programming-for-dummies

Making Multiple Choices with the SELECT CASE Statement 195
CASE 15
Status = Student
END SELECT
The curly bracket languages, like C and C++, don’t let you check for a range
of values in a switch statement.
Comparing values
Listing a range of values can be useful, but what if there’s no upper (or
lower) limit? For example, anyone over the age of 65 might be considered
retired, so you need to use a comparison operator to check a variable with a
value, such as Age >= 65.
To use a comparison operator in a SELECT CASE statement, languages such
as BASIC use the following syntax:
SELECT CASE Age
CASE IS >= 65
Status = Retired
CASE 21 TO 64
Status – Working
CASE 15
Status = Student
END SELECT
Book II
Chapter 4
Making Decisions
by Branching
In this example, the first part of the SELECT CASE statement tells the
computer to check if the value in the Age variable is (note the IS keyword)
>= 65.
The second part of the SELECT CASE statement checks if the Age variable
falls within the range of 21 to 64.
The third part of the SELECT CASE statement checks if the Age variable is
exactly equal to 15.
As you can see, each part of a SELECT CASE statement can check a value
by matching it exactly, checking a range of values, or using a comparison
operator.
The curly bracket languages, like C and C++, don’t let you use comparison
operators in a switch statement.
Running at least one command
with the ELSE statement
It’s possible for a SELECT CASE statement to run zero commands if the
CASE statement can’t match a variable to any specific value, such as