Learn C++/8 Important points/PART 1

Hแด‡ส€แด‡ แด€ส€แด‡ แด›สœแด‡ ษชแดแด˜แดส€แด›แด€ษดแด› แด˜แดษชษดแด›s ษชษด C++ แด›สœแด€แด› แด€ C++ แด˜ส€แดษขส€แด€แดแดแด‡ส€ sสœแดแดœสŸแด… ษดแด‡แด แด‡ส€ า“แดส€ษขแด‡แด›.

C++ Intro & Basics:-

๐•€๐•„โ„™๐•†โ„๐•‹๐”ธโ„•๐•‹ โ„™๐•†๐•€โ„•๐•‹๐•Š in C++

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

โœฐCharacter set is the set of characters which are allowed to write C++ programs.

โœฐIndividual elements are collectively called as Lexical units or Lexical elements or Tokens.

โœฐKeywords are the reserved words that convey specific meaning to the C++ compiler.

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

โœฐLiterals are data items whose values do not change during the execution of a program. Therefore, Literals are called as Constants.

โœฐThere are different kinds of literals usedin C++ (Integer, Float, Character, String).The symbols which are used to do some
mathematical, logical operations are called as “Operators”.

โœฐPunctuators 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++.

Hแดแด˜แด‡ สแดแดœ สŸแด‡แด€ส€ษด แดแด€ษดสแด›สœษชษดษข า“ส€แดแด แดส ส™สŸแดษข.PสŸแด‡แด€sแด‡ ษขษชแด แด‡ แด€ สŸษชแด‹แด‡ แด€ษดแด… แด„แดแดแดแด‡ษดแด› แด›สœแด‡ ษขแดแดแด… ษชแด…แด‡แด€ แด›แด ษชแดแด˜ส€แดแด แด‡.Hแดแด˜แด‡ สแดแดœ แด€สŸสŸ สŸษชแด‹แด‡ แดส แด„แดษดแด›แด‡ษดแด›.

Tสœแด€ษดแด‹s า“แดส€ Vษชsษชแด›ษชษดษข แดส Sษชแด›แด‡

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