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1、外文原文IntroductiontoJavaautor：MartinNgobye.source：ComputingStaticSliceforJavaProgramsJavaisdesignedtomeetthechallengesofapplicationdevelopmentinthecontextofheterogeneous,network-widedistributedenvironments.Paramountamongthesechallengesissecuredeliveryofapplicationsthatconsumetheminimumofsystemresourc
2、es,canrunonanyhardwareandsoftwareplatform,andcanbeextendeddynamically.Javaoriginatedaspartofaresearchprojecttodevelopadvancedsoftwareforawidevarietyofnetworkdevicesandembeddedsystems.Thegoalwastodevelopasmall,reliable,portable,distributed,real-timeoperatingplatform.Whentheprojectstarted,C++wasthela
3、nguageofchoice.ButovertimethedifficultiesencounteredwithC++grewtothepointwheretheproblemscouldbestbeaddressedbycreatinganentirelynewlanguageplatform.DesignandarchitecturedecisionsdrewfromavarietyoflanguagessuchasEiffel,SmallTalk,ObjectiveC,andCedar/Mesa.Theresultisalanguageplatformthathasprovenidea
4、lfordevelopingsecure,distributed,networkbasedend-userapplicationsinenvironmentsrangingfromnetwork-embeddeddevicestotheWorld-WideWebandthedesktop.ThedesignrequirementsofJavaaredrivenbythenatureofthecomputingenvironmentsinwhichsoftwaremustbedeployed.ThemassivegrowthoftheInternetandtheWorld-WideWeblea
5、dsustoacompletelynewwayoflookingatdevelopmentanddistributionofsoftware.Toliveintheworldofelectroniccommerceanddistribution,Javamustenablethedevelopmentofsecure,highperformance,andhighlyrobustapplicationsonmultipleplatformsinheterogeneous,distributednetworks.Operatingonmultipleplatformsinheterogeneo
6、usnetworksinvalidatesthetraditionalschemesofbinarydistribution,release,upgrade,patch,andsoon.Tosurviveinthisjungle,Javamustbearchitectureneutral,portable,anddynamicallyadaptable.TheJavasystemthatemergedtomeettheseneedsissimple,soitcanbeeasilyprogrammedbymostdevelopers;familiar,sothatcurrentdevelope
7、rscaneasilylearnJava;objectoriented,totakeadvantageofmodernsoftwaredevelopmentmethodologiesandtofitintodistributedclient-serverapplications;multithreaded,forhighperformanceinapplicationsthatneedtoperformmul
