OnJava8-Examples/annotations/PasswordUtils.java
2016-01-25 18:05:55 -08:00

24 lines
800 B
Java

// annotations/PasswordUtils.java
// (c)2016 MindView LLC: see Copyright.txt
// We make no guarantees that this code is fit for any purpose.
// Visit http://mindviewinc.com/Books/OnJava/ for more book information.
import java.util.*;
public class PasswordUtils {
@UseCase(id = 47, description =
"Passwords must contain at least one numeric")
public boolean validatePassword(String passwd) {
return (passwd.matches("\\w*\\d\\w*"));
}
@UseCase(id = 48)
public String encryptPassword(String passwd) {
return new StringBuilder(passwd).reverse().toString();
}
@UseCase(id = 49, description =
"New passwords can't equal previously used ones")
public boolean checkForNewPassword(
List<String> prevPasswords, String passwd) {
return !prevPasswords.contains(passwd);
}
}