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Lynna [10]
2 years ago
9

The PictureBook class is a subclass of the Book class that has one additional attribute: a String variable named illustrator tha

t is used to represent the name of the illustrator of a picture book. The PictureBook class also contains a printBookInfo method to print the title, writer, and illustrator of a picture book. Consider the following code segment. PictureBook myBook = new PictureBook ("Peter and Wendy", "J.M. Barrie", "F.D. Bedford"); myBook.printBookInfo(); The code segment is intended to print the following output. Peter and Wendy, written by J.M. Barrie and illustrated by F.D. Bedford Complete the PictureBook class below. Your implementation should conform to the example above. public class PictureBook extends Book. Consider the following books. • A book titled Frankenstein, written by Mary Shelley A picture book titled The Wonderful Wizard of Oz, written by L. Frank Baum and illustrated by W.W. Denslow The following code segment is intended to represent the two books described above as objects bookl and book2, respectively, and add them to the ArrayList myLibrary. ArrayList myLibrary = new ArrayList(); /* missing code */ myLibrary.add(bookl); my Library.add(book2);
Computers and Technology
1 answer:
bulgar [2K]2 years ago
8 0

Answer:s

s

Explanation:

x

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Choose the correct sequence for classifier building from the following.
Alekssandra [29.7K]

Answer:

b

Explanation:

First, we need to initialize the classifier.

Then, we are required to train the classifier.

The next step is to predict the target.

And finally, we need to evaluate the classifier model.

You will find different algorithms for solving the classification problem. Some of them are like  decision tree classification  etc.

However, you need to know how these classifier works.  And its explained before:

You need  to initialize the classifier at first.

All kinds of classifiers in the scikit-learn make use of the method fit(x,y) for fitting the model or the training for the given training set in level y.

The predict(x) returns the y which is the predicted label.And this is prediction.

For evaluating the classifier model- the score(x,y) gives back the certain score for a mentioned test data x as well as the test label y.

8 0
2 years ago
You have been tasked with building a URL file validator for a web crawler. A web crawler is an application that fetches a web pa
mixas84 [53]

Answer:

Python Code:

def validate_url(url):

#Creating the list of valid protocols and file name extensions

valid_protocols = ['http', 'https', 'ftp']

valid_fileinfo = ['.html', '.csv', '.docx']

#splitting the url into two parts

url_split = url.split('://')

isProtocolValid = False

isFileValid = False

#iterating over the valid protocols and file names for validity

for x in valid_protocols:

if x in url_split[0]:

isProtocolValid = True

break

for x in valid_fileinfo:

if x in url_split[1]:

isFileValid = True

break

#Returning the result if the URL has both valid protocol and file extension

return (isProtocolValid and isFileValid)

url = input("Enter an URL: ")

print(validate_url(url))

Explanation:

The image of the output code is attached. Hope it helps.

4 0
2 years ago
Write a statement to add the key Tesla with value USA to car_makers. Modify the car maker of Fiat to Italy. Sample output for th
marishachu [46]

Answer:

Input code:

car_makers = {'Honda': 'Japan', 'Fiat': 'Germany'}

#add Tesla and USA as corresponding value

car_makers['Tesla'] = 'USA'

#change Fiat entry to Italy instead of Germany

car_makers['Fiat'] = 'Italy'

print(car_makers)

print('Honda made in', car_makers['Honda'])

print('Fiat made in', car_makers['Fiat'])

print('Tesla made in', car_makers['Tesla'])

Explanation:

The first line is a define object in the python code, containing two entries of Honda and Fiat and their respective countries.

The python code adds an entry to the object "car maker" using the bracket notation, the tesla car from USA.

The country of the Fiat car is changed from Germany to Italy, using the bracket notation.

The output of the complete object and the individual cars is given.

<u>output of the python code:</u>

{'Honda': 'Japan', 'Fiat': 'Italy', 'Tesla': 'USA'}

Honda made in Japan

Fiat made in Italy

Tesla made in USA.

7 0
2 years ago
When Liam went to print his presentation, the boot process established the connection to the printer, sent the presentation to t
Mars2501 [29]

Answer:

b. False

Explanation:

When Liam went to print his presentation, the boot process established the connection to the printer, sent the presentation to the printer, and let other software know the printer was busy. It is a false statement.

6 0
2 years ago
More Loops: All versions of foods.py in this section have avoided using for loops when printing to save space. Choose a version
Nata [24]

Answer:

Following are the program in the Python Programming Language.

#set list type variable and initialize the elements

myPizza = ['Margarita', 'Capsicum and onion', 'Chicken']

#set variable and initialize the elements

frndPizzas = myPizza[:]

#append value in list variable

myPizza.append('Corn')

#append value in list variable

frndPizzas.append('paperica')

#print message

print("My pizzas are:")

#set the for loop and print elements of 1st list

for pizza in myPizza:

   print(pizza)

#print message

print("\nFriend's pizzas are:")

#set the for loop and print elements of 2st list

for frndsPizza in frndPizzas:

   print(frndsPizza)

<u>Output</u>:

My pizzas are:                                                                                                                  

Margarita                                                                                                                       Capsicum and onion                                                                                                               Chicken                                                                                                                          Corn                                                                                                                                                                                                                                                        

Friend's pizzas are:                                                                                                            

Margarita                                                                                                                      Capsicum and onion                                                                                                              Chicken                                                                                                                         paperica    

Explanation:

<u>Following are the description of the program</u>:

  • Set a list data type variable that is 'myPizza' and initializes elements in it.
  • Set another list data type variable that is 'frndPizzas' and initializes elements in it.
  • Append one-one element in both of the list data type variables.
  • Set the for loops to print the elements of both list data type variables.
5 0
2 years ago
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