Let Course be a class with a default constructor and a parameterized constructor that accepts a C- string. How many times the default constructor is called when an array is defined as follows. Course myCourses[10] = {"CIS22B"}; Note that, when an array of objects is defined, the objects are created. And whenever an object is created, certain constructor is called to initialize the object. Feel free to test your answer in an IDE. O 1 O None of these O 10

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Chapter11: Advanced Inheritance Concepts
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### Understanding Constructor Calls in Arrays

In the context of object-oriented programming, a constructor is a special type of subroutine used to initialize objects. There are typically two kinds of constructors:

1. **Default Constructor:** This constructor takes no parameters and initializes an object with default values.
2. **Parameterized Constructor:** This constructor takes parameters and initializes an object with specific values provided during object creation.

#### Problem Statement

Consider the following problem regarding the use of constructors in an array of objects:

**Question:**

Let `Course` be a class with a default constructor and a parameterized constructor that accepts a C-string. How many times is the default constructor called when an array is defined as follows?

```cpp
Course myCourses[10] = {"CIS22B"};
```

**Note:** 
When an array of objects is defined, the objects are created. And whenever an object is created, a certain constructor is called to initialize the object. Feel free to test your answer in an Integrated Development Environment (IDE).

**Options:**

- ○ 9
- ○ 1
- ○ 0
- ○ None of these
- ○ 10

#### Explanation

To solve this problem, it's essential to understand how the array `myCourses` is initialized. The array is defined to hold 10 `Course` objects, with the first element initialized using the parameterized constructor `"CIS22B"`. For the remaining elements (from second to the tenth), the default constructor will be called.

Therefore, the correct answer is:

- **9 times** (since the default constructor will be called for each of the remaining 9 elements in the array).

Understanding the nuances of constructors and their calls in an array is crucial for efficient memory management and code initialization in complex object-oriented programming scenarios.
Transcribed Image Text:### Understanding Constructor Calls in Arrays In the context of object-oriented programming, a constructor is a special type of subroutine used to initialize objects. There are typically two kinds of constructors: 1. **Default Constructor:** This constructor takes no parameters and initializes an object with default values. 2. **Parameterized Constructor:** This constructor takes parameters and initializes an object with specific values provided during object creation. #### Problem Statement Consider the following problem regarding the use of constructors in an array of objects: **Question:** Let `Course` be a class with a default constructor and a parameterized constructor that accepts a C-string. How many times is the default constructor called when an array is defined as follows? ```cpp Course myCourses[10] = {"CIS22B"}; ``` **Note:** When an array of objects is defined, the objects are created. And whenever an object is created, a certain constructor is called to initialize the object. Feel free to test your answer in an Integrated Development Environment (IDE). **Options:** - ○ 9 - ○ 1 - ○ 0 - ○ None of these - ○ 10 #### Explanation To solve this problem, it's essential to understand how the array `myCourses` is initialized. The array is defined to hold 10 `Course` objects, with the first element initialized using the parameterized constructor `"CIS22B"`. For the remaining elements (from second to the tenth), the default constructor will be called. Therefore, the correct answer is: - **9 times** (since the default constructor will be called for each of the remaining 9 elements in the array). Understanding the nuances of constructors and their calls in an array is crucial for efficient memory management and code initialization in complex object-oriented programming scenarios.
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