The getProvider() method of java.security.Provider.Service class is used to return the provider of this provider service object.
Syntax:
public final Provider getProvider()
Return Value: This method returns the provider of this provider service object.
Below are the examples to illustrate the getProvider() method:
Example 1:
// Java program to demonstrate // getProvider() 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 Provider of Provider.Service object
// by using getProvider() method
Provider name = service.getProvider();
// display the result
System.out.println( "Provider : " + name);
}
catch (NoSuchAlgorithmException e) {
System.out.println( "Exception thrown : " + e);
}
catch (NoSuchProviderException e) {
System.out.println( "Exception thrown : " + e);
}
}
} |
Output:
Provider : SUN version 1.8
Example 2:
// Java program to demonstrate // getProvider() 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 Provider of Provider.Service object
// by using getProvider() method
Provider name = service.getProvider();
// display the result
System.out.println( "Provider : " + name);
}
catch (NoSuchAlgorithmException e) {
System.out.println( "Exception thrown : "
+ e);
}
}
} |
Output:
Provider : SUN version 1.8
Reference: https://docs.oracle.com/javase/9/docs/api/java/security/Provider.Service.html#getProvider–