在Ubuntu终端中工作的代码，在Windows Eclipse中不工作

Question

I'm trying to parse day format like "dd/mm/yyyy" with useDelimiter but faced a strange problem. I used the code below, which works well on Ubuntu terminal.

Scanner k = new Scanner(System.in);
k.useDelimiter("/|\n");
String day,month,year;
day = k.next(); month = k.next(); year = next();
System.out.println(day + "/" + month + "/" + year);
int d = Integer.parseInt(day);
int m = Integer.parseInt(month);
int y = Integer.parseInt(year);

But on Windows when I copy this code to Eclipse, it gives an error at :

int y = Integer.parseInt(year);

I've found what causes this. When i print "year", it prints 2014 but there is some whitespace at the end of 2014 so the integer isn't parsed correctly. I solved this by changing the code in Eclipse to:

year = next().trim();

BUT :

My question is, how can it be possible that the same code works on Ubuntu but not on Windows platform ?

Answer 1

You can also use a line.seperator. System.getProperty("line.separator") will retrieve a correct line separator that is used by your OS.

public class Tester {


 public static void main(String[] args) {
    Scanner k = new Scanner(System.in);
    String newLine = System.getProperty("line.separator");

    k.useDelimiter("/|"+newLine);
    String day,month,year;

    day = k.next(); 
    month = k.next(); 
    year = k.next();
    System.out.println(day + "/" + month + "/" + year);


 }
}

Answer 2

Try adding \\r to the delimiters. In Ubuntu new line is only \\n while in Microsoft new line is '\\r\\n'