java - 摩尔斯电码到英语

Question

我现在的问题是让“莫尔斯电码转英语”工作。将英语转换为莫尔斯的第一部分工作完美。我知道之前有人问过这个问题，但我不知道我做错了什么。我知道我需要在某个地方进行拆分，但我不确定将其放在代码中的什么位置。现在莫尔斯到英语的部分甚至不会转换一个符号。任何帮助将不胜感激。

import java.util.Scanner;

public class MorseCode2  {
    public static void main ( String [] args )
    {
        Scanner input = new Scanner( System.in );
        System.out.print( "Would you like to convert English to Morse (yes or no)? " );
        String answer = input.nextLine();
        if( answer.equals( "yes" ) )
        {
        System.out.println( "Please enter the text you want to translate into Morse code: " );
        String english = input.nextLine();
        System.out.println( stringToMorse( english ) );
        }

        if (answer.equalsIgnoreCase( "no" ) )
        {
            System.out.print( "Morse to English? " );
            String answer2 = input.nextLine();
            if (answer2.equalsIgnoreCase( "yes" ) )
            {
                System.out.println( "Please enter the Morse code you want to translate into English: " );
                String code = input.nextLine();
                System.out.println( stringToEnglish( code ) );
            }
        }
    }

    public static String encode (String toEncode)
    {
        String morse = toEncode;

        if (toEncode.equalsIgnoreCase("a"))
            morse = ".-";
        if (toEncode.equalsIgnoreCase("b"))
            morse = "-...";
        if (toEncode.equalsIgnoreCase("c"))
            morse = "-.-.";
        if (toEncode.equalsIgnoreCase("d"))
            morse = "-..";
        if (toEncode.equalsIgnoreCase("e"))
            morse = ".";
        if (toEncode.equalsIgnoreCase("f"))
            morse = "..-.";
        if (toEncode.equalsIgnoreCase("g"))
            morse = "--.";
        if (toEncode.equalsIgnoreCase("h"))
            morse = "....";
        if (toEncode.equalsIgnoreCase("i"))
            morse = "..";
        if (toEncode.equalsIgnoreCase("j"))
            morse = ".---";
        if (toEncode.equalsIgnoreCase("k"))
            morse = "-.-";
        if (toEncode.equalsIgnoreCase("l"))
            morse = ".-..";
        if (toEncode.equalsIgnoreCase("m"))
            morse = "--";
        if (toEncode.equalsIgnoreCase("n"))
            morse = "-.";
        if (toEncode.equalsIgnoreCase("o"))
            morse = "---";
        if (toEncode.equalsIgnoreCase("p"))
            morse = ".--.";
        if (toEncode.equalsIgnoreCase("q"))
            morse = "--.-";
        if (toEncode.equalsIgnoreCase("r"))
            morse = ".-.";
        if (toEncode.equalsIgnoreCase("s"))
            morse = "...";
        if (toEncode.equalsIgnoreCase("t"))
            morse = "-";
        if (toEncode.equalsIgnoreCase("u"))
            morse = "..-";
        if (toEncode.equalsIgnoreCase("v"))
            morse = "...-";
        if (toEncode.equalsIgnoreCase("w"))
            morse = ".--";
        if (toEncode.equalsIgnoreCase("x"))
            morse = "-..-";
        if (toEncode.equalsIgnoreCase("y"))
            morse = "-.--";
        if (toEncode.equalsIgnoreCase("z"))
            morse = "--..";
        if (toEncode.equalsIgnoreCase("0"))
            morse = "-----";
        if (toEncode.equalsIgnoreCase("1"))
            morse = ".----";
        if (toEncode.equalsIgnoreCase("2"))
            morse = "..---";
        if (toEncode.equalsIgnoreCase("3"))
            morse = "...--";
        if (toEncode.equalsIgnoreCase("4"))
            morse = "....-";
        if (toEncode.equalsIgnoreCase("5"))
            morse = ".....";
        if (toEncode.equalsIgnoreCase("6"))
            morse = "-....";
        if (toEncode.equalsIgnoreCase("7"))
            morse = "--...";
        if (toEncode.equalsIgnoreCase("8"))
            morse = "---..";
        if (toEncode.equalsIgnoreCase("9"))
            morse = "----.";
        if (toEncode.equalsIgnoreCase("."))
            morse = ".-.-";
        if (toEncode.equalsIgnoreCase(","))
            morse = "--..--";
        if (toEncode.equalsIgnoreCase("?"))
            morse = "..--..";

        return morse;
    }

    public static String decode (String toEncode) {
        String morse = toEncode;

        if (toEncode.equalsIgnoreCase(".-"))
            morse = "a";
        if (toEncode.equalsIgnoreCase("-..."))
            morse = "b";
        if (toEncode.equalsIgnoreCase("-.-."))
            morse = "c";
        if (toEncode.equalsIgnoreCase("-.."))
            morse = "d";
        if (toEncode.equalsIgnoreCase("."))
            morse = "e";
        if (toEncode.equalsIgnoreCase("..-."))
            morse = "f";
        if (toEncode.equalsIgnoreCase("--."))
            morse = "g";
        if (toEncode.equalsIgnoreCase("...."))
            morse = "h";
        if (toEncode.equalsIgnoreCase(".."))
            morse = "i";
        if (toEncode.equalsIgnoreCase(".---"))
            morse = "j";
        if (toEncode.equalsIgnoreCase("-.-"))
            morse = "k";
        if (toEncode.equalsIgnoreCase(".-.."))
            morse = "l";
        if (toEncode.equalsIgnoreCase("--"))
            morse = "m";
        if (toEncode.equalsIgnoreCase("-."))
            morse = "n";
        if (toEncode.equalsIgnoreCase("---"))
            morse = "o";
        if (toEncode.equalsIgnoreCase(".--."))
            morse = "p";
        if (toEncode.equalsIgnoreCase("--.-"))
            morse = "q";
        if (toEncode.equalsIgnoreCase(".-."))
            morse = "r";
        if (toEncode.equalsIgnoreCase("..."))
            morse = "s";
        if (toEncode.equalsIgnoreCase("-"))
            morse = "t";
        if (toEncode.equalsIgnoreCase("..-"))
            morse = "u";
        if (toEncode.equalsIgnoreCase("...-"))
            morse = "v";
        if (toEncode.equalsIgnoreCase(".--"))
            morse = "w";
        if (toEncode.equalsIgnoreCase("-..-"))
            morse = "x";
        if (toEncode.equalsIgnoreCase("-.--"))
            morse = "y";
        if (toEncode.equalsIgnoreCase("--.."))
            morse = "z";
        if (toEncode.equalsIgnoreCase("-----"))
            morse = "0";
        if (toEncode.equalsIgnoreCase(".----"))
            morse = "1";
        if (toEncode.equalsIgnoreCase("..---"))
            morse = "2";
        if (toEncode.equalsIgnoreCase("...--"))
            morse = "3";
        if (toEncode.equalsIgnoreCase("....-"))
            morse = "4";
        if (toEncode.equalsIgnoreCase("....."))
            morse = "5";
        if (toEncode.equalsIgnoreCase("-...."))
            morse = "6";
        if (toEncode.equalsIgnoreCase("--..."))
            morse = "7";
        if (toEncode.equalsIgnoreCase("---.."))
            morse = "8";
        if (toEncode.equalsIgnoreCase("----."))
            morse = "9";
        if (toEncode.equalsIgnoreCase("|"))
            morse = "";

        return morse;
    }

    public static String stringToMorse( String text )
    {

        String newText = "";
        String selectedChar;
        String convertedChar;
        for (int i = 0; i < text.length(); i++)
        {

            //Select the next character
            selectedChar = text.charAt(i) + "";

            // Convert the character
            convertedChar = encode(selectedChar);

            if (convertedChar.equals(" ")) // " " separates each word represented in english code
            {
                newText = newText + "| ";
            }
            // Add the converted text, and add a space
            else
            {
                newText = newText + convertedChar;
                if (!convertedChar.equals(" "))
                {
                    newText = newText + " ";
                }
            }
        }

        return newText;
    }

    public static String stringToEnglish( String text )
    {
       String newMorse = ""; //sets string for newMorse
       String selectedMorse; //sets string for selectedMorse
       String convertedMorse; //sets string for convertedMorse
       for (int i = 0; i < text.length(); i++)
       {

           //Select the next character
           selectedMorse = text.charAt(i) + "";

           // Convert the character
           convertedMorse = encode(selectedMorse);

           if (convertedMorse.equals("| ")) // "|" separates each word represented in morse code
           {
               newMorse = newMorse + " ";
           }
           // Add the converted text, and add a space
           else
           {
               newMorse = newMorse + convertedMorse;
               if (!convertedMorse.equals(" "))
               {
                   newMorse = newMorse + " ";
               }
           }
       }

       return newMorse;
    }

}

Answer 1

你可能想要这样的东西:

public static String stringToEnglish( String text )
{
   String newEnglish = ""; //sets string for newEnglish
   String selectedEnglish; //sets string for selectedEnglish
   String convertedEnglish; //sets string for convertedEnglish
   String[] morseChars = text.split(" ");
   for (int i = 0; i < morseChars.length; i++)
   {
       //Select the next Morse character
       selectedEnglish = morseChars[i];
       boolean endsWithWordSeparator = selectedEnglish.endsWith("|");
       if(endsWithWordSeparator) selectedEnglish = selectedEnglish.substring(0, selectedEnglish.length() - 1);
       // Convert the string
       convertedEnglish = decode(selectedEnglish);

       newEnglish = newEnglish + convertedEnglish;
       if (endsWithWordSeparator) 
       {
           newEnglish = newEnglish + " ";
       }
   }

   return newEnglish;
}