Parsing a fixed-width formatted file in Java

Question

I\'ve got a file from a vendor that has 115 fixed-width fields per line. How can I parse that file into the 115 fields so I can use them in my code?

My first thought

Answer 1

/*The method takes three parameters, fixed length record , length of record which will come from schema , say 10 columns and third parameter is delimiter*/
public class Testing {

    public static void main(String as[]) throws InterruptedException {

        fixedLengthRecordProcessor("1,2,3,4,5,6,7,8,9,10,1,2,3,4,5,6,7,8,9,10,1,2,3,4,5,6,7,8,9,10,1,2,3,4,5,6,7,8,9,10,1,2,3,4,5,6,7,8,9,10,1,2,3,4,5,6,7,8,9,10,1,2,3,4,5,6,7,8,9,10,1,2,3,4,5,6,7,8,9,10,1,2,3,4,5,6,7,8,9,10,1,2,3,4,5,6,7,8,9,10,1,2,3,4,5,6,7,8,9,10", 10, ",");

    }

    public static void fixedLengthRecordProcessor(String input, int reclength, String dilimiter) {
        String[] values = input.split(dilimiter);
        String record = "";
        int recCounter = 0;
        for (Object O : values) {

            if (recCounter == reclength) {
                System.out.println(record.substring(0, record.length() - 1));// process
                                                                                // your
                                                                                // record
                record = "";
                record = record + O.toString() + ",";
                recCounter = 1;
            } else {

                record = record + O.toString() + ",";

                recCounter++;

            }

        }
        System.out.println(record.substring(0, record.length() - 1)); // process
                                                                        // your
                                                                        // record
    }

}