In this section, you will learn how to parse file with several delimiters and line feeders in Java.
In this section, you will learn how to parse file with several delimiters and line feeders in Java.In this section, you will learn how to parse file with several delimiters and line feeders. We have used BufferedReader class in order to read the file. All the delimiters and the line feeders have been replaced using regular expression with replaceAll() method and replace() method and we get the values present between the tags, spaces etc.
Here is the file.txt:
<cr><lf><lf> ^^^<rsphdr><cr><lf> M^^<ctag>^COMPLD<cr><lf> (^^^"<aid>[,<aidtype>]:<ntfcncde>,<condtype>,<srveff>, [<ocrdat>], [<ocrtm>], [<locn>], [<dirn>] [, <tmper>] [:[<conddescr>], [<aiddet>] [,<obsdbhvr> [,<exptdbhvr>]] [:[<dgntype>][,<tblislt>]]]"<cr><lf>)* ; |
Here is the code:
import java.io.*; import java.util.regex.*; public class Read { public static void main(String[] args) throws Exception { BufferedReader bf = new BufferedReader(new FileReader("C:\\file.txt")); String line; String data = ""; while ((line = bf.readLine()) != null) { String replacedData = line.replaceAll("[|,|:|/|\\|\'><*}{^();]", " ").replaceAll("\"", "").replace('[', ' ').replace(']', ' '); System.out.println(replacedData); } } }
Output:
cr lf lf rsphdr cr lf M ctag COMPLD cr lf aid aidtype ntfcncde condtype srveff ocrdat ocrtm locn dirn tmper conddescr aiddet obsdbhvr exptdbhvr dgntype tblislt cr lf