如何拆分包含两个日期的文本行

Question

我有这样的问题。不幸的是，我无法编辑任何内容。

en_GB   United States   2015-07-10  2015-08-30  mountains   5,400.20    USD

这是文本文件中的一行。我正在尝试为它准备扫描仪并基于它创建对象。这是我制作的内容以及我可以编辑的内容。

String lang;
String country;
Date[] dates; //contains two dates - arrival and departure
String place;
Double price;
String curr;


public TravelData(String lang, String countryIn, Date[] dateIn, String placeIn, Double priceIn, String currIn)

这就是我的构造函数的样子。我试图使用扫描仪和 next() 方法，但看起来它不适用于日期。在较小的部分上剪切这行文本的最佳方法是什么？

我的扫描仪不工作:)。

public void ReadOffers(File dataDir) throws FileNotFoundException{
    TravelData travel;

    for (final File fileEntry : dataDir.listFiles()) {
        scan = new Scanner(fileEntry);
        while(scan.hasNextLine()){
            String l = scan.next();
            String c = scan.next();
            Date[] d = [Date.parse(scan.next()); Date.parse(scan.next())];
            String pl = scan.next();
            Double pr = Double.parseDouble(scan.next());
            String cu = scan.next();
        travel = new TravelData(l, c, d, pl, pr, cu);
        travelList.add(travel);
        }
    }   
}

Answer 1

您可以改为使用 BufferedReader 来读取该行，然后 split() 并将其放入一个字符串数组中，如下所示：

BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(fileEntry)));
String line;
while(line = br.readNext() != null)
{
     String[] words = line.split(" ");//assuming you want to split based on the whitespace char
    //do what you want to do with the words
}//reapeat as long as there is a line to the file

Answer 2

将它作为一个完整的字符串加载

String fileContent = new String(readAllBytes(get("test.txt"));

使用 split(regex) 通过正则表达式分隔

String[] separatedLines = fileContent.split("\n");
foreach(String s:separatedLines){
    s.split(" ");
    [parse as you wish, like you were doing]
    [do stuff, put results in a list or in another array]
}

编辑：我读到这些是标签：split("\t*")。 EDIT2：关于日期，检查SimpleDataFormat