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1、外文原文IntroductiontoJavaautor：MartinNgobye.source：ComputingStaticSliceforJavaProgramsJavaisdesignedtomeetthechallengesofapplicationdevelopmentinthecontextofheterogeneous,network-widedistributedenvironments.Paramountamongthesechallengesissecuredeliveryofapplicationsthatconsumetheminimu
2、mofsystemresources,canrunonanyhardwareandsoftwareplatform,andcanbeextendeddynamically.Javaoriginatedaspartofaresearchprojecttodevelopadvancedsoftwareforawidevarietyofnetworkdevicesandembeddedsystems.Thegoalwastodevelopasmall,reliable,portable,distributed,real-timeoperatingplatform.W
3、hentheprojectstarted,C++wasthelanguageofchoice.ButovertimethedifficultiesencounteredwithC++grewtothepointwheretheproblemscouldbestbeaddressedbycreatinganentirelynewlanguageplatform.DesignandarchitecturedecisionsdrewfromavarietyoflanguagessuchasEiffel,SmallTalk,ObjectiveC,andCedar/Me
4、sa.Theresultisalanguageplatformthathasprovenidealfordevelopingsecure,distributed,networkbasedend-userapplicationsinenvironmentsrangingfromnetwork-embeddeddevicestotheWorld-WideWebandthedesktop.ThedesignrequirementsofJavaaredrivenbythenatureofthecomputingenvironmentsinwhichsoftwaremu
5、stbedeployed.ThemassivegrowthoftheInternetandtheWorld-WideWebleadsustoacompletelynewwayoflookingatdevelopmentanddistributionofsoftware.Toliveintheworldofelectroniccommerceanddistribution,Javamustenablethedevelopmentofsecure,highperformance,andhighlyrobustapplicationsonmultipleplatfo
6、rmsinheterogeneous,distributednetworks.Operatingonmultipleplatformsinheterogeneousnetworksinvalidatesthetraditionalschemesofbinarydistribution,release,upgrade,patch,andsoon.Tosurviveinthisjungle,Javamustbearchitectureneutral,portable,anddynamicallyadaptable.TheJavasystemthatemergedt
7、omeettheseneedsissimple,soitcanbeeasilyprogrammedbymostdevelopers;familiar,sothatcurrentdeveloperscaneasilylearnJava;objectoriented,totakeadvantageofmodernsoftwaredevelopmentmethodologiesandtofitintodistributedclient-serverapplications;multithreaded,forhighperformanceinapplicationst
8、hatneedtoperformmul
