Question

2 Date:04/10/2019 3chapter 12.11 Find 4 Program nane: Text I/0 7 package cscl 8- import java. io.File; 9 import java.io.File 10 import java.util.Scanner; 11 public class SalesReportf 12 public static void main(Stringt1 ares) throws Exception (//main method-ai String name,line;//declare string variable-ai 14 16 18 int soldNum;//declare int variable-aj double costPerBottle,retailBottle,profit,percent;//declare multi variable-ai int totalSold-0;//declare and intialic its value-ai double totalCost-e;//declare and intialie its value-ai double totalRetail-0;//declare and intialie its value-ai double totalProfit -0;//declare and intialie its value-ai double totalPercent-8;//declare and intialie its value-ai system. out.printin( Ifititsoda sales):tfers to i times tab- Systea.out.printInc itit \tBottleslt tcostlttRetailttprofitit\tpercent"):// print various opt ions ai System.out.println)://a new line-ai System.out.println("Soda\t\tltsold. ItItBottlelt\tBottleltitBrand\t ItSold of 15e")://print required opt System.out.println(" try t Scanner sc - new Scanner(new File("C:ccsrccsc1611Isodasales.dat"))://create an object with while(sc.hasNextline))//while loopm starts-ai 31 name sc.nextLine):// read name's value-aj - SalesReport [lavs Application) ChProgram F Exception in thread "main" iava.la at sun.misc.FloatingDecinal.readJavaformatstring(Unknown Source) at sun.misc.FloatingDecinal parseDouble(Unknown Source) at csc161.SalesReport.main(SalesR 57:10 rch

Answer 1

Answer
NumberFormatException will occur when we pass the invalid number in string or empty string
so in our program we have Double.parseDouble() at line 38 where we are passing the empty string that is the reason we are getting exception
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