Now let's say that you wanted a dollar sign ($) in front of the number represented by variable C. The $ must be PRINTed inside quotes and in front of variable C. To add the $ to your program hit the <RUN/STOP> and <RESTORE> keys. Now type in line 40 as follows:
40 PRINT"$" C
Now hit <RETURN>, type RUN and hit <RETURN> again. The dollar sign goes in quotes because the variable C only represents a number and can't contain a $. If the number represented by C was 100 then the Commodore 64 screen would display $ 100. But, if you tried to PRINT $C without using the quotes, you would get a ?SYNTAX ERROR message.
One last tip about $$$: You can create a variable that represents a dollar sign which you can then substitute for the $ when you want to use it with numeric variables. For example:
Now whenever you need a dollar sign you can use the string variable Z$. Try this:
10 Z$="$": INPUT A 20 PRINT Z$A
Line 10 defines the $ as a string variable called Z$, and then INPUTs a number called A. Line 20 PRINTs Z$ ($) next to A (number).
You'll probably find that it's easier to assign certain characters, like dollar signs, to a string variable than to type "$" every time you want to calculate dollars or other items which require " " like %.
Most simple programs use the INPUT statement to get data from the person operating the computer. When you're dealing with more complex needs, like protection from typing errors, the GET statement gives you more flexibility and your program more "intelligence." This section shows you how to use the GET statement to add some special screen editing features to your programs.
|This page has been created by Sami Rautiainen.|
|Read the small print.||Last updated December 22, 2002.|