如何写入新的文本文件并保留空格？

Question

我正在尝试“拼写检查”给定的文本文件，我的程序读取给定的文件并引用我的老师给出的字典哈希集。如果它找到一个不在字典中或被某些字符分割的词，它会用 <> 将这个词括起来。一个条件是我需要保留单词之间的空格，但我不知道如何确保程序做到这一点。

当前代码：

public static void spellCheck(File processingFile, File dictionaryFile) {
        try {
            HashSet<String> dictionary = new HashSet<>();
            FileReader processing = new FileReader(processingFile);
            FileReader dictionaryF = new FileReader(dictionaryFile);
            PrintWriter outputFile = new PrintWriter("test_spellChecked.txt");
            
            Scanner scnr = new Scanner(dictionaryF);
            String word = scnr.nextLine();
            while(scnr.hasNext()) {
                //dont need to check for double words cus its literally a dictionary
                dictionary.add(word);
                word = scnr.nextLine();
                
            }
            //somehow create a stored text file of the processing text that gets changed based on the dictionary check
            
            scnr = new Scanner(processing);
            word = scnr.next();
            boolean isCorrect = true;
            while(scnr.hasNext()) {
                if(word.matches("[a-zA-Z]+")) {
                    if(!dictionary.contains(word.toLowerCase())) {
                        outputFile.print("<" + word + ">");
                    }
                    else
                        outputFile.print(word);
                }
                else {
                    String[] words = word.split("((?=[^a-zA-Z])|(?<=[^a-zA-Z]))");
                    for(String splitWord: words) {
                        if(!dictionary.contains(splitWord.toLowerCase())) {
                            outputFile.print("<" + splitWord + ">");
                        }
                        else
                            outputFile.print(splitWord);
                    }
                }
                word = scnr.next();
            }
            
            outputFile.close();
            System.out.println("File has been checked.");
        }
        catch (FileNotFoundException e) {
            System.out.println("File not found!");
        }
        

    }

我只是想出了如何用完全相同的单词将文件重写到文件中，我不确定如何保留空格。

Answer 1

            while(scnr.hasNext()) {
                if(word.matches("[a-zA-Z]+")) {
                    if(!dictionary.contains(word.toLowerCase())) {
                        outputFile.print("<" + word + ">");
                    }
                    else
                        outputFile.print(word);
                }
                else {
                    String[] words = word.split("((?=[^a-zA-Z])|(?<=[^a-zA-Z]))");
                    for(String splitWord: words) {
                        if(!dictionary.contains(splitWord.toLowerCase())) {
                            outputFile.print("<" + splitWord + ">");
                        }
                        else
                            outputFile.print(splitWord);
                    }
                }
                word = scnr.next();
            }

这就是空间被删除的原因。

word 和 splitWord 不包含空格。

因为你正在用

scnr.next()

阅读单词

next()

读取文件直到空格或行更改。

这样改

outputFile.print(splitWord+" ");

或

outputFile.format("%s ", splitWord);

会节省空间。

但这不会保存

\n

或

\t

如果你也想保存

\n

，

      for(String word:words){
        if(word.matches("[a-zA-Z]+")) {
          if(!dictionary.contains(word.toLowerCase())) {
            outputFile.print("<" + word + ">");
          }
          else
            outputFile.print(word);
        }
        else {
          String[] words = word.split("((?=[^a-zA-Z])|(?<=[^a-zA-Z]))");
          for(String splitWord: words) {
            if(!dictionary.contains(splitWord.toLowerCase())) {
              outputFile.print("<" + splitWord + ">");
            }
            else
              outputFile.print(splitWord);
          }
        }
        outputFile.println();
      }
      nextLine = scnr.nextLine();
      words = nextLine.split(" ");
    }