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What is the difference between Strings and Arrays?In: Computers |
Answer
A data item (or variable) is described as a "string" type when it contains some number of characters. Those characters can usually be anything in the system's accepted list of codes. Most systems use ASCII, so a string can include the letters a-z, A-Z, numbers 0-9, and special characters like ~!@#$%^&*()_+-=[]\{}|:";'<>?,/. A string is treated as a single object, although most programming languages have methods to break strings apart (called sub-stringing). In the Perl language, strings are named $something.
An array is a collection of individual data items, sort of like a list. Each element in an array can be referred to in a program by its position in the list. In the Perl language, an array would be named @SOMETHING. The first element in the array would be named $SOMETHING[0], the second $SOMETHING[1], and so on. Each element can be a string, or some other data type.
Other data types would be intergers (positive or negative whole numbers), floating point (decimal numbers like 3.14159 or 2398.41; it can be more complicated than this, but that's another story), and a few more exotic types.
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First answer by ID416291531. Last edit by ID416291531. Question popularity: 42 [recommend question]
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