OOP is indicated by the following code?

                            class student{  int marks;  };
class topper:public student{  int age;  topper(int age){ this.age=age; } };
                        

Que: (18). Which of the following is not true about polymorphism?

Que: (19). Why Java is Partially OOP language?

                            Why Java is Partially OOP language?

(b) It does not support pointers

(d) It doesn't support all types of inheritance

(a) It allows code to be written outside classes

(c) It supports usual declaration of primitive data types