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Java Signature getAlgorithm() method with Examples
  • Last Updated : 04 Dec, 2018

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:



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// 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");
  
            // geting 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);
        }
    }
}

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Output:

Algorithm: SHA1withDSA

Example 2:

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// 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");
  
            // geting 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);
        }
    }
}

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Output:

Algorithm: NONEwithDSA

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