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In the previous lesson, we have learned how to control
the program flow using the If...ElseIf control structure. In this chapter, you will learn
another way to control the program flow, that is, the Select Case control
structure. However, the Select Case control structure is slightly different from
the If....ElseIf control structure . The difference is that the Select Case
control structure basically only make decision on one expression or dimension
(for example the examination grade) while the If ...ElseIf statement control
structure may evaluate only one expression, each If....ElseIf statement may also
compute entirely different dimensions. Select Case is preferred when there exist
many different conditions because using If...Then..ElseIf statements might
become too messy. The format of the Select Case control structure is show below:
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Example 8.2
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Example 8.3
Example 8.2 could be rewritten as follows:
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