Question

A. Please explain function below:

unorderedArrayListType::unorderedArrayListType(int size)
: arrayListType(size)
{
}

B. Please explain function below:

voidunorderedArrayListType::remove(intremoveItem)
{
int loc;

if (length == 0)
cout << "Cannot delete from an empty list." << endl;
else
{
loc = seqSearch(removeItem);

if (loc != -1)
removeAt(loc);
else
cout << "The item to be deleted is not in the list."
<< endl;
}
}

C. Please explain function below:

What is the output of the following code?

int x = 0;

int y = 1;

void print() {

cout << "small: -- " << endl

<< "x: " << x << ", ", y = " << y << endl;

}

D. Please explain function below:

Please explain function below:

voidbookType::setBookInfo(string title, string ISBN,
string Publisher, intPublishYear,
stringauth[], double cost, int copies,
intauthorCount)
{
inti;

bookTitle = title;
bookISBN = ISBN;
bookPublisher = Publisher;

bookPublishYear = PublishYear;

noOfAuthors = authorCount;

for (i = 0; i < noOfAuthors; i++)
authors[i] = auth[i];

price = cost;
quantity = copies;
}

Answer 1

A. Please explain function below:

unorderedArrayListType::unorderedArrayListType(int size)
: arrayListType(size)
{
}

Explanation: Its a parameterised constructor with class name unorderedArrayListType that takes input as size and initialised arrayList with length equal to the size passed.


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B. Please explain function below:

void unorderedArrayListType::remove(intremoveItem)
{
int loc;

if (length == 0)
cout << "Cannot delete from an empty list." << endl;
else
{
loc = seqSearch(removeItem);

if (loc != -1)
removeAt(loc);
else
cout << "The item to be deleted is not in the list."
<< endl;
}
}

Explanation: This function removes an item from unorderedArrayList, the function proceeds in following way. If first checks if the arrayList has atleast one element . If the size is 0 then just return because there is no element to delete.
Otherwise find the position of the element to be deleted using sequential search. Then just call the function remove At location by passing the location of the element.


------------------------------------------------------------------------------------------------------------------------------------------------------------

C. Please explain function below:

What is the output of the following code?

int x = 0;

int y = 1;

void print() {

cout << "small: -- " << endl

<< "x: " << x << ", ", y = " << y << endl;

}

Output: small: -- x: 0, y = 1

--------------------------------------------------------------------------------------------------------------------------

D. Please explain function below:

Please explain function below:

voidbookType::setBookInfo(string title, string ISBN,
string Publisher, intPublishYear,
stringauth[], double cost, int copies,
intauthorCount)
{
inti;

bookTitle = title;
bookISBN = ISBN;
bookPublisher = Publisher;

bookPublishYear = PublishYear;

noOfAuthors = authorCount;

for (i = 0; i < noOfAuthors; i++)
authors[i] = auth[i];

price = cost;
quantity = copies;
}

Explanation:  setBookInfo is the mutator that sets the book information with the argument passed to the function.
It sets the book title, publisher, year, price, quantity and the author list.

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