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為什么當我嘗試從字符串中刪除不間斷空格時,我沒有得到預期的結果?

[英]Why when I try to remove non-breaking space from the string, I do not get the expected result?

我正在編寫代碼,首先使用移調,然后使用替換來創建密文。 到目前為止,我所做的一切都很好(沒有替代),除了從換位中獲得的文本包含不間斷的空格。

在線搜索后,解決方案之一是使用text.replace("\ ", "") ,我在我的代碼中使用了它,但是它不能幫助我刪除那些不間斷的空格。 您的幫助和建議將不勝感激。 我將Java與Netbeans IDE 7.4一起使用。

public class Cipher {

    static java.util.HashMap<String, String> HMOperators = new java.util.HashMap<String, String>();
    public static char[] Alphabet = {'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'};

    /**
     * @param args the command line arguments
     */

    static int locateindex = 0;

    static int[] WhiteSpaceSeparator = new int[100];

    public static String TCipher(String text) 
    {

        char[] stringtoCharArray = text.toCharArray();
        char ch;

        int loc = 0;
        for (int i = 0; i < text.length(); i++) 
        {
            ch = stringtoCharArray[i];

            if (Character.isSpaceChar(ch)) 
        {
            WhiteSpaceSeparator[loc] = i;
        }
        loc++;

        }

        text = text.trim();
        String PlainTextNoSpace = text.replaceAll(" ", "");

        char[] charArray = PlainTextNoSpace.toCharArray();

        int NewIndexArray[] = {2, 7, 5, 3, 0, 4, 6, 1};

        int Rows = 6;
        int Cols = 8;

        char TArray[][] = new char[Rows][Cols];

        int i = 0;


        for (int row = 0; row <= 5; row++) 
        {
             if (i == charArray.length) 
             {
                break;
             }
             TArray[row][NewIndexArray[0]] = charArray[i];  //@ column number index == 2

             if ((i + 1) == charArray.length) 
             {
                break;
             }
             TArray[row][NewIndexArray[1]] = charArray[i + 1]; //@ column number index == 7

             if ((i + 2) == charArray.length) 
             {
               break;
             }
             TArray[row][NewIndexArray[2]] = charArray[i + 2]; //5

             if ((i + 3) == charArray.length) 
             {
                break;
             }
             TArray[row][NewIndexArray[3]] = charArray[i + 3]; //3

            if ((i + 4) == charArray.length) 
            {
                break;
            }
            TArray[row][NewIndexArray[4]] = charArray[i + 4]; //0

            if ((i + 5) == charArray.length) 
            {
                break;
            }
            TArray[row][NewIndexArray[5]] = charArray[i + 5]; //4

           if ((i + 6) == charArray.length) 
            {
                break;
            }
           TArray[row][NewIndexArray[6]] = charArray[i + 6]; //6

            if ((i + 7) == charArray.length) 
            {
                break;
            }
            TArray[row][NewIndexArray[7]] = charArray[i + 7]; //1

            i = i + 8;

        }

        //printing the new 2d array with columns organized in increasing order
        //the new plain text has to be read from the firt column (column 0) to the last one (column 7)
        for (int rows = 0; rows < 6; rows++) 
        {
            System.out.println();
            for (int col = 0; col < 8; col++) 
            {
                System.out.print(TArray[rows][col]);
            }

        }

        //Reading the new plain test per column
        char[] NewTChar = new char[Rows * Cols];

        int k = 0;
        for (int col = 0; col < 8; col++) 
        {
            System.out.println();
            for (int rows = 0; rows < 6; rows++) 
            {
                ch = TArray[rows][col];
                NewTChar[k] = ch;  //storing all the columns into a 1d array to obtain a new text (new cipher)

                k++;

            }

        }

        int n = 0;

        String SeconPlainText = new String(NewTChar);

        SeconPlainText = SeconPlainText.trim();

        SeconPlainText = SeconPlainText.replace("\u00A0", "");  //It does not work, I am not sure why

        System.out.println(SeconPlainText);  

        System.out.println(SeconPlainText);

        StringTokenizer st = new StringTokenizer(SeconPlainText);//it seems like the string is only one token
        while (st.hasMoreTokens()) 
        {
            System.out.println(st.nextToken());  //it prints the whole string, instead of each token
        }
        int a = st.countTokens();

        return SeconPlainText;
    }

    public static void main(String[] args) 
    {

        String PlainText = "Machines take me by surprise with great frequency";

        String Ttext = TCipher(PlainText);

        // SCipher(Ttext);
    }

}

實際上,我編輯了一個for循環,以便在遇到不間斷空格時必須強制存儲實際的空白字符。 因此,當將char數組轉換為字符串時,稍后可以使用text.replace(“”,“”);從字符串中刪除空格。 現在,它可以按預期工作。 但是,在IDE(Netbeans)中,“ isJavaLetter”被刪除了。 我不確定它是否已過時,但這可以幫助我完成我想做的事情。 以下是我更新的for循環:

 for (int col = 0; col < 8; col++) 
 {
        System.out.println();
        for (int rows = 0; rows < 6; rows++) 
        {
            ch = TArray[rows][col];

            if(Character.isJavaLetter(ch))//

                NewTChar[k] = ch;  //storing all the columns into a 1d array to obtain a new text (new cipher)
            else
                    NewTChar[k] =' ';   //storing an actual white space character
            k++;

        }

 }

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