java - Java-为什么要打印“007F”？

以下代码旨在根据ASCII值解密“秘密” message :mmZ\\dxZmx]Zpgy

它应该打印出的内容是：“黎明时进攻！”

它当前显示的内容是：“在007F黎明时攻击007F？”

所以基本上，现在x = "007F"和
y = "?"

我需要x = SPACE或“”，并且y = "!"

谢谢你的时间。

public class decryption
{
    public static void main(String[] args)
    {
        String secretMessage = ":mmZ\\dxZmx]Zpgy";
        System.out.println(decryption(secretMessage, 88));
    }//end main

    public static String decryption(String s, int n)
    {
        int originalChar, decryptedChar;
        String message = "";
        char c;

        for(int i = 0; i < s.length(); ++i)
        {
            c = s.charAt(i);
            decryptedChar = (int)c;
            if(decryptedChar + n > 126)
               originalChar = 32 + ((decryptedChar + n) - 113);
                  else
                     {originalChar = decryptedChar + n;
                     c = c;}
            message = message + (char)originalChar;
        }//end for loop
        return message;
    }//end method
 }//end class

最佳答案

我修好了它。问题在于ASCII值> 126是不正确的，因此简单地减去95就可以解决解密问题！

public class decryption
{
public static void main(String[] args)
{
	String secretMessage = ":mmZ\\dxZmx]Zpgy";
	System.out.println(decryption(secretMessage, 88));
}//end main

public static String decryption(String s, int n)
{
	int originalChar, decryptedChar;
	String message = "";
	char c;

	for(int i = 0; i < s.length(); ++i)
	{
		c = s.charAt(i);
		decryptedChar = (int)c;
		if(decryptedChar + n > 126)
		   originalChar = 32 + ((decryptedChar + n) - 113);
			    else
				 {originalChar = decryptedChar + n;
				 c = c;}
      if (originalChar > 126)
      originalChar = originalChar - 95;
		message = message + (char)originalChar;
	}//end for loop
	return message;
}//end method
}//end class

关于java - Java-为什么要打印“007F”？，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/34216662/