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C++ was developed by Bjarne Stroustrup at AT & T Bell Labs during the year
1979.
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Character set is the set of characters which are allowed to write C++ programs.
•
Individual elements are collectively called as Lexical units or Lexical
elements or Tokens.
•
Keywords are the reserved words that convey specific meaning to the C++
compiler.
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Identifiers are user-defined names given to different parts of the C++ program
viz. variables, functions, arrays, classes etc.,
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Literals are data items whose values do not change during the execution of a
program. Therefore, Literals are called as Constants.
•
There are different kinds of literals used in C++ (Integer, Float, Character,
String)
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The symbols which are used to do some mathematical, logical operations are
called as “Operators”.
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Punctuators are symbols, which are used as delimiters in constructing C++
programs. They are also called as “Separators”.
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Extraction operator( >> ) and Insertion operator (<<) are used to
get input and send output in C++.
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