java - 调用打印方法(数组和循环)

Question

public class Encryption {
private static final int[] encrypt = {2, 9, 3, 4, 6, 8, 1, 0};
private static final int[] decrypt = new int[8];
private static final int minLength = 10;

String encrypt (String password)    {
    if(password.length()<minLength) {
        return password;

    }   else {
        char[] passArray = password.toCharArray();

        for (int i = 0; i < encrypt.length; i++)    {
            passArray[i] = (char) (passArray[i]);
            }
            return String.valueOf(passArray);
    }
}

String decrypt (String password)    {
    if (password.length()<minLength)    {
        return password;

    }   else {
        char[] arrayDecrypted = password.toCharArray();
        for (int i = 0; i < arrayDecrypted.length; i++) {
            arrayDecrypted[i] = (char) (arrayDecrypted[i]);
        }
        return String.valueOf(arrayDecrypted);
    }
}

//-------------------------------------------- ------------------------------

import csci130.*;

public class Driver {
public static void main(String args[]){

Encryption pass = new Encryption();

System.out.println("Please enter a password");
String name = KeyboardReader.readLine();

System.out.println("Encrypted Password:  " + pass.encrypt(name));
System.out.println("Decrypted Password:  " + pass.decrypt(name));

  }
}

当我尝试调用我的方法 Encrypt 和 Decrypt 并让用户输入密码时，它会编译，但只打印出我输入的内容。它假设排列输入的密码更改索引，而不是在解密时将其改回.以上是两个不同的类 Encryption & Driver。任何帮助将不胜感激。

Answer 1

如果您的密码少于 10，您的 encrypt() 会按原样返回它。

否则它会遍历您的密码字符并执行以下操作:

passArray[i] = (char) (passArray[i]);

我觉得很明显，这条线没有效果。