Chapter 13.8, Problem 13.15CP

Explanation of Solution

Creating a relationship between radio button menu items:

• Creating a relationship between radio button menu items is by adding an object of radio menu item to an object of “ToggleGroup”.
  • In radio button menu item when the user chosen an item, the one that was previously selected it deselected.
  • Hence only one of menu item can be selected at a time.
• User can create a radio button menu item using “JRadioButtonMenuItem” class.
  • The object of “JRadioButtonMenuItem” performs an action event, when the user selects it.
• The radio button menu item shows that may be selected or deselected.

Example:

The example for creating a relationship between radio button menu items is shown below:

//create the radio menu item for blue color.

JRadioButtonMenuItem blueColor = new JRadioButtonMenuItem ("Blue", true);

//create the radio menu item for black color.

JRadioButtonMenuItem blackColor = new JRadioButtonMenuItem ("Black", true);

//create the radio menu item for white color...