Microsoft Visual C# debugging exercise 5-2 for chapter 5. This is my code but it gave me an error. It likes an infinitive loop. What did I do wrong, please? // Program asks user to enter a stock number // If the stock number is not 209, 312, or 414 the user must reenter the number // The program displays the correct price using System; using static System.Console; using System.Globalization; class DebugFive2 { static void Main() { const string ITEM209 = "209"; const string ITEM312 = "312"; const string ITEM414 = "414"; const double PRICE209 = 12.99; const double PRICE312 = 16.77; const double PRICE414 = 109.07; double price=0; string stockNum; Write("Please enter the stock number of the item you want "); stockNum = ReadLine(); while(stockNum != ITEM209 || stockNum != ITEM312 || stockNum != ITEM414) { WriteLine("Invalid stock number. Please enter again. "); stockNum = ReadLine(); } if(stockNum!=null && stockNum==ITEM209) { price = PRICE209; stockNum = ReadLine(); } else if(stockNum!=null && stockNum==ITEM312) { price = PRICE312; stockNum = ReadLine(); } else if(stockNum!=null && stockNum==ITEM414) { price = PRICE414; stockNum = ReadLine(); } WriteLine("The price for item # {0} is {1}", stockNum, price.ToString("C", CultureInfo.GetCultureInfo("en-US"))); } }

Microsoft Visual C# debugging exercise 5-2 for chapter 5. This is my code but it gave me an error. It likes an infinitive loop. What did I do wrong, please? // Program asks user to enter a stock number // If the stock number is not 209, 312, or 414 the user must reenter the number // The program displays the correct price using System; using static System.Console; using System.Globalization; class DebugFive2 { static void Main() { const string ITEM209 = "209"; const string ITEM312 = "312"; const string ITEM414 = "414"; const double PRICE209 = 12.99; const double PRICE312 = 16.77; const double PRICE414 = 109.07; double price=0; string stockNum; Write("Please enter the stock number of the item you want "); stockNum = ReadLine(); while(stockNum != ITEM209 || stockNum != ITEM312 || stockNum != ITEM414) { WriteLine("Invalid stock number. Please enter again. "); stockNum = ReadLine(); } if(stockNum!=null && stockNum==ITEM209) { price = PRICE209; stockNum = ReadLine(); } else if(stockNum!=null && stockNum==ITEM312) { price = PRICE312; stockNum = ReadLine(); } else if(stockNum!=null && stockNum==ITEM414) { price = PRICE414; stockNum = ReadLine(); } WriteLine("The price for item # {0} is {1}", stockNum, price.ToString("C", CultureInfo.GetCultureInfo("en-US"))); } }

EBK JAVA PROGRAMMING

9th Edition

ISBN:9781337671385

Author:FARRELL

Publisher:FARRELL

Chapter8: Arrays

Section: Chapter Questions

Problem 5GZ

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Question

Microsoft Visual C# debugging exercise 5-2 for chapter 5.

This is my code but it gave me an error. It likes an infinitive loop. What did I do wrong, please?

// Program asks user to enter a stock number

// If the stock number is not 209, 312, or 414 the user must reenter the number

// The program displays the correct price

using System;

using static System.Console;

using System.Globalization;

class DebugFive2

{

static void Main()

{

const string ITEM209 = "209";

const string ITEM312 = "312";

const string ITEM414 = "414";

const double PRICE209 = 12.99;

const double PRICE312 = 16.77;

const double PRICE414 = 109.07;

double price=0;

string stockNum;

Write("Please enter the stock number of the item you want ");

stockNum = ReadLine();

while(stockNum != ITEM209 || stockNum != ITEM312 || stockNum != ITEM414)

{

WriteLine("Invalid stock number. Please enter again. ");

stockNum = ReadLine();

}

if(stockNum!=null && stockNum==ITEM209)

{

price = PRICE209;

stockNum = ReadLine();

}

else

if(stockNum!=null && stockNum==ITEM312)

{

price = PRICE312;

stockNum = ReadLine();

}

else

if(stockNum!=null && stockNum==ITEM414)

{

price = PRICE414;

stockNum = ReadLine();

}

WriteLine("The price for item # {0} is {1}", stockNum, price.ToString("C", CultureInfo.GetCultureInfo("en-US")));

}

Expert Solution

Step 1

// Hi Buddy, You have done a fabulous job but made a mistake at one point i.e. in while loop, you have tested with || ( OR Operator), so if any of the condition passes, the loop will execute, so even if you put correct stock number then also, one condition will fail, while other two will be passed so our loop will execute continuously.

// It is highly recommended to use && ( And operator ) instead of || operator.

while(stockNum != ITEM209 && stockNum != ITEM312 && stockNum != ITEM414)

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