Visual Basic 2005 for Programmers: Deitel Developer Series, Second Edition

6.1. Introduction

In this chapter, we introduce Visual Basic's remaining control statements. We continue our early emphasis on object-oriented programming, presenting the next version of our GradeBook class. We demonstrate the For...Next, Select...Case, Do...Loop While and Do...Loop Until control statements. Through a series of short examples using While...End While and For...Next, we explore the essentials of counter-controlled repetition. We create a GradeBook class that uses a Select...Case multiple-selection statement to count the number of A, B, C, D and F grades in a set of letter grades entered by the user. We introduce the Exit and Continue program control statements. Finally, we discuss the logical operators, which enable you to use ...