这个 getAlgorithm() 方法 JAVA安全安全随机 类用于返回此SecureRandom对象实现的算法的名称。 语法:
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public String getAlgorithm()
返回值: 此方法返回算法名称,如果无法确定算法名称,则返回unknown。 下面是一些例子来说明 getAlgorithm() 方法: 例1:
JAVA
// 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 SecureRandom SecureRandom sr = SecureRandom.getInstance( "SHA1PRNG" ); // getting 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); } } } |
输出:
Algorithm: SHA1PRNG
例2:
JAVA
// 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 SecureRandom SecureRandom sr = SecureRandom.getInstance( "TAJMAHAL" ); // getting the Algorithm // by using method getAlgorithm() String algo = sr.getAlgorithm(); // printing the string algo System.out.println(algo); } catch (NoSuchAlgorithmException e) { System.out.println( "Exception thrown : " + e); } } } |
输出:
Exception thrown : java.security.NoSuchAlgorithmException: TAJMAHAL SecureRandom not available
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