Java Signature getAlgorithm() method with Examples

Java Signature getAlgorithm() method with Examples

Last Updated : 06 Jun, 2021

The getAlgorithm() method of java.security.Signature class is used to return the name of the algorithm for this signature object.
Syntax:

public final String getAlgorithm()

Return Value: This method returns the name of the algorithm for this signature object.
Below are the examples to illustrate the getAlgorithm() method:
Example 1:

Java

// Java program to demonstrate
// getAlgorithm() 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");

            // getting the Algorithm
            // by using method getAlgorithm()
            String algo = sr.getAlgorithm();

            // printing the string algo
            System.out.println("Algorithm: " + algo);
        }

        catch (NoSuchAlgorithmException e) {

            System.out.println("Exception thrown : " + e);
        }
    }
}

Output:

Algorithm: SHA1withDSA

Example 2:

Java

// Java program to demonstrate
// getAlgorithm() 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("NONEwithDSA");

            // getting the Algorithm
            // by using method getAlgorithm()
            String algo = sr.getAlgorithm();

            // printing the string algo
            System.out.println("Algorithm: " + algo);
        }

        catch (NoSuchAlgorithmException e) {

            System.out.println("Exception thrown : " + e);
        }
    }
}

Output:

Algorithm: NONEwithDSA

Java Signature getAlgorithm() method with Examples

rohitprasad3

Improve

Article Tags :

Practice Tags :

Similar Reads

Java Signature getInstance() method with Examples

getInstance(String algorithm) The getInstance() method of java.security.Provider class is used to return a Signature object that implements the specified signature algorithm. This method traverses the list of registered security Providers, starting with the most preferred Provider. A new Signature o

SecureRandom getAlgorithm() method in Java with Examples

The getAlgorithm() method of java.security.SecureRandom class is used to return the name of the algorithm implemented by this SecureRandom object.Syntax: public String getAlgorithm() Return Value: This method returns the name of the algorithm or unknown if the algorithm name cannot be determined.Bel

URL getAuthority() method in Java with Examples

The getAuthority() function is a part of URL class. The function getAuthority() returns the authority of a specified URL. The Authority part of the URL is the host name and the port of the URL. Function Signature public String getAuthority() Syntax url.getAuthority() Parameter: This function does no

URL getPort() method in Java with Examples

The getPort() function is a part of URL class. The function getPort() returns the port of a specified URL. The function returns the port number or -1 if the port is not set Function Signature public int getPort() Syntax url.getPort() Return Type: The function returns Integer Type Parameter: This fun

URI getAuthority() method in Java with Examples

The getAuthority() function is a part of URI class. The function getAuthority() returns the authority of a specified URI. The Authority part of the URL is the host name and the port of the URI. Function Signature public String getAuthority() Syntax: url.getAuthority() Parameter This function does no

Provider.Service getAlgorithm() method in Java with Examples

The getAlgorithm() method of java.security.Provider.Service class is used to return the standard name of the algorithm this Provider.Service is associated with. Syntax: public final String getAlgorithm() Return Value: This method returns name of the algorithm. Below are the examples to illustrate th

Java signum() method with Examples

The Math.signum() method is a part of the java.lang.Math package. This method returns the sign function of a value passed to it as an argument. In this article, we are going to discuss how this method works for regular values and for special cases such as infinity and NaN.Special Cases:If the argume

MessageDigest getAlgorithm() method in Java with Examples

The method getAlgorithm() of java.security.MessageDigest class is used to return the standard name of the algorithm this message digest is associated with. Syntax: public final String getAlgorithm() Return Value: This method returns the algorithm used in message digest. Below are the examples to ill

Optional get() method in Java with examples

The get() method of java.util.Optional class in Java is used to get the value of this Optional instance. If there is no value present in this Optional instance, then this method throws NullPointerException. Syntax: public T get() Parameters: This method do not accept any parameter. Return value: Thi

OptionalInt getAsInt() method in Java with examples

OptionalInt help us to create an object which may or may not contain a int value. The getAsInt() method returns value If a value is present in OptionalInt object, otherwise throws NoSuchElementException. Syntax: public int getAsInt() Parameters: This method accepts nothing. Return value: This method