Cours : C++ Basics / PDF

Cours : C++  Basics / PDF

Sample of the PDF document 

Variables and Assignments

nVariables are like small blackboards

nWe can  write a number on them

nWe can change the number

nWe can erase the number

nC++ variables are names for memory locations

nWe can  write a value in them

nWe can change the value stored there

nWe cannot erase the memory location

nSome value is always there

Identifiers

nVariables names are called identifiers

nChoosing variable names

nUse meaningful names that represent data to
 be stored

nFirst character must be

na letter

nthe underscore character

nRemaining characters must be

nletters

nnumbers

nunderscore character

Keywords

nKeywords (also called reserved words)

nAre used by the C++ language

nMust be used as they are defined in
the programming language

nCannot be used as identifiers........

Cours : C++  Basics / PDF