Explanation of Solution
Given program:
RadioButton radio1 = new RadioButton("Option 1"); //Line 1
RadioButton radio2 = new RadioButton("Option 2"); //Line 2
ToggleGroup radioGroup = new ToggleGroup(); //Line 3
radioGroup.setToggleGroup(radio1); //Line 4
radioGroup.setToggleGroup(radio2); //Line 5
RadioButton:
- User create a “RadioButton” control using the “RadioButton” class.
- This class is present in the package of “javafx.scene.control”.
- The controls “RadioButton” is used to permit the user to choose one option from the several possible options.
- It may be selected or deselected.
- Each “RadioButton” consist of a small circle.
- If a circle appears filled-in, then the “RadioButton” is selected.
- If a circle appears empty, then the “RadioButton” is deselected.
Example:
The example for “RadioButton” is shown below:
//create the radio button
RadioButton exampleButton = new RadioButton("Option 1");
ToggleGroup:
- It is one class of JavaFX application which is used to create toggle group.
- It is available in package “javafx.scene.control”.
- Generally, the “RadioButton” controls are grouped together in a toggle group.
- In a toggle group, only one of the “RadioButton” controls may be chosen at any time.
- Then this “RadioButton” are referred as “mutually exclusive”.
Example:
The example for “ToggleGroup” is shown below:
// create a ToggleGroup.
ToggleGroup newToggleGroup = new ToggleGroup();
- The above code is used to create a “ToggleGroup”.
Calling “RadioButton” in “ToggleGroup”:
The example for calling “RadioButton” in “ToggleGroup” is shown below:
//create the radio button 1...
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Starting Out with Java: From Control Structures through Data Structures (4th Edition) (What's New in Computer Science)
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