Export System Preferences node
In
this section you will learn that how a user can access the System 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 system as root type
is system and due to none key value and node it display nothing in map.
Here is The Complete Code :
import java.util.prefs.*;
import java.io.IOException;
public class SavePrefs {
public static void main(String[] args)
throws IOException, BackingStoreException {
Preferences root = Preferences.systemRoot();
root.exportSubtree(System.out);
}
}
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After thoroughly knowing the code you should save the
file by "SavePrefs.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 SavePrefs.java
C:\anshu>java SavePrefs
<?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="system">
<map/>
</root>
</preferences>
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Downoload
this example.
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