import java.security.MessageDigest;

public class EncryptExample {
public static void main(String[] args) {
String password = "secret";
String algorithm = "SHA";

byte[] plainText = password.getBytes();

MessageDigest md = null;

try {
md = MessageDigest.getInstance(algorithm);
} catch (Exception e) {
e.printStackTrace();
}

md.reset();
md.update(plainText);
byte[] encodedPassword = md.digest();

StringBuilder sb = new StringBuilder();
for (int i = 0; i < encodedPassword.length; i++) {
if ((encodedPassword[i] & 0xff) < 0x10) {
sb.append("0");
}

sb.append(Long.toString(encodedPassword[i] & 0xff, 16));
}

System.out.println("Plain    : " + password);
System.out.println("Encrypted: " + sb.toString());
}
}