无法将摩尔斯语翻译成英语

Question

我有一个学校项目，我需要制作莫尔斯英语翻译器。我是 Java 方面的新手，所以我想知道您是否可以帮助我。问题是我不确定我应该在 while 循环中放置什么以将莫尔斯电码转换为英语。任何帮助，将不胜感激。谢谢^^

public static void main(String[]args){
    HashMap<Character,String> translations=new HashMap<Character,String>();
    translations.put('A', ".-");
    translations.put('B', "-...");
    translations.put('C', "-.-.");
    translations.put('D', "-..");
    translations.put('E', ".");
    translations.put('F', "..-.");
    translations.put('G', "--.");
    translations.put('H', "....");
    translations.put('I', "..");
    translations.put('J', ".---");
    translations.put('K', "-.-");
    translations.put('L', ".-..");
    translations.put('M', "--");
    translations.put('N', "-.");
    translations.put('O', "---");
    translations.put('P', ".--.");
    translations.put('Q', "--.-");
    translations.put('R', ".-.");
    translations.put('S', "...");
    translations.put('T', "-");
    translations.put('U', "..-");
    translations.put('V', "...-");
    translations.put('W', ".--");
    translations.put('X', "-..-");
    translations.put('Y', "-.--");
    translations.put('Z', "--..");
    translations.put('0', "-----");
    translations.put('1', ".----");
    translations.put('2', "..---");
    translations.put('3', "...--");
    translations.put('4', "....-");
    translations.put('5', ".....");
    translations.put('6', "-....");
    translations.put('7', "--...");
    translations.put('8', "---..");
    translations.put('9', "----.");
    translations.put(' ', "   ");
    
    HashMap<String, Character> reversedHashMap = new HashMap<String, Character>();
    for (char key : translations.keySet()){
        reversedHashMap.put(translations.get(key), key);
    }Scanner scan=new Scanner(System.in);
    System.out.println("Welcome to the translator. Type 1 for English to Morse or type 2 for Morse to English: ");
    int choice=scan.nextInt();
    if(choice==1)
       engToMorse(translations);
    else if(choice==2)
        morseToEng(reversedHashMap);
    else{
        System.out.println("Invalid Input!");
    }
}
public static void engToMorse(HashMap<Character,String> translations){
    
    Scanner scan=new Scanner(System.in);
    System.out.println("Please enter the sentence that you want to translate to Morse here: ");
    String sentence=scan.nextLine().toUpperCase();
    int i=0;
    while(i<sentence.length()){
        System.out.printf(translations.get(sentence.charAt(i)));
        i++;
    }
    
    }
    public static void morseToEng(HashMap<String,Character> reversedHashMap){
    
    Scanner scan=new Scanner(System.in);
    System.out.println("Please enter the morse code that you want to translate to english: ");
    String morse=scan.nextLine().toUpperCase();
    int i=0;
    while(i<morse.length()){
        System.out.print();
        i++;
    }
   
    }

Answer 1

读取输入后，将输入字符串拆分 space。对于每个元素，查找摩尔斯电码（键）到字符（值）的映射并打印值。

    for (String singleCode : morse.split(" ")) {
        System.out.print(reversedHashMap.get(singleCode));
    }

示例输入输出

Welcome to the translator. Type 1 for English to Morse or type 2 for Morse to English: 
2
Please enter the morse code that you want to translate to english: 
... -- ...
SMS

Answer 2

你可以简单地一个一个地获取莫尔斯电码，每行获取一个莫尔斯电码，处理它并把它连接成结果字符串，如果你想在一行中获取多个莫尔斯电码，在它们之间使用分隔符然后根据该拆分器拆分字符串，例如 #.

所以你会得到--#.--#..-- 然后将其拆分为：

for (String singleMorse : morse.split("#")) {
        System.out.print(reversedHashMap.get(singleCode));
    }

注意：因为你的摩尔斯电码中有SPACE，使用[=17以外的分离器更简单=]SPACE

无法将摩尔斯语翻译成英语

Unable to translate morse to english

java

morse-code