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What is an string?

In QBASIC, a string is a sequence of characters (letters, digits, or symbols) enclosed in double quotes (" ").
Strings are stored in string variables, and by convention, the variable name must end with a dollar sign ($) to indicate it is a string type.

👉 Think of string as array
Examples:
1. Assigning a String to a Variable
CLS
name$ = "Krishna"
PRINT "My name is "; name$
end
2. Concatenating Strings
CLS
firstName$ = "Ram"
lastName$ = "Sharma"
fullName$ = firstName$ + " " + lastName$
PRINT "Full name is "; fullName$
end
3. Inputting a String from User
CLS
INPUT "Enter your city: ", city$
PRINT "You live in "; city$
end
4. String handling functions
CLS
word$ = "COMPUTER"
PRINT "Length = "; LEN(word$)
PRINT "First 3 letters = "; LEFT$(word$, 3)
PRINT "Last 3 letters = "; RIGHT$(word$, 3)
PRINT "Middle part (letters 3 to 6) = "; MID$(word$, 3, 4)
end

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