Question

我正在尝试创建一个gui应用程序来读取英文用户输入并转换为莫尔斯（http://ascii-table.com/morse-code.php）。到目前为止，我已经触及了该计划的基本部分。我的问题是;阅读莫尔斯的最佳方式是什么？我应该创建一个文本文件来导入莫尔斯字母，还是我应该在程序中声明每个字母进行翻译？接下来的问题是我将如何做到这一点？如果可能请参考教程。谢谢你的时间。

Answer 1

由于莫尔斯电码不太可能改变，因此将字符映射硬编码为代码字符串是一个有效的选择：

private static Map<Character,String> charToCode = new HashMap<Character,String>();
{
    charToCode.put('A', ".-");
    charToCode.put('B', "-...");
    ...
    charToCode.put('Z', "--..");
}

此地图允许您将消息转换为一次代码一个字符：

为结果制作StringBuilder
一次浏览输入一个字符的字符。您可以使用charAt(i)作为
将字符转换为大写
使用charToCode.get(upperChar)查找字符的代码表示
将表示附加到StringBuilder;
循环结束后，将StringBuilder转换为String，然后将其放在标签上。

Answer 2

您可以在外面维护两个文件。一个有从Letters到Morse Code的映射，还有从Morse Code到Letters的映射。然后，您可以通过从相应文件中进行查找来构建转换器。

Answer 3

您可以从用户读取输入并在运行时将它们与程序中存储的预定义字符和数字进行比较或者您可以使用FileReader输入文件并阅读它

但是，这是您要为运行时间比较执行的逻辑

 char[] english = { 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l',
             'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 
             'y', 'z', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0',
             ',', '.', '?' };   //Defining a Character Array of the English Letters numbers and Symbols so that we can compare and convert later 

     String[] morse = { ".-", "-...", "-.-.", "-..", ".", "..-.", "--.", "....", "..", 
                ".---", "-.-", ".-..", "--", "-.", "---", ".---.", "--.-", ".-.",
                "...", "-", "..-", "...-", ".--", "-..-", "-.--", "--..", ".----",
                "..---", "...--", "....-", ".....", "-....", "--...", "---..", "----.",
                "-----", "--..--", ".-.-.-", "..--.." };

System.out.println("-->Enter the Sentence that you want to Transmit Using the Morse Code ");
        System.out.print("->");
        sentence = br.readLine();
        System.out.println("");
        sentence = sentence.toLowerCase(); //Because morse code is defined only for the lower case letters and the numbers and the Symbols will remain the Same
        char[] morsec = sentence.toCharArray();
        for(int i = 0; i < morsec.length;i++)  //The loop will run till i is less than the number of characters in the Sentence because Every Character needs to Be Converted into the Respective Morse Code 
        {//For Every Letter in the User Input Sentence
            for(int j = 0;j<english.length;j++)   //For Every Character in the morsec array we will have to traverse the entire English Array and find the match so that it can be represented 
            {
                if(english[j] == morsec[i])  //If the Character Present in English array is equal to the character present in the Morsec array then Only Execute 
                {//Always remember that the condition in the Inner loop will be the first to be Equated in the If Statement because that will change until the characters match 
                    answer = answer + morse[j] + " ";  //After Every Letter is generated in the Morse Code we will give a Space 
                }  //Since the Letters in the English char and the symbols present in the morse array are at the Same Index 
            }
        }
        System.out.println("-->The Morse Code Translation is:- ");
        System.out.Println(answer);

摩尔斯电码应用程序（JAVA Gui）

3 个答案: