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java.lang.Object
- javax.swing.PopupFactory

```
public class PopupFactory
extends Object
```
PopupFactory, as the name implies, is used to obtain instances of Popups. Popups are used to display a Component above all other Components in a particular containment hierarchy. The general contract is that once you have obtained a Popup from a PopupFactory, you must invoke hide on the Popup. The typical usage is:
```
   PopupFactory factory = PopupFactory.getSharedInstance();
   Popup popup = factory.getPopup(owner, contents, x, y);
   popup.show();
   ...
   popup.hide();
 
```
Since:

1.4

See Also:
Popup

Constructor Summary

Constructors
Constructor and Description

PopupFactory()

PopupFactory (Java Platform SE 7 ) Home of API Java Contents Haut

Method Summary

Methods
Modifier and Type	Method and Description
`Popup`	`getPopup(Component owner, Component contents, int x, int y)` Creates a `Popup` for the Component `owner` containing the Component `contents`.
`static PopupFactory`	`getSharedInstance()` Returns the shared `PopupFactory` which can be used to obtain `Popup`s.
`static void`	`setSharedInstance(PopupFactory factory)` Sets the `PopupFactory` that will be used to obtain `Popup`s.

PopupFactory (Java Platform SE 7 ) Home of API Java Contents Haut

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - PopupFactory
```
public PopupFactory()
```
- Method Detail
  - setSharedInstance
```
public static void setSharedInstance(PopupFactory factory)
```
    Sets the PopupFactory that will be used to obtain Popups. This will throw an IllegalArgumentException if factory is null.
    
    Parameters:
    factory - Shared PopupFactory
    
    Throws:
    
    IllegalArgumentException - if factory is null
    See Also:
    getPopup(java.awt.Component, java.awt.Component, int, int)
  - getSharedInstance
```
public static PopupFactory getSharedInstance()
```
    Returns the shared PopupFactory which can be used to obtain Popups.
    
    Returns:
    Shared PopupFactory
  - getPopup
```
public Popup getPopup(Component owner,
             Component contents,
             int x,
             int y)
               throws IllegalArgumentException
```
    Creates a Popup for the Component owner containing the Component contents. owner is used to determine which Window the new Popup will parent the Component the Popup creates to. A null owner implies there is no valid parent. x and y specify the preferred initial location to place the Popup at. Based on screen size, or other paramaters, the Popup may not display at x and y.
    
    Parameters:
    owner - Component mouse coordinates are relative to, may be null
    contents - Contents of the Popup
    x - Initial x screen coordinate
    y - Initial y screen coordinate
    
    Returns:
    Popup containing Contents
    
    Throws:
    
    IllegalArgumentException - if contents is null

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Class PopupFactory

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

PopupFactory

Method Detail

setSharedInstance

getSharedInstance

getPopup

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