Assume that Dog is a user-defined class. It has a public member function named b

Question

Assume that Dog is a user-defined class. It has a public member function named bark () that takes no arguments. Consider the following line of C++ code, which appears in a user-defined function: Dog Fido; Which of the following statements are true about this line of code? Select all that apply the object that is created by this line is definitely created This line calls the 0-argument constructor in the class Dog the value of Fido is the memory address where the Dog object is located. Write a statement that will call the function bark on the object created in the above line of code. Now assume that there is another function (not a member function of dog) named walk, declared walk (Dog & d); Write a statement to call the function walk, appropriately passing the object Fido to the function.

Explanation / Answer

Answer:-

B. This line calls the 0-argument constructor in the class Dog.
C. The value of fido is the memory address where the Dog object is located.

Explanation:-

The constructor is a special method given in OOP language for creating and initializing an object. In C++, constructor alone creates and initializes an object. A constructor is automatically called when an object is created.

The statement that will call the function bark on the object created in the above line of code:-

Syntax:-

Object_Name.function( );

Answer:-

fido.bark( );

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