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 13.5, Problem 13.27CP
Explanation of Solution
ComboBox Controls:
- It is used to present a list of items in a drop-down list.
- User may select an item from a given list of items.
- Create a “ComboBox” control using the “ComboBox” class.
- It is present in the “javafx.scene.control” package.
- The “ComboBox” class contains a method “setEditable()”.
- This method contains an argument, which takes a “boolean” value.
- If the user passes “true” in the argument, then the “ComboBox” will be editable.
- If the user passes “false” in the argument, then the “ComboBox” will be uneditable.
Example:
The example for “ComboBox” controls is shown below:
//create a ComboBox named countryComboBox
ComboBox<String> countryComboBox = new ComboBox<>();
//add the fruit items to ComboBox control
countryComboBox.getItems().addAll("Africa", "Australia", "India", "China");
- From the example “countryComboBox” is a “ComboBox” control and next line code adds the items into a ComboBox control using “getItems().addAll()” method.
Difference between an editable “ComboBox” and an uneditable “ComboBox”:
Editable ComboBox | Uneditable ComboBox |
This “ComboBox” allows the user to select an item from a drop-down list or the user is able to type input into a control... |
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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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