Preferences: keys() : Preferences « java.util.prefs « Java by API

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Java by API » java.util.prefs » Preferences

Preferences: keys()


   

import java.util.prefs.Preferences;



public class Main {

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

    Preferences prefsRoot = Preferences.userRoot();

    Preferences myPrefs = prefsRoot.node("PreferenceExample");



    myPrefs.put("A", "a");

    myPrefs.put("B", "b");

    myPrefs.put("C", "c");



    System.out.print("Node's keys: ");

    for (String s : myPrefs.keys()) {

      System.out.print(s + "");

    }

  }

}

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15.	Preferences: name()
16.	Preferences: node(String pathName)
17.	Preferences: nodeExists(String pathName)
18.	Preferences: parent()
19.	Preferences: put(String key, String value)
20.	Preferences: putBoolean(String key, boolean value)
21.	Preferences: putByteArray(String key, byte[] value)
22.	Preferences: putDouble(String key, double value)
23.	Preferences: putFloat(String key, float value)
24.	Preferences: putLong(String key, long value)
25.	Preferences: remove(String key)
26.	Preferences: removeNode()
27.	Preferences: systemRoot()
28.	Preferences: userNodeForPackage(Class c)
29.	Preferences: userRoot()

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