Starting Out with Java: From Control Structures through Data Structures (4th Edition) (What's New in Computer Science)
4th Edition
ISBN: 9780134787961
Author: Tony Gaddis, Godfrey Muganda
Publisher: PEARSON
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Expert Solution & Answer
Chapter 13, Problem 4FTE
Explanation of Solution
Given
ListView<String> myListView = new ListView<>(); //Line 1
myListView.getItems().addAll(10,20,30,40); //Line 2
ListView:
- “ListView” is used to show a list of items.
- It is also used to permit the user to select one or more items from the list.
- A “ListView” control is created with a help of “ListView” class.
- The data type of the “ListView” control are string, integer, double, float and so on.
- String data type:
- Declaration of string data type in “ListView” is
- String data type:
ListView<String> stringList = new ListView<>();
- Integer data type:
- Declaration of integer data type in “ListView” is
ListView<Integer> numberList = new ListView<>();
- Declaration of integer data type in “ListView” is
Example:
The example for “ListView” control is shown below:
//create a ListView named fruitListView.
ListView<string> fruitListView = new ListView<>();
//add the fruit items to ListView control
fruitListView.getItems()...
Expert Solution & Answer
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Check out a sample textbook solutionStudents have asked these similar questions
What happens if the value of the ImageSize property does not correspond to the size of the images stored in the ImageList control's storage area?
JAVASCRIPT
addButtonListeners
a. Selects all buttons nested inside the main element
b. If buttons exist:
c. Loop through the NodeList of buttons
d. Gets the postId from button.dataset.postId
e. Adds a click event listener to each button (reference addEventListener)
f. The listener calls an anonymous function (see cheatsheet)
g. Inside the anonymous function: the function toggleComments is called with the
event and postId as parameters
h. Return the button elements which were selected
i. You may want to define an empty toggleComments function for now. Not all tests
will pass for addButtonListeners until toggleComments exists. I recommend
waiting on the logic inside the toggleComments function until we get there.
*/
function addButtonListeners(){
}
Javascript
toggleCommentSection function
The function toggleCommentSection should exist.
The function toggleCommentSection should return undefined if not passed a parameter.
The function toggleCommentSection should return null if passed a parameter that does not match a post ID.
The function toggleCommentSection should select and return the correct section element.
The function toggleCommentSection should toggle the 'hide' class on the section
The following are requirements of the function toggleCommentSection: element.toggleCommentSection a. Receives a postId as the parameter b. Selects the section element with the data-post-id attribute equal to the postId received as a parameter c. Use code to verify the section exists before attempting to access the classList property d. At this point in your code, the section will not exist. You can create one to test if desired. e. Toggles the class 'hide' on the section element f. Return the section element
Here is what I have so far:…
Chapter 13 Solutions
Starting Out with Java: From Control Structures through Data Structures (4th Edition) (What's New in Computer Science)
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