Exporting the User Type Preferences in a Subtree of Preference Node
In
this section you will learn that how a user can access the User preferences.
Here we are going to make it easier to understand the step be step process by
the complete example on this topic. If we consider the example it will display
the preferences of the user as root type="user" after that it display
the node name as in the output is "anshu", "roseindia" and
then it'll display the map tree. In this way we can access the user preferences.
Here is The Complete Code :
import java.util.prefs.*;
import java.io.IOException;
public class SavePref {
public static void main(String[] args)
throws IOException, BackingStoreException {
Preferences root = Preferences.userRoot();
root.exportSubtree(System.out);
}
}
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After thoroughly knowing the code you should save the
file by "SavePref.java" file name and when after compiling the code
you run your program you will get the output given below .
Here is The Output Of The Example :
C:\anshu>javac SavePref.java
C:\anshu>java SavePref
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!DOCTYPE preferences SYSTEM "http://java.sun.com/dtd/preferences.dtd">
<preferences EXTERNAL_XML_VERSION="1.0">
<root type="user">
<node name="anshu">
<map>
<entry key="city1" value="delhi"/>
<entry key="intValue" value="2"/>
<entry key="booleanValue" value="true"/>
<entry key="UsageCount" value="3"/>
</map>
</node>
<node name="roseindia">
<map>
<entry key="One" value="Washington"/>
<entry key="Two" value="Jefferson"/>
<entry key="Five" value="Lincoln"/>
<entry key="Ten" value="Hamilton"/>
<entry key="Twenty" value="Jackson"/>
<entry key="HR" value="Deepak"/>
<entry key="Programmer" value="Amit"/>
<entry key="Team Leadere" value="Chandan"/>
</map>
</node>
</root>
</preferences>
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Downoload
this example.
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