19. Example: Sequential output of ASCII files

• 
  // Writes employee data into ASCII text file sequentially, in a loop
  import java.nio.file.*;
  import java.io.*;
  import static java.nio.file.StandardOpenOption.*;
  import java.util.Scanner;
  public class WriteEmployeeFile
  {
      public static void main(String[] args)
      {
          Scanner input = new Scanner(System.in);
          Path file =
              Paths.get("C:\\example\\Employees.txt");
          String s = "";
          String delimiter = ",";
          int id;
          String name;
          double payRate;
          final int QUIT = 999;
          try
          {
              OutputStream output = new
                  // using java.nio.file.StandardOpenOption.CREATE
                  // BufferedOutputStream implements a buffered output stream
                  BufferedOutputStream(Files.newOutputStream(file, CREATE));
              BufferedWriter writer = new
                  BufferedWriter(new OutputStreamWriter(output));
              System.out.print("Enter employee ID number >> ");
              id = input.nextInt();
              while(id != QUIT)
              {
                  System.out.print("Enter name for employee #" +
                      id + " >> ");
                  input.nextLine();
                  name = input.nextLine();
                  System.out.print("Enter pay rate >> ");
                  payRate = input.nextDouble();
                  s = id + delimiter + name + delimiter + payRate;
                  writer.write(s, 0, s.length());
                  writer.newLine();
                  System.out.print("Enter next ID number or " +
                      QUIT + " to quit >> ");
                  id = input.nextInt();
              }
              writer.close();
          }
          catch(Exception e)
          {
              System.out.println("Message: " + e);
          }
      }
  }//class WriteEmployeeFile