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LTRIM$, RTRIM$, STR$, and VAL Functions Example
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' This example uses VAL and STR$ to convert a hexadecimal number to a
' decimal number. The LTRIM$ and RTRIM$ functions are used to trim blanks
' from the resulting string.
 
' To try this example:
' 1. Choose New Project from the File menu
' 2. Copy the code example below to the code window
' 3. Press F5 to run the example
 
 CLS                               ' Clear the screen
 
' Accept all data as ASCII text and assign it to a string.
 LINE INPUT "Enter hexadecimal value to be converted to decimal: "; fathex$
 hexnum$ = LTRIM$(RTRIM$(fathex$)) ' Trim blanks off both sides of string
 outhex$ = UCASE$(hexnum$)         ' Convert characters to uppercase
 num# = VAL("&H" + outhex$)        ' &H tells VAL that A,B,C,to F are OK
 dnum$ = STR$(num#)                ' STR$ converts decimal back to string
 PRINT "Your input is "; "&H " + outhex$
 LOCATE 19, 1
 PRINT "Hex input     "; "&H " + outhex$; " equals "; dnum$; " in decimal"
 PRINT "Decimal value "; dnum$; " equals "; "&H " + outhex$; " in hex"
 PRINT
 END