Class java.awt.Checkbox

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Class java.awt.Checkbox

java.lang.Object
   |
   +----java.awt.Component
           |
           +----java.awt.Checkbox

public class Checkbox
extends Component

A Checkbox object is a graphical user interface element that has a boolean state.

Checkbox(): Constructs a Checkbox with no label, no Checkbox group, and initialized to a false state.
Checkbox(String): Constructs a Checkbox with the specified label, no Checkbox group, and initialized to a false state.
Checkbox(String, CheckboxGroup, boolean): Constructs a Checkbox with the specified label, specified Checkbox group, and specified boolean state.

addNotify(): Creates the peer of the Checkbox.
getCheckboxGroup(): Returns the checkbox group.
getLabel(): Gets the label of the button.
getState(): Returns the boolean state of the Checkbox.
paramString(): Returns the parameter String of this Checkbox.
setCheckboxGroup(CheckboxGroup): Sets the CheckboxGroup to the specified group.
setLabel(String): Sets the button with the specified label.
setState(boolean): Sets the Checkbox to the specifed boolean state.

Checkbox

  public Checkbox()

Constructs a Checkbox with no label, no Checkbox group, and initialized to a false state.

Checkbox

  public Checkbox(String label)

Constructs a Checkbox with the specified label, no Checkbox group, and initialized to a false state.

Parameters:: label - the leabel on the Checkbox

Checkbox

  public Checkbox(String label,
                  CheckboxGroup group,
                  boolean state)

Constructs a Checkbox with the specified label, specified Checkbox group, and specified boolean state. If the specified CheckboxGroup is not equal to null, then this Checkbox becomes a Checkbox button. If the Checkbox becomes a button, this simply means that only one Checkbox in a CheckboxGroup may be set at a a time.

Parameters:: label - the label on the Checkbox; group - the CheckboxGroup this Checkbox is in; state - is the initial state of this Checkbox

addNotify

  public synchronized void addNotify()

Creates the peer of the Checkbox. The peer allows you to change the look of the Checkbox without changing its functionality.

Overrides:: addNotify in class Component

getLabel

  public String getLabel()

Gets the label of the button.

See Also:: setLabel

setLabel

  public void setLabel(String label)

Sets the button with the specified label.

Parameters:: label - the label of the button
See Also:: getLabel

getState

  public boolean getState()

Returns the boolean state of the Checkbox.

See Also:: setState

setState

  public void setState(boolean state)

Sets the Checkbox to the specifed boolean state.

Parameters:: state - the boolean state
See Also:: getState

getCheckboxGroup

  public CheckboxGroup getCheckboxGroup()

Returns the checkbox group.

See Also:: setCheckboxGroup

setCheckboxGroup

  public void setCheckboxGroup(CheckboxGroup g)

Sets the CheckboxGroup to the specified group.

Parameters:: g - the new CheckboxGroup
See Also:: getCheckboxGroup

paramString

  protected String paramString()

Returns the parameter String of this Checkbox.

Overrides:: paramString in class Component

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