Preferences: get(String key, String def) : Preferences « java.util.prefs « Java by API

1. Java by API
2. java.util.prefs
3. Preferences

Preferences: get(String key, String def)

   
import java.util.prefs.Preferences;

public class MainClass {
  public static void main(String[] args) {

    // Setup the Preferences for this application, by class.
    Preferences prefs = Preferences.userNodeForPackage(MainClass.class);

    // Retrieve some preferences previously stored, with defaults in case
    // this is the first run.
    String text = prefs.get("A", "a");
    String display = prefs.get("B", "b");
    System.out.println(text);
    System.out.println(display);

    // Assume the user chose new preference values: Store them back.
    prefs.put("A", "aa");
    prefs.put("B", "bb");
  }
}

           
         
    
    
  

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