Chapter 9 - SELECT CASE

IF...THEN...ELSE is fine if you only have two things you want to check. What if you have 5 or 6 friends that might use your computer and you want the computer to say something different to each of them? Try this:

     CLS
     INPUT "Enter your name: ", Name$
     SELECT CASE Name$
       CASE "Ted"
         PRINT "Greetings, oh powerful master"
       CASE "Mike"
         PRINT "Go away!"
       CASE ELSE
         PRINT "Hello, "; Name$; ".  How are you?"
     END SELECT

Whew, that was a big one. Fortunately we learned how to save in Chapter 8. Save it if you want before running it. Feel free to change "Ted" and "Mike" to "Laura" and "Robin" or whoever.

SELECT CASE

SELECT CASE first checks Name$ for the value "Ted". If it finds it, it does the PRINT after the CASE "Ted". When the PRINT is done, it skips over the rest of the CASEs. It keeps checking against each CASE until it gets to CASE ELSE. If it hasn't found anything, it will do whatever is after the CASE ELSE.

Just In CASE

SELECT CASE can also be used with numbers as well as strings. Here's a quick example:

     CLS
     INPUT "Enter a number: ", Number
     SELECT CASE Number
       CASE 1234
         PRINT "Thank you for entering the secret number 1234"
       CASE 22
         PRINT "Well, 22 is an interesting number"
       CASE ELSE
         PRINT "You must not know the secret number"
     END SELECT

Learned

• SELECT CASE