Java Signature toString()用法及代碼示例

java.security.Signature類的toString()方法用於返回簽名對象的字符串表示形式，提供包含對象狀態和所用算法名稱的信息。

用法:

public String toString()

返回值：此方法返回此簽名對象的字符串表示形式。

下麵是說明toString()方法的示例：

範例1：

// Java program to demonstrate 
// toString() 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 String representation 
            // by using method toString() 
            String status = sr.toString(); 
  
            // printing the provider name 
            System.out.println("Status:" + status); 
        } 
  
        catch (NoSuchAlgorithmException e) { 
  
            System.out.println("Exception thrown:" + e); 
        } 
    } 
}

輸出：

Status:Signature object:SHA1withDSA

範例2：

// Java program to demonstrate 
// toString() 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 String representation 
            // by using method toString() 
            String status = sr.toString(); 
  
            // printing the provider name 
            System.out.println("Status:" + status); 
        } 
  
        catch (NoSuchAlgorithmException e) { 
  
            System.out.println("Exception thrown:" + e); 
        } 
    } 
}

輸出：

Status:Signature object: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 toString() 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。