数据帮助无效 [英] Invalid data helpme

问题描述

我正在尝试解析代码，因此我可以将无效数据编辑为数据无效。我无法让拆分器解决问题。

I'm trying to parse through my code so I can edit the invalid data to something like "Data is invalid." I'm having trouble getting the splitter to work out.

单词一 - 单词二 - 单词三 - 单词四 - 单词五
有没有更简单的方法来执行此操作而不是将每个单独的标记排序到数组中。所以，如果 - 附加到一个单词，我想知道如何更改它并显示类似无效数据的内容

Word One - Word Two - Word Three - Word Four - Word Five Is there an easier way to do this rather than going sorting each individual token into arrays. So where the "-" is attached to a word, I'd like advice on how to change this and display something like "Invalid Data"

推荐答案

只需拆分 - ，因为这就是数据的分离方式。每当您在数组中获得一个空间作为索引时，您就会知道数据不包含该数据。尝试这样做，检查数据是不是空格或数据是否与数字匹配。

Just split around the "-" since that is how the data is being separated. Whenever you get a space as an index in your array then you know the data doesn't contain that data. Try this where you check that the data is not a whitespace or the data matches a digit.

  while(read.hasNextLine())
  {
      line = read.nextLine();
      String[] words = line.split("-");
      if(words.length == 5)
      {
          Title[counter] = words[0].matches("\\s+") ? "No Title" : words[0];
          Author[counter] = words[1].matches("\\s+") ? "No Author" : words[1];
          Price[counter] = !words[2].matches("\\d+") ? 0 : Integer.parseInt(words[2]);
          Publisher[counter] = words[3].matches("\\s+") ? "No Publisher" : words[3];
          ISBN[counter] = !words[4].matches("\\d+") ? 0 : Integer.parseInt(words[4]);
          System.out.println(Title[counter] + Author[counter] + Price[counter] + Publisher[counter] + ISBN[counter]);
          counter++;
      }
      else
      {
          System.out.println("Invalid Data format: " + line);
      }
  }

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