C++ program: Points to Remember

Points to Remember:

• C++ was developed by Bjarne Stroustrup at AT & T Bell Labs during the year 1979.

• 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.

• Identifiers are user-defined names given to different parts of the C++ program viz. variables, functions, arrays, classes etc.,

• 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)

• The symbols which are used to do some mathematical, logical operations are called as “Operators”.

• Punctuators are symbols, which are used as delimiters in constructing C++ programs. They are also called as “Separators”.

• Extraction operator( >> ) and Insertion operator (<<) are used to get input and send output in C++.