阅读java中的文本文件时如何忽略括号、逗号和句号？

Question

我有一个包含两个段落的文本文件。它在某些单词的末尾有句号和逗号，当我阅读文件时，这些逗号也被添加到阅读的单词列表中。这是读取文件的代码

public static Scanner openTextFile(String fileName) {
    Scanner data;

    try{
        data = new Scanner(new File(fileName));
        return data;
    }
    catch(FileNotFoundException e){
        System.out.println(fileName  + " did not read correctly");
    }  
    data = null;
    return data;
}

但我希望它只读取单词并忽略任何逗号或句点或旁边的任何括号。我怎样才能实现它

我使用了 replaceall 方法，但它根本不起作用

public static void readOtherFile(Scanner data, int g[][], Key[] hashTable, int[] keyWordCounter, int modValue)  {
    int lineCounter = 0, wordCounter = 0;
    
    String x;
    String []y;
    while(data.hasNextLine()){
        lineCounter += 1;  
        x = data.nextLine();
        
        /*the following conditional statement takes care of the issue of their being an
         * entirely blank line encountered before reaching the end of the text file.
         */
        if(x.length() == 0) {
            x = data.nextLine();
        }
        
        x = x.toLowerCase();
        x = x.replaceAll("\p{Punct}", "");
      
        
        y = x.split(" ");
        wordCounter +=  y.length;
        
        //method compares a token to a key word to see if they are identical.
        checkForKeyWord(y, g, hashTable, keyWordCounter, modValue);
    }
    //method prints statistical results
    printResults(lineCounter, wordCounter, hashTable, keyWordCounter);
}

示例文件 sample file link

Answer 1

为了实现这一点，您可以对从文件中解析为字符串的数据使用正则表达式。在进行字符串操作之前，您需要 return 从第一个读取的数据。在 while 循环中进行字符串操作是不好的做法。

  static String readFile(String path, Charset encoding)
  throws IOException
   {
     byte[] encoded = Files.readAllBytes(Paths.get(path));
     return new String(encoded, encoding);
   }

  String data = d.replaceAll("[,.]", "");

阅读java中的文本文件时如何忽略括号、逗号和句号？

How to ignore brackets, commas and fullstops when reading a text file in java?

java

readfile