Getting the Roots of the Preference Trees : Preference Properties « Development Class « Java

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Java » Development Class » Preference Properties

Getting the Roots of the Preference Trees


   



import java.util.prefs.Preferences;



public class Main {

  public static void main(String[] argv) throws Exception {



    // Get the system root

    Preferences prefs = Preferences.systemRoot();



    // Get the user root

    prefs = Preferences.userRoot();



    // The name of a root is ""

    String name = prefs.name();



    // The parent of a root is null

    Preferences parent = prefs.parent();



    // The absolute path of a root is "/"

    String path = prefs.absolutePath();

  }

}

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9.	Retrieve the preference node using a Class object and saves and retrieves a preference in the node.
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13.	Getting and Setting Java Type Values in a Preference
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15.	Retrieving a Preference Node
16.	Removing a Preference Node
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18.	Retrieving the Parent and Child Nodes of a Preference Node
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20.	Exporting the Preferences in a Subtree of Preference Nodes
21.	Determining When a Preference Node Is Added or Removed
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34.	To read a Properties file via an Applet
35.	A Properties file stored in a JAR can be loaded this way
36.	Load a properties file in the startup directory
37.	Have a multi-line value in a properties file
38.	Convert a Properties list into a map.
39.	Listing All System Properties
40.	Getting and Setting Properties
41.	Use XML with Properties
42.	Store properties as XML file
43.	Reading and Writing a Properties File
44.	Read system property as an integer
45.	Read a configuration file using java.util.Properties
46.	Load properties from XML file
47.	Here is an example of the contents of a properties file:
48.	Use the Registry to store informations (Preferences API)
49.	Load a properties file in the classpath
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52.	PropsToXML takes a standard Java properties file, and converts it into an XML file
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54.	Static methods for retrieving and system properties and converting them to various types
55.	Store recent items (e.g. recent file in a menu or recent search text in a search dialog)
56.	Storing/loading Preferences

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