The getClassName() method of java.security.Provider.Service class is used to return the specified name of the class utilizing its provider service.
Syntax:
public final String getClassName()
Return Value: This method returns specified name of the class.
Below are the examples to illustrate the getClassName() method:
Example 1:
// Java program to demonstrate// getClassName() method import java.security.*;import java.util.*; public class GFG1 { public static void main(String[] argv) { try { // creating the object of Signature Signature sr = Signature.getInstance( "SHA1withDSA", "SUN"); // getting the Provider of the Signature sr // by using method getProvider() Provider provider = sr.getProvider(); // getting the service of the provider // using getServices() method Provider.Service service = provider .getService("Signature", sr.getAlgorithm()); // getting class name of Provider.Service object // by using getClassName() method String name = service.getClassName(); // display the result System.out.println("Name of the class : " + name); } catch (NoSuchAlgorithmException e) { System.out.println("Exception thrown : " + e); } catch (NoSuchProviderException e) { System.out.println("Exception thrown : " + e); } }} |
Output:
Name of the class : sun.security.provider.DSA$SHA1withDSA
Example 2:
// Java program to demonstrate// getClassName() method import java.security.*;import java.util.*; public class GFG1 { public static void main(String[] argv) { try { // creating object of MessageDigest MessageDigest msd = MessageDigest.getInstance("MD5"); // getting the Provider of the Signature sr // by using method getProvider() Provider provider = msd.getProvider(); // getting the service of the provider // using getServices() method Provider.Service service = provider .getService("MessageDigest", msd.getAlgorithm()); // getting class name of Provider.Service object // by using getClassName() method String name = service.getClassName(); // display the result System.out.println("Name of the class : " + name); } catch (NoSuchAlgorithmException e) { System.out.println("Exception thrown : " + e); } }} |
Output:
Name of the class : sun.security.provider.MD5
Reference: https://docs.oracle.com/javase/9/docs/api/java/security/Provider.Service.html#getClassName–
