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Getting the Maximum Size of a Preference Key and Value

                         

This section demonstrates you to get the maximum size of Preference key and value. You can see in the given example that we have used the fields of class Preferences. The field MAX_KEY_LENGTH provides the maximum length of string for a key and MAX_VALUE_LENGTH provides the maximum length of string for a value.

Here is the code of GetMaximumSize.java

 

 

 

 

import java.util.prefs.*;

public class GetMaximumSize{
  public static void main(String []args) throws Exception{
    int key= Preferences.MAX_KEY_LENGTH;
    int value = Preferences.MAX_VALUE_LENGTH;
    System.out.println("The maximum length of key="+key +" characters");
  System.out.println("The maximum length of value="+value +" characters");
  }
}

Output will be displayed as:

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