// iostreams/BufferedInputFile.java
// (c)2017 MindView LLC: see Copyright.txt
// We make no guarantees that this code is fit for any purpose.
// Visit http://OnJava8.com for more book information.
// {ValidateByHand}
import java.io.*;

public class BufferedInputFile {
  public static String
  read(String filename) throws IOException {
    try(
      BufferedReader in = new BufferedReader(
        new FileReader(filename))
    ) {
      String s;
      StringBuilder sb = new StringBuilder();
      while((s = in.readLine())!= null)
        sb.append(s + "\n");
      return sb.toString();
    }
  }
  public static void
  main(String[] args) throws IOException {
    System.out.print(read("BufferedInputFile.java"));
  }
}