By Tony Gaddis, Kip R. Irvine
Within the Fifth version, Advanced visible easy 2010 is helping those who find themselves conversant in the basics of visible easy 2010 programming harness its energy for extra complicated makes use of. insurance of refined instruments and methods utilized in the at the present time contain numerous database, ASP.NET, LINQ, WPF and net companies themes. After learning the e-book and finishing the programming workouts, scholars might be in a position to create small- to medium-sized home windows and internet functions that use databases. they are going to additionally achieve crucial ideas in object-oriented programming, event-driven programming, and test-driven improvement. every one topic is gifted in an comprehensible sort that makes this booklet a pacesetter within the box.
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Extra info for Advanced Visual Basic 2010 (5th Edition)
Can an enumerated value be cast into an integer? 16. Why does the Select Case statement work well with enumerated type variables? 4 Focus on Program Design and Problem Solving: Bank Teller Application In this section, we will create a short two-tier application that simulates an electronic bank teller by letting the user look up an account, deposit funds, withdraw funds, and view the current balance. Let’s begin the design with a list of essential requirements: 1. Existing Account information (ID, account name, and account balance) will be stored in a data file.
We will offer that task as one of the chapter Programming Challenges. Background Information Before we start to design this application, let’s look at some helpful techniques. dat. \ notation indicates that we must back up one directory level to find the data file. A compiled VB program is stored in either the bin\Debug folder or the bin\Release folder of a project. dat file in the project’s root directory, the path that we pass to the OpenText method must back up two directory levels. ReadLine() The data file in the Bank Teller application contains three items of information on each line, delimited by commas.
You cannot directly change the value. You must either add or remove items from the collection before the value of Count changes. Count = 20 ' displays ''2'' ' Error! Example Let’s revisit the TestAverage property in the Student class that we have been using. Rather than letting callers set its value, we can calculate the value as the sum of all tests divided by the number of tests. Add(grade) End Sub Now we rewrite the TestAverage property, making it ReadOnly. The For Each loop iterates through the collection, adding each test grade to testSum.
Advanced Visual Basic 2010 (5th Edition) by Tony Gaddis, Kip R. Irvine