Starting out with Visual C# (4th Edition)

4th Edition

ISBN: 9780134382609

Author: Tony Gaddis

Publisher: PEARSON

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Textbook Question

Chapter 7, Problem 3PP

Charge Account Validation

In the Chap07 folder of the Student Sample Programs, you will find a file named ChargeAccounts.txt. The file contains a list of a company’s valid charge account numbers. There are a total of 18 charge account numbers in the file, and each one is a 7-digit number, such as 5658845.

Create an application that reads the contents of the file into an array or a List. The application should then let the user enter a charge account number. The program should determine whether the number is valid by searching for it in the array or List that contains the valid charge account numbers. If the number is in the array or List, the program should display a message indicating the number is valid. If the number is not in the array or List, the program should display a message indicating the number is invalid.

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Chapter 7, Problem 2PP

Chapter 7, Problem 4PP

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Chapter 7 Solutions

Starting out with Visual C# (4th Edition)

Ch. 7.1 - Prob. 7.1CP Ch. 7.1 - What is the difference in the way you work with...Ch. 7.1 - Prob. 7.3CP Ch. 7.1 - Is a variable of the Random class a reference type...Ch. 7.2 - Prob. 7.5CP Ch. 7.2 - Prob. 7.6CP Ch. 7.2 - Prob. 7.7CP Ch. 7.2 - Prob. 7.8CP Ch. 7.2 - Prob. 7.9CP Ch. 7.2 - Prob. 7.10CP

Ch. 7.4 - Prob. 7.11CP Ch. 7.4 - Prob. 7.12CP Ch. 7.4 - Prob. 7.13CP Ch. 7.6 - Prob. 7.14CP Ch. 7.6 - Prob. 7.15CP Ch. 7.6 - Prob. 7.16CP Ch. 7.7 - Prob. 7.17CP Ch. 7.7 - Write a statement that assigns the value 50 to the...Ch. 7.7 - Prob. 7.19CP Ch. 7.8 - Prob. 7.20CP Ch. 7.8 - Write a statement that declares a jagged array of...Ch. 7.9 - Write a statement that initializes a List with 4...Ch. 7.9 - Prob. 7.23CP Ch. 7.9 - Write a statement that clears the contents of the...Ch. 7.9 - Prob. 7.25CP Ch. 7 - The memory that is allocated for a_______ variable...Ch. 7 - A variable that is used to reference an object is...Ch. 7 - When you want to work with an object, you use a...Ch. 7 - The_______ creates an object in memory and returns...Ch. 7 - A(n) is an object that can hold a group of values...Ch. 7 - The indicates the number of values that the array...Ch. 7 - Prob. 7MC Ch. 7 - Prob. 8MC Ch. 7 - When you create an array, you can optionally...Ch. 7 - Prob. 10MC Ch. 7 - A(n)________ occurs when a loop iterates one time...Ch. 7 - C# provides a special loop that, in many...Ch. 7 - The foreach loop is designed to work with a...Ch. 7 - is a process that periodically runs, removing all...Ch. 7 - Various techniques known as_______ have been...Ch. 7 - Prob. 16MC Ch. 7 - A(n) is a type of assignment operation that copies...Ch. 7 - Prob. 18MC Ch. 7 - Prob. 19MC Ch. 7 - The .NET Framework provides a class named_______,...Ch. 7 - When you are working with a value type, you are...Ch. 7 - Reference variables can be used only to reference...Ch. 7 - Individual variables are well suited for storing...Ch. 7 - Arrays are reference type objects Ch. 7 - Prob. 5TF Ch. 7 - When you create a numeric array in C#, its...Ch. 7 - Prob. 7TF Ch. 7 - You use the == operator to compare two array...Ch. 7 - Prob. 9TF Ch. 7 - Prob. 10TF Ch. 7 - How much memory is allocated by the compiler when...Ch. 7 - What type of variable is needed to work with an...Ch. 7 - What two steps are typically required for creating...Ch. 7 - Are variables well suited for processing lists of...Ch. 7 - Prob. 5SA Ch. 7 - Prob. 6SA Ch. 7 - Prob. 7SA Ch. 7 - Prob. 8SA Ch. 7 - Prob. 9SA Ch. 7 - Prob. 10SA Ch. 7 - Assume names is a variable that references an...Ch. 7 - Prob. 2AW Ch. 7 - Write code for a sequential search that determines...Ch. 7 - Prob. 4AW Ch. 7 - Prob. 5AW Ch. 7 - Create a List object that uses the binary search...Ch. 7 - Total Sales In the Chap07 folder of the Student...Ch. 7 - Sales Analysis Modify the application that you...Ch. 7 - Charge Account Validation In the Chap07 folder of...Ch. 7 - Drivers License Exam The local drivers license...Ch. 7 - World Series Champions In the Chap07 folder of the...Ch. 7 - Name Search In the Chap07 folder of the Student...Ch. 7 - Population Data In the Chap07 folder of the...Ch. 7 - Tic-Tac-Toe Simulator Create an application that...Ch. 7 - Jagged Array of Exam Scores Dr. Hunter teaches...

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