This is an example of how to store Preferences to user space. The Preferences class allows applications to store and retrieve user and system preference and configuration data. Storing Preferences to user space implies that you should:
- Get the root preference node for the calling user, using
userRoot()API method of Preferences. - Get the named preference for the given pathname of the preference node, with
node(String pathName)method of Preferences. - Associate the specified value with the specified key in the preference node, using
put()API method of Preferences. - Associate a string representing a double value with a specified key in this preference node, using
putDouble(String key, double value)API method of Preferences. - Associate a string representing a boolean value with a specified key in this preference node, using
putBoolean(String key, boolean value)API method of Preferences.
Let’s take a look at the code snippet that follows:
public class StaticPreferenceFactory {
public static void main(String args[]) throws Exception {
Preferences prefsRoot = Preferences.userRoot();
Preferences myPrefs = prefsRoot
.node("com.myapp.preference.staticPreferenceLoader");
myPrefs.put("fruit", "apple");
myPrefs.putDouble("price", 40);
myPrefs.putBoolean("available", false);
return prefsRoot;
}
}
This was an example of how to store Preferences to user space in Java.
Related Article:
Reference: Use java.util.prefs.Preferences instead of java.util.Properties from our JCG partner Rahul Sharma at the “The road so far…” blog
