Module java.desktop
Package javax.swing.border

# Class EmptyBorder

java.lang.Object
javax.swing.border.AbstractBorder
javax.swing.border.EmptyBorder

All Implemented Interfaces:
  `Serializable`, `Border`

Direct Known Subclasses:
  `BorderUIResource.EmptyBorderUIResource`, `MatteBorder`

public class EmptyBorder extends AbstractBorder implements Serializable
A class which provides an empty, transparent border which takes up space but does no drawing.

Warning: Serialized objects of this class will not be compatible with future Swing releases. The current serialization support is appropriate for short term storage or RMI between applications running the same version of Swing. As of 1.4, support for long term storage of all JavaBeans has been added to the `java.beans` package. Please see `XMLEncoder`.

## Field Summary

Fields
Modifier and Type
Field
Description
`protected int`
`bottom`
The bottom inset of the border.
`protected int`
`left`
The left inset of the border.
`protected int`
`right`
The right inset of the border.
`protected int`
`top`
The top inset of the border.

## Constructor Summary

Constructors
Constructor
Description
`EmptyBorder(int top, int left, int bottom, int right)`
Creates an empty border with the specified insets.
`EmptyBorder(Insets borderInsets)`
Creates an empty border with the specified insets.

## Method Summary

Modifier and Type
Method
Description
`Insets`
`getBorderInsets()`
Returns the insets of the border.
`Insets`
`getBorderInsets(Component c, Insets insets)`
Reinitialize the insets parameter with this Border's current Insets.
`boolean`
`isBorderOpaque()`
Returns whether or not the border is opaque.
`void`
`paintBorder(Component c, Graphics g, int x, int y, int width, int height)`
Does no drawing by default.

### Methods declared in class javax.swing.border.AbstractBorder

`getBaseline, getBaselineResizeBehavior, getBorderInsets, getInteriorRectangle, getInteriorRectangle`

### Methods declared in class java.lang.Object

`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

## Field Details

### left

protected int left
The left inset of the border.

### right

protected int right
The right inset of the border.

### top

protected int top
The top inset of the border.

### bottom

protected int bottom
The bottom inset of the border.

## Constructor Details

### EmptyBorder

public EmptyBorder(int top, int left, int bottom, int right)
Creates an empty border with the specified insets.

Parameters:
  `top` - the top inset of the border
  `left` - the left inset of the border
  `bottom` - the bottom inset of the border
  `right` - the right inset of the border

### EmptyBorder

@ConstructorProperties("borderInsets") public EmptyBorder(Insets borderInsets)
Creates an empty border with the specified insets.

Parameters:
  `borderInsets` - the insets of the border
Throws:
  `NullPointerException` - if the specified `borderInsets` is `null`

## Method Details

### paintBorder

public void paintBorder(Component c, Graphics g, int x, int y, int width, int height)
Does no drawing by default.

Specified by:
  `paintBorder` in interface `Border`
Overrides:
  `paintBorder` in class `AbstractBorder`
Parameters:
  `c` - the component for which this border is being painted
  `g` - the paint graphics
  `x` - the x position of the painted border
  `y` - the y position of the painted border
  `width` - the width of the painted border
  `height` - the height of the painted border

### getBorderInsets

public Insets getBorderInsets(Component c, Insets insets)
Reinitialize the insets parameter with this Border's current Insets.

Overrides:
  `getBorderInsets` in class `AbstractBorder`
Parameters:
  `c` - the component for which this border insets value applies
  `insets` - the object to be reinitialized
Returns:
  the `insets` object
Throws:
  `NullPointerException` - if the specified `insets` is `null`

### getBorderInsets

public Insets getBorderInsets()
Returns the insets of the border.

Returns:
  an `Insets` object containing the insets from top, left, bottom and right
Since:
  1.3

### isBorderOpaque

public boolean isBorderOpaque()
Returns whether or not the border is opaque. Returns false by default.

Specified by:
  `isBorderOpaque` in interface `Border`
Overrides:
  `isBorderOpaque` in class `AbstractBorder`
Returns:
  false