public class TransactionReader
1: //TransactionReader.java
3: import java.io.FileInputStream;
4: import java.io.FileNotFoundException;
5: import java.io.IOException;
6: import java.io.File;
7: import java.util.Scanner;
9: public class TransactionReader
10: {
11: public static void main(String[] args)
12: {
13: String fileName = "Transactions.txt";
14: try
15: {
16: Scanner inputStream = new Scanner(new File(fileName));
17: String line = inputStream.nextLine(); //Read header line
18: double totalSales = 0;
19: System.out.println();
20: //Read the rest of the file, line by line
21: while (inputStream.hasNextLine())
22: {
23: line = inputStream.nextLine();
24: //Extract SKU(Stock Keeping Unit),quantity,price,description
25: String[] items = line.split(",");
26: String SKU = items[0];
27: int quantity = Integer.parseInt(items[1]);
28: double price = Double.parseDouble(items[2]);
29: String description = items[3];
30: System.out.printf("Sold %d of %s (SKU: %s) at $%1.2f each.\n",
31: quantity, description, SKU, price);
32: totalSales += quantity * price;
33: }
34: System.out.printf("Total sales: $%1.2f\n", totalSales);
35: inputStream.close( );
36: }
37: catch(FileNotFoundException e)
38: {
39: System.out.println("Error opening the file " + fileName + ".");
40: }
41: catch(IOException e)
42: {
43: System.out.println("Problem with input file " + fileName + ".");
44: }
45: }
46: }