The toString() method of java.security.Provider.Service class returns a string representation of this provider service.
Syntax:
public String toString()
Return Value: This method provides string representation of this provider service.
Below are the examples to illustrate the toString() method:
Example 1:
Java
// Java program to demonstrate // toString() 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 string representation // of Provider.Service object // by using toString() method String value = service.toString(); // display the result System.out.println("String representation : " + value); } catch (NoSuchAlgorithmException e) { System.out.println("Exception thrown : " + e); } catch (NoSuchProviderException e) { System.out.println("Exception thrown : " + e); } } } |
String representation : SUN: Signature.SHA1withDSA -> sun.security.provider.DSA$SHA1withDSA aliases: [DSA, DSS, SHA/DSA, SHA-1/DSA, SHA1/DSA, SHAwithDSA, DSAWithSHA1, OID.1.2.840.10040.4.3, 1.2.840.10040.4.3, 1.3.14.3.2.13, 1.3.14.3.2.27] attributes: {ImplementedIn=Software, KeySize=1024, SupportedKeyClasses=java.security.interfaces.DSAPublicKey|java.security.interfaces.DSAPrivateKey}
Example 2:
Java
// Java program to demonstrate // toString() 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 a string representation // of Provider.Service object // by using toString() method String value = service.toString(); // display the result System.out.println("String representation : " + value); } catch (NoSuchAlgorithmException e) { System.out.println("Exception thrown : " + e); } } } |
String representation : SUN: MessageDigest.MD5 -> sun.security.provider.MD5 attributes: {ImplementedIn=Software}
Reference: https://docs.oracle.com/javase/9/docs/api/java/security/Provider.Service.html#toString–