AlgorithmParameterGenerator getAlgorithm() method in Java with Examples

The getAlgorithm() method of java.security.AlgorithmParameterGenerator class is used to return the standard name of the algorithm this parameter generator is associated with.

Syntax:

public final String getAlgorithm()

Return Value: This method returns the string name of the algorithm.

Below are the examples to illustrate the getAlgorithm() method:

Example 1: For Algorithm DSA

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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
            // AlgorithmParameterGenerator
            // and getting instance
            // using getInstance() method
            AlgorithmParameterGenerator
                sr
                = AlgorithmParameterGenerator
                      .getInstance("DSA");
  
            // initializing the AlgorithmParameterGenerator
            // with 1024 using initialize() method
            sr.init(1024);
  
            // genrating the Parameters
            // using getAlgorithm() method
            String algo = sr.getAlgorithm();
  
            // printing the string algo
            System.out.println("Algorithm : " + algo);
        }
  
        catch (NoSuchAlgorithmException e) {
  
            System.out.println("Exception thrown : " + e);
        }
        catch (ProviderException e) {
  
            System.out.println("Exception thrown : " + e);
        }
    }
}

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Output:


Algorithm : DSA





Example 2: For Algorithm DiffieHellman











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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 


            // AlgorithmParameterGenerator 


            // and getting instance 


            // using getInstance() method 


            AlgorithmParameterGenerator 


                sr 


                = AlgorithmParameterGenerator 


                      .getInstance("DiffieHellman"); 


  


            // initializing the AlgorithmParameterGenerator 


            // with 1024 using initialize() method 


            sr.init(1024); 


  


            // genrating the Parameters 


            // using getAlgorithm() method 


            String algo = sr.getAlgorithm(); 


  


            // printing the string algo 


            System.out.println("Algorithm : " + algo); 


        } 


  


        catch (NoSuchAlgorithmException e) { 


  


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


        } 


        catch (ProviderException e) { 


  


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


        } 


    } 


} 



















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Output:


Algorithm : DiffieHellman






          
          
          
          

            

    

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