C Quick Start Chapter1.pdf

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1、QuickStartJoAbrantes,KerrieLeeHarrisandWillySusiloSchoolofComputerScienceandSoftwareEngineeringUniversityofWollongong,Australia2009C++QuickStartCopyright©2009UniversityofWollongongC++QuickStartContentsPreface7Chapter1BasicElementsofC++...9WhatisaProgram?...

2、9BasicsofaC++Program...9DataTypes12VariableDeclarationStatement12VariableDeclarationStatement14Expressions17ExpressionsusingArithmeticOperators18ArithmeticExpressionswithIntegerOperands18ArithmeticExpressionswithFloating-pointoperands20ArithmeticExpressions

3、withMixedOperandsandImplicitTypeConversion22AssignmentStatementsandImplicitTypeConversion24ExplicitTypeConversion275C++QuickStart6C++QuickStartPrefaceTheC++QuickStartManualisdesignedasanintroductiontotheC++programminglanguage.ItoffersabasicunderstandingofC+

4、+programmingconceptsandsyntax,whichenablesthestudenttofurtherstudythecontentatahigherlevel.ThismanualisintendedtoaccompanyfirstyearprogrammingsubjectsintheBachelorofIT(Computing),BachelorofComputerScience(DigitalSystemSecurityspecialisation)andBachelorofCom

5、puterScience(MultimediaandGameDevelopmentspecialisation)oftheUniversityofWollongong.Inordertocompletetheexamplesandexercisesinthismanualthestudentwillrequireaccesstoacompilerandasimpletexteditor.AnIntegratedDevelopmentEnvironments,Quincy,whichcontainacompil

6、erandaneditor,canbedownloadedfromtheweb.TutorialsontheinstallationanduseofQuincycanbefoundinAppendixB.7C++QuickStart8C++QuickStartChapter1BasicElementsofC++ChapterreviewWhatisaProgram?WhatisaProgram?AprogramisanorganisedlistofinstructionsthatwhenBasicsofaC+

7、+ProgramexecutedcausesthecomputertobehaveinaDataTypespredeterminedmanner.VariableDeclarationStatementThegeneralpurposeofaprogramisto:AssignmentStatement•Receiveinput.Expressions•Performsomecalculation/manipulationoftheExpressionsusinginputdata.ArithmeticOpe

8、rators•Produceoutput.ArithmeticExpressionswithIntegerOperandsArithmeticExpressionsBasicsofaC++ProgramwithFloating-PointOperandsEveryC++programcontainsoneormorefunctions,ArithmeticExpressionswhichwillbe