Java，解密文件的问题

Question

我的代码无法正常工作，我正在尝试解密消息，但我得到类似 , 0, 3, ,, , 5, 7, <, ;, , ;, 9, ,, (, 4, , , -, ,, ), (, , �, ￸] 的信息

请帮我看看我哪里错了:

public class WorkInFile {
    public static void main(String[] args) throws IOException {
        FileInputStream encoded=new FileInputStream("C://Games//encoded.txt");//contains ƪÄÖØÐîÃÜÙäÌÊÛÓÕÒáÄßÕÍǨ³¾êÉàÝâÝãƒâÝäìÚÇäÖçÅáâÄÄÌØÐƭèÑØǑÚÚŲã¨
            FileInputStream coded = new FileInputStream("C://Games//code.txt");//contains icbakwtbxxvcelsmjpbochqlltowxhlhvhyywsyqraargpdsycikmgeakonpiwcqmofwms
            String text = encoded.toString();
            String text2=coded.toString();
            char[] chars=text.toCharArray();
            char[] chars2=text2.toCharArray();

            int index=0;
            char[] res=new char[text.length()];
            for (char aChar : chars) {
                for (char c : chars2) {
                    res[index] = (char) (aChar - c);
                }
                index++;
            }
            String result= Arrays.toString(res);
            System.out.println(result);
    }
}

Answer 1

Files.readAllBytes(Paths.get("file-path"))

Java 现在提供了一种漂亮的单行代码来读取文件内容。

以下是将文件内容作为字符串获取的工作代码:

// WorkInFile.java

import java.nio.file.*;

public class WorkInFile {
    public static void main(String[] args) {
        try {
            String text = new String(Files.readAllBytes(Paths.get("encoded.txt")));
            System.out.println("Encoded.txt = " + text);

            String text2 = new String(Files.readAllBytes(Paths.get("code.txt")));
            System.out.println("code.txt = " + text2);

            } catch (Exception ex) {
                System.out.println(ex.toString());
            }
    }
}