Using Java 8 NIO, how can I read a file while skipping the first line or header record? [duplicate]

Question

I am trying to read a large file line by line, in java, using NIO library. But this file also contains headers... try (Stream<String> stream = Files.lines(Paths.get(schemaFileDir+File.separator+schemaFileNm))){ stream.forEach(s->sch.addRow(s.toString(),file_delim)); }

How do i modify this to skip the first line of the file? Any pointers..?

Answer 1

Use the Stream.skip method to skip the header line.

try (Stream<String> stream = Files.lines(
          Paths.get(
             schemaFileDir+File.separator+schemaFileNm)).skip(1)){
 // ----
}

Hope this helps!

Answer 2

You can opt to try using Iterator

Iterator<String> iter = Files.lines(Paths.get(schemaFileDir+File.separator+schemaFileNm)).iterator();
while (iter.hasNext()) {
    iter.next();                  // discard 1st line
    sch.addRow(iter.next().toString(),file_delim);  // process
}