Recent Lessons

Show all results for ""

10 Questions

0 Views

Parameterized ArrayList in Java

Choose a study mode

Play Quiz

Study Flashcards

Spaced Repetition

Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the purpose of the 'BookAdapter' class in the Android program mentioned in the text?

To define the layout structure for the list items
To create a pop-up menu for the list items
To handle item selections in the ListView
To manage a list of Book items in a ListView (correct)

In the 'BookAdapter' class, what is the significance of the 'getView' method?

To define the structure of each list item (correct)
To populate the ListView with data from an ArrayList
To inflate a layout for the list items
To create a pop-up menu for handling item selections

What is the role of 'LayoutInflater' in the 'getView' method of the 'BookAdapter' class?

To create a pop-up menu for the list items
To inflate a layout for the list items (correct)
To populate the ListView with data from an ArrayList
To handle item selections in the ListView

Which component is responsible for displaying the title of a Book item in the Android program?

txt_title (D) Signup and view all the answers

What does the 'ArrayList books' represent in the 'BookAdapter' constructor?

Data source for Book items (B) Signup and view all the answers

Which parameter in the 'getView' method is used to determine the position of the item being displayed?

'int position' (B) Signup and view all the answers

Why is it necessary to check if 'view == null' inside the 'getView' method?

To inflate a new layout (B) Signup and view all the answers

Which class does the 'BookAdapter' class extend in the Android program?

'BaseAdapter' (D) Signup and view all the answers

What is the purpose of the 'Context context' parameter in the 'BookAdapter' constructor?

To pass application-specific information (C) Signup and view all the answers

'txt_author.setText(book.author)' line of code is used to display what information about a Book item?

'Author' information (A) Signup and view all the answers