Task 1, read in the raw file.

Objectives

1. Review basic file input

Notes

• It has been a while, but remember to read a file
  • Build a scanner associated with a file in a try-catch block.
  • An example is here
• To make it easier to change the file name in the future, I will declare a constant.
• This should be review.
• As a check, let's count the lines of data.
• Remember we may need to look at the Scanner Methods
  • hasNext()
  • hasNextLine();
  • nextLine()

• import java.io.*;
  import java.util.Scanner;
  
  public class SalesOfCoffee{
       public static final String FILE_NAME = "coffee.csv";
  
       public static void main(String[] args){
           Scanner myScanner;
           String line;
           int totalLines = 0;
  
          try {
                myScanner = new Scanner(new File(FILE_NAME));
          } catch (FileNotFoundException e) {
                System.out.printf("Cound ont open %", FILE_NAME);
                return;
          }
  
          myScanner.nextLine();
  
          while(myScanner.hasNextLine()) {
               line = myScanner.nextLine();
               totalLines++;
  
               System.out.printf("Got '%s'\n", line);
          }
  
          System.out.printf("The file contains %d lines.\n",totalLines);
  
          myScanner.close();
       }
  }