Accepted Answer

Ok,

Here you go:

Code: import java.io.BufferedReader; import java.io.BufferedWriter; import java.io.FileReader; import java.io.FileWriter; import java.io.IOException; import java.io.InputStreamReader; import java.text.DecimalFormat; import java.text.NumberFormat; /** * This is supposed to read product id, product name and product price entered * from the user and writes this information to a file. The application should * repeatedly prompt for this product information until terminated by the user. */ public class InventoryInput {     public static void main(String[] args) {         if (args.length != 1) {             System.out.println("Usage: java InventoryInput filename");             System.out                     .println("\tfilename is the full path where the inventory file is to be written.");             System.exit(1);         }         int productid = 0;         String productname;         float productprice;         NumberFormat priceformat = new DecimalFormat("0.99");         try {             BufferedWriter writer = new BufferedWriter(new FileWriter(args[0]));             String instr = null;             final BufferedReader input = new BufferedReader(                     new InputStreamReader(System.in));             do {                productid = 0;                System.out                         .println("Please enter a product number or -1 to quit:");                instr = input.readLine().trim();                try {                     productid = Integer.parseInt(instr);                     if (productid > 0) {                         System.out.println("Please enter a product name:");                         productname = input.readLine().trim();                         System.out.println("Please enter a product price:");                         instr = input.readLine().trim();                         try {                             productprice = Float.parseFloat(instr);                             writer.write(String.valueOf(productid));                             writer.write(' ');                             writer.write(productname);                             writer.write(' ');                             writer.write(priceformat.format(productprice));                             writer.write('\n');                         } catch (NumberFormatException nfe) {                             System.out                                     .println("Product price must be an numeric value, ex: 19.50");                         }                     }                } catch (NumberFormatException nfe) {                     System.out                             .println("Product number must be an integer value, ex: 1001");                }             } while (productid != -1);             writer.close();             input.close();             // reads in the input file and prints out its contents.             BufferedReader reader = new BufferedReader(new FileReader(args[0]));             while (reader.ready()) {                System.out.println(reader.readLine());             }             reader.close();         } catch (IOException ioe) {             ioe.printStackTrace();         }     } }

Hope this helps.

Thank you.

Expert:	Rafael Martins
Pos. Feedback:	100.0 %
Accepts:
Answered:	5/25/2009

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