[Chapter 19] CheckboxGroup

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| Chapter 19 java.awt Reference |

# CheckboxGroup

## Name

CheckboxGroup

##

## Description

The `CheckboxGroup` class provides the means to group multiple `Checkbox` items into a mutual exclusion set, so that only one checkbox in the set has the value `true` at any time. The checkbox with the value `true` is the currently selected checkbox. Mutually exclusive checkboxes usually have a different appearance from regular checkboxes and are also called "radio buttons."

## Class Definition

    public class java.awt.CheckboxGroup
        extends java.lang.Object
        implements java.io.Serializable {

      // Constructors
      public CheckboxGroup();

      // Instance Methods
      public Checkbox getCurrent();
      public Checkbox getSelectedCheckbox()
      public synchronized void setCurrent (Checkbox checkbox);
      public synchronized void setSelectedCheckbox (Checkbox checkbox);
      public String toString();
    }

## Constructors

### CheckboxGroup

#### public CheckboxGroup()

Description

  Constructs a `CheckboxGroup` object.

## Instance Methods

### getCurrent

#### public Checkbox getCurrent()

Returns

  The currently selected `Checkbox` within the `CheckboxGroup`.

Description

  Replaced by the more aptly named `getSelectedCheckbox()`.

### getSelectedCheckbox

#### public Checkbox getSelectedCheckbox()

Returns

  The currently selected `Checkbox` within the `CheckboxGroup`.

### setCurrent

#### public synchronized void setCurrent (Checkbox checkbox)

Parameters

  checkbox

    The `Checkbox` to select.

Description

  Changes the currently selected `Checkbox` within the `CheckboxGroup`.

Description

  Replaced by `setSelectedCheckbox(Checkbox)`.

### setSelectedCheckbox

#### public synchronized void setSelectedCheckbox (Checkbox checkbox)

Parameters

  checkbox

    The `Checkbox` to select.

Description

  Changes the currently selected `Checkbox` within the `CheckboxGroup`.

### toString

#### public String toString()

Returns

  A string representation of the `CheckboxGroup` object.

Overrides

  `Object.toString()`

## See Also

`Checkbox`, `Object`, `String`

Checkbox |  | CheckboxMenuItem