Java Signature getAlgorithm()用法及代碼示例

java.security.Signature類的getAlgorithm()方法用於返回此簽名對象的算法名稱。

用法:

public final String getAlgorithm()

返回值：此方法返回此簽名對象的算法名稱。

下麵是說明getAlgorithm()方法的示例：

範例1：

// 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); 
        } 
    } 
}

輸出：

Algorithm:SHA1withDSA

範例2：

// 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); 
        } 
    } 
}

輸出：

Algorithm:NONEwithDSA

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 Java Signature getAlgorithm() method 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。