android studio和netbeans中输入扫描程序和解析的不同行为 [英] different behaviour of input scanner and parse in android studio and netbeans

问题描述

我正在使用NetBeans（测试基本代码）和Android Studio（实际应用程序）读取相同的管道分隔文件并获得不同的结果。

I am reading the same pipe-delimited file using NetBeans (to test the basic code) and Android Studio (actual application) and getting different results.

以下是有问题的代码：

String URL = "http://.../CalendarUTF8(Dec2016).txt";

try {
  java.net.URL url = new java.net.URL(URL); 
  Scanner input = new Scanner(url.openStream());
  int i;
  for (i = 0; input.hasNext(); i++) {
    String temp = input.nextLine();
    eventCalendar[i] = temp.split("\\|",9);
  }
}
catch (java.io.IOException ex) {
  System.out.println("IO Errors");
}

代码在NetBeans中完美运行。在Android Studio中读取的同一文件随机中断输入行，然后将其读取为2行。我检查了文件，并且在它被拆分的地方没有隐藏的字符。如果我自己编写解析器，也可以正常工作。

Code works perfectly in NetBeans. Same file being read in Android Studio randomly breaks an input line in the middle, and then reads it as 2 lines. I checked the file and there is no hidden characters at the place where it gets split. If I write the parser myself, works fine as well.

推荐答案

看起来问题是在for循环的标题中使用hasNext（）并在body体中使用nextLine（） for循环。当我用hasNextLine（）替换hasNext（）时，我的记录计数匹配。不明白为什么，因为hasNext（）应该看一些东西，而不是改变，但它有效。

Looks like the problem is in using hasNext() in the header of for loop and using nextLine() in the body of for loop. When I replaced hasNext() with hasNextLine(), my record counts matched. Don't understand why, since hasNext() is supposed to look at something, not change, but it worked.

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