Java KeyFactory getAlgorithm()用法及代碼示例

java.security.KeyFactory類的getAlgorithm()方法用於獲取與此KeyFactory關聯的算法的名稱。

用法:

public final String getAlgorithm()

返回值：此方法返回與此KeyFactory關聯的算法的名稱。

以下示例說明了getAlgorithm()方法。

示例1:

// Java program to demonstrate 
// getAlgorithm()  method 
  
import java.security.*; 
import java.util.*; 
import java.security.spec.*; 
  
public class GFG1 { 
    public static void main(String[] argv) throws Exception 
    { 
        try { 
  
            // creating object of keyfactory 
            KeyFactory keyFactory = KeyFactory.getInstance("DSA"); 
  
            // getting the algortihm of KeyFactory 
            // using getAlgorithm() method 
            String algo = keyFactory.getAlgorithm(); 
  
            // printing the algorithm 
            System.out.println("Algortihm : " + algo); 
        } 
  
        catch (NoSuchAlgorithmException e) { 
  
            System.out.println("Exception thrown : " + e); 
        } 
        catch (ProviderException e) { 
  
            System.out.println("Exception thrown : " + e); 
        } 
    } 
}

輸出：

Algortihm : DSA

示例2:

// Java program to demonstrate 
// getAlgorithm()  method 
  
import java.security.*; 
import java.util.*; 
import java.security.spec.*; 
  
public class GFG1 { 
    public static void main(String[] argv) throws Exception 
    { 
        try { 
  
            // creating object of keyfactory 
            KeyFactory keyFactory = KeyFactory 
                                        .getInstance("DiffieHellman"); 
  
            // getting the algortihm of KeyFactory 
            // using getAlgorithm() method 
            String algo = keyFactory.getAlgorithm(); 
  
            // printing the algorithm 
            System.out.println("Algortihm : " + algo); 
        } 
  
        catch (NoSuchAlgorithmException e) { 
  
            System.out.println("Exception thrown : " + e); 
        } 
        catch (ProviderException e) { 
  
            System.out.println("Exception thrown : " + e); 
        } 
    } 
}

輸出：

Algortihm : DiffieHellman

相關用法

注：本文由純淨天空篩選整理自RohitPrasad3大神的英文原創作品 KeyFactory getAlgorithm() method in Java with Examples。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。