Chapter 13: Problem 14

What class do you use to create a radio button menu item? What do you pass to the class constructor? How do you cause it to be initially selected?

Short Answer

Expert verified

Answer: The class used to create a radio button menu item is called JRadioButtonMenuItem. To create a JRadioButtonMenuItem object, you have to pass a string (that is the label of the radio button menu item) or an Icon to the constructor. To make the radio button menu item initially selected, you can use the method setSelected(true) on the JRadioButtonMenuItem object.

Step by step solution

Identify the class for a radio button menu item

The class used to create a radio button menu item is called JRadioButtonMenuItem.

Pass required arguments to the class constructor

To create a JRadioButtonMenuItem object, you have to pass a string (that is the label of the radio button menu item) or an Icon to the constructor. In the case of using a string, it would look like this: new JRadioButtonMenuItem("RadioButtonMenuItemName").

Making the radio button menu item initially selected

In order to make the radio button menu item initially selected, you can use the method setSelected(true) on the JRadioButtonMenuItem object. For example: ``` JRadioButtonMenuItem radioButtonMenuItem = new JRadioButtonMenuItem("RadioButtonMenuItemName"); radioButtonMenuItem.setSelected(true); ``` This would create a radio button menu item with the label "RadioButtonMenuItemName" and make it initially selected.

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What class do you use to create a radio button menu item? What do you pass to the class constructor? How do you cause it to be initially selected?

Short Answer

Step by step solution

Identify the class for a radio button menu item

Pass required arguments to the class constructor

Making the radio button menu item initially selected

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