从文本文件中读取文本并将其与字段名称及其值逐行显示

Question

I have this text file:

1             Juan García12-11-2016                               Reparación caldera 110.50
2             Eva Blasco05-10-2016                                     Fuga de agua 200.00
3           Rosa Carreras23-01-2016                                  Cambio de filtro    0.75

And I need to display it like this on the console:

Code: 1, Client: Juan García, Date: 12-11-2016, Concept: Reparación caldera, Price: 110.50

I have tried to do it with regex but i usually get errors and i don't have time to properly learn it

Pattern p = Pattern.compile(
            "^([\\d.]+)\\s+(\\d+)\\s+([\\d.]+)\\s+(.+?)\\s+\\((\\d+)\\)(?:\\s+\\{([^{}]+))?"
    );
    Matcher m = p.matcher("");
    Scanner sc = new Scanner(new File("C:\\Temp\\factura.txt"));
    while (sc.hasNextLine())
    {
        String s = sc.nextLine();
        if (m.reset(s).find())
        {
            System.out.printf("%s %8s %6s%n%s (%s) %s%n%n",
                    m.group(1), m.group(2), m.group(3), m.group(4), m.group(5),
                    m.start(6) != -1 ? m.group(6) : "");
        }
    }

I tried some things with regex and substring but i can't get it to work and I'm going crazy with this.

Any help apreciated.

Answer 1

Try this.

public static void main(String[] args) {
        String line="1             Juan García12-11-2016                               Reparación caldera 110.50";

        String amount=line.substring(line.lastIndexOf(' '),line.length());
        String code=line.substring(0,line.indexOf(' '));
        String remaining=line.substring(code.length(),line.lastIndexOf(' '));
        //Juan García12-11-2016                               Reparación caldera
        remaining=remaining.trim();

        Matcher matcher = Pattern.compile("\\d").matcher(remaining);
        matcher.find();
        int i = Integer.valueOf(matcher.group());

        String name=remaining.substring(0,i);
        remaining=remaining.substring(name.length(),remaining.length());
        //12-11-2016                               Reparación caldera
        String date=remaining.split(" ")[0];
        String concept=remaining.substring(date.length(),remaining.length());
        concept=concept.trim();

        System.out.printf("code: "+code+" client:"+name+" Date:"+date+" Concept: "+concept+" Price:"+amount);

}