Number of lines in a file in Java

Question

I use huge data files, sometimes I only need to know the number of lines in these files, usually I open them up and read them line by line until I reach the end of the file<

Answer 1

With java-8, you can use streams:

try (Stream lines = Files.lines(path, Charset.defaultCharset())) {
  long numOfLines = lines.count();
  ...
}