KeyStore getDefaultType() method in Java with Examples

The getDefaultType() method of java.security.KeyStore class is used to provide the default instance of Keystore class.

Syntax:

public static final String getDefaultType()

Parameter: This method takes nothing as a parameter.



Return Value: This method returns the default instance of Keystore class.

Note: All the programs in this article won’t run on online IDE as no ‘privatekey’ Keystore exists. You can check this code on the Java compiler on your system. To check this code, create a Keystore ‘privatekey’ on your system and set your own Keystore password to access that Keystore.

Below are the examples to illustrate the getDefaultType() method:

Example 1:

filter_none

edit
close

play_arrow

link
brightness_4
code

// Java program to demonstrate getDefaultType() method
  
import java.security.*;
import java.security.cert.*;
import java.util.*;
import java.io.*;
  
public class GFG {
    public static void main(String[] argv)
    {
        try {
  
            // creating the object of KeyStore
            // and getting instance
            // By usng getInstance() method
            KeyStore sr = KeyStore.getInstance("JKS");
  
            // Keystore password is required
            // to access Keystore
            char[] pass = ("123456").toCharArray();
  
            // creating and initializing
            // object of InputStream
            InputStream is
                = new FileInputStream(
                    "f:/java/private key.store");
  
            // initializing keystore object
            sr.load(is, pass);
  
            // getting the type of default keystore
            // using getDefaultType() method
            String type
                = sr.getDefaultType();
  
            // display the result
            System.out.println(
                "type of default"
                + " keystore entry : "
                + type);
        }
  
        catch (NoSuchAlgorithmException e) {
  
            System.out.println("Exception thrown : " + e);
        }
        catch (NullPointerException e) {
  
            System.out.println("Exception thrown : " + e);
        }
        catch (KeyStoreException e) {
  
            System.out.println("Exception thrown : " + e);
        }
        catch (FileNotFoundException e) {
  
            System.out.println("Exception thrown : " + e);
        }
        catch (IOException e) {
  
            System.out.println("Exception thrown : " + e);
        }
        catch (CertificateException e) {
  
            System.out.println("Exception thrown : " + e);
        }
    }
}

chevron_right


Output:

Example 2: With out loading keystore

filter_none

edit
close

play_arrow

link
brightness_4
code

// Java program to demonstrate getDefaultType() method
  
import java.security.*;
import java.security.cert.*;
import java.util.*;
import java.io.*;
  
public class GFG {
    public static void main(String[] argv)
    {
        try {
  
            // creating the object of KeyStore
            // and getting instance
            // By usng getInstance() method
            KeyStore sr = KeyStore.getInstance("JKS");
  
            // Keystore password is required
            // to access Keystore
            char[] pass = ("123456").toCharArray();
  
            // creating and initializing
            // object of InputStream
            InputStream is
                = new FileInputStream(
                    "f:/java/private key.store");
  
            // initializing keystore object
            // sr.load(is, pass);
  
            // getting the type of default keystore
            // using getDefaultType() method
            String type
                = sr.getDefaultType();
  
            // display the result
            System.out.println(
                "type of default keystore entry : "
                + type);
        }
        catch (FileNotFoundException e) {
  
            System.out.println("Exception thrown : " + e);
        }
        catch (NullPointerException e) {
  
            System.out.println("Exception thrown : " + e);
        }
        catch (KeyStoreException e) {
  
            System.out.println("Exception thrown : " + e);
        }
    }
}

chevron_right


Output:

Reference: https://docs.oracle.com/javase/9/docs/api/java/security/KeyStore.html#getDefaultType–

GeeksforGeeks has prepared a complete interview preparation course with premium videos, theory, practice problems, TA support and many more features. Please refer Placement 100 for details




My Personal Notes arrow_drop_up

Check out this Author's contributed articles.

If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.

Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.



Improved By : Code_Mech