java字符串转hash如何实现

?Java?,????String??hashCode()???????????????????????(int),??????????????????????:

public class StringToHash {
    public static void main(String[] args) {
        String input = "Hello, world!";
        int hash = input.hashCode();
        System.out.println("Hash code of the string '" + input + "' is: " + hash);
    }
}

??????,????????,??????????????????????,???????????(?????????????),??????,Java?hashCode()????????????????????

?????????????????,??????Java???MessageDigest?,???SHA-256?SHA-512???????????????MessageDigest???????????:

import java.nio.charset.StandardCharsets;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

public class StringToHash {
    public static void main(String[] args) {
        String input = "Hello, world!";
        String hash = calculateHash(input, "SHA-256");
        System.out.println("Hash code of the string '" + input + "' using SHA-256 is: " + hash);
    }

    private static String calculateHash(String input, String algorithm) {
        try {
            MessageDigest messageDigest = MessageDigest.getInstance(algorithm);
            byte[] hashBytes = messageDigest.digest(input.getBytes(StandardCharsets.UTF_8));
            StringBuilder sb = new StringBuilder();
            for (byte b : hashBytes) {
                sb.append(String.format("x", b));
            }
            return sb.toString();
        } catch (NoSuchAlgorithmException e) {
            throw new RuntimeException("Failed to calculate hash", e);
        }
    }
}

??????,?????SHA-256????????????????????calculateHash?????????????????,??"SHA-512"?