How to split number using a separator in java

Question

i have an input in a file where i have some numbers in the format

106,648|403,481 747,826|369,456 758,122|365,637 503,576|808,710 325,374|402,513

not i want to format the number as 106,648 403,481 747,826 .. and so on but i am unable to do this i have done this so far

public class MidPointSum {

public static void main(String[] args) {

    File file=new File("D:/midpoint.txt");

    try{

        Scanner sc=new Scanner(file);

            while(sc.hasNext()){

                String value=sc.next();

                String getVal[]=value.split("|");
                for(int i=0;i<getVal.length;i++){

                    System.out.println(getVal[i]);
                }

            }

    }catch(FileNotFoundException e){
        System.err.println("File is not Found");
    }catch (Exception e){
        System.err.println("Another Exception");
    }

}

but i am not getting the desired output.Please someone help me ..

while splitting try to escape the pipe character. as .split("\|"); — Aman
– Aman, Commented Jun 1, 2013 at 1:43
i also want the sum of the y coordinates in this pair ...can anyone help?? — Mandrek
– Mandrek, Commented Jun 1, 2013 at 2:07

Community · Accepted Answer · 2017-05-23 11:57:23Z

2

Java's split uses a regex, so you need to double escape pipe:

String[] getVal=value.split("\\|");

If it were a plain regex you'd need to escape it anyway, but in java "\" is a special character in a string, due to characters like \t and \n, hence the double escape.

edited May 23, 2017 at 11:57

CommunityBot

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answered Jun 1, 2013 at 1:44

Will

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Evgeniy Dorofeev · Accepted Answer · 2013-06-01 01:45:31Z

1

| is a regex metacharacter and it needs to be escaped, try "\\|"

answered Jun 1, 2013 at 1:45

Evgeniy Dorofeev

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