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Using get method in preferences

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In this section you will learn how to use the get() method. Every value of the preference data stored using the Preferences API is stored in a particular node in one of the two preference trees and has a String key value with it which must be unique withi

Using get method in preferences

     

In this section you will learn how to use the get() method. Every value of the preference data stored using the Preferences API is stored in a particular node in one of the two preference trees and has a String key value with it which must be unique within that particular node of the tree. There are seven kind of "get" methods in the Preferences class, and every method for each of the valid preference types. Here we are going to make it easier to understand by the complete example on this topic. In this given example we explain a simple way for using the get method in preferences. Get is the most useful method with the help of which you can stored data in the class and can also print the value of that stored value by using simple print command.

Here is the Complete code of the Example :

import java.util.prefs.Preferences;

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

 
  Preferences prefs = Preferences.userNodeForPackage(get.class);

  String x = prefs.get("one""rose");
  String y = prefs.get("two""india");
  System.out.println(x);
  System.out.println(y);
  }
}

After thoroughly knowing the code you should save the file by "PrefFinal.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 get.java

C:\anshu>java get
rose
india

The above example explain the basic fundamental work of the get() method. The above output shows that how a get() method takes the value of the user and also show display on the user's instruction. In the above example "one" and "two" are the key value and "rose" and "india" is the value of that.

Downoload this example.

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Posted on: February 27, 2008

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