Question 1

Data hiding is a means of achieving overloading of a particular method.

Accepted Answer

Data hiding and method overloading are two separate concepts in object-oriented programming. Data hiding is the process of encapsulating data within a class or object to restrict access to it, while method overloading is the ability to define multiple methods with the same name but different parameters in a class. They are not directly related to each other.

Question 2

A public method is part of the internal interface of a program.

Accepted Answer

A public method is part of the external interface of a program, meaning it can be accessed by other classes and components outside of its own class.

Question 3

A single method cannot be both public and private at the same time.

Accepted Answer

This is because public methods can be accessed from any class while private methods can only be accessed from within the same class. Therefore, a single method cannot have both the accessibility of a public and a private method simultaneously.

Question 4

A return value for a method is required.

Accepted Answer

A method in programming can be designed to return a value, but it is not required to do so; methods can perform actions without returning any value, in which case they are often specified as returning void.

Question 5

A constructor must have the same name as the class that contains it.

Accepted Answer

This is true. The constructor is a special method that is called when an object of a class is created. It must have the same name as the class it belongs to.

Question 6

A class is an instance of an object.

Accepted Answer

An object is an instance of a class, not the other way around.

Question 7

A data type must be specified for a method name.

Accepted Answer

A method name does not require a data type to be specified. However, the input parameters and return type of the method should have specified data types.

Question 8

A data type for a return value must be specified in the method heading.

Accepted Answer

In a method heading, the data type for the return value must be specified. If there is no return value, then the data type "void" should be used.

Question 9

A driver program can cause instances of classes to be created during processing.

Accepted Answer

Yes, a driver program can create instances of classes by calling their constructors and using the created objects for processing.

Question 10

A default constructor can perform memory allocation.

Accepted Answer

A default constructor can contain code to perform memory allocation, as constructors in general can execute any code, including memory allocation operations.

Quiz 10: Introduction to Object-Oriented Design