Java课件合集(1-10章).ppt

1、Java语言程序设计语言程序设计课程提纲1.Java语言概述语言概述2.Java语言语法基础语言语法基础3.面向对象的特征面向对象的特征4.Applet及其应用及其应用5.图形用户界面设计图形用户界面设计6.异常异常7.线程线程8.集合操作集合操作9.Java输入输入/输出输出10.网络编程网络编程参考资料Java语言程序设计，吕凤翥、马皓编著，清华大学出版社Java编程思想，第2版，候捷译，计算机科学丛书，机械工业出版社TheJavaTutorial,apracticalguideforprogrammers,http:/ Java语言概述1.Java的发展2.什么是Java?3.Java程

2、序介绍4.Java程序运行环境Java的发展早期的历史1.1991年，SunMicrosystems公司建立“theGreenProject”(Secretly)，13个成员，目的开发消费电子类产品市场(嵌入式设备)，初始选择C+语言2.1992年夏天，*7设备，运行在一种全新的、对立于处理器的语言“Oak”，潜在的市场有线电视3.GreenTeamFirstPersonTeam(70人)，电视机顶盒/video-on-demand，市场不成熟?4.JamesGosling,BillJoy,andEricSchmidt“whynottheInternet?5.在Mosaic浏览器的基础上开发“

3、WebRunner”，“Hollywood-meets-Silicon-Valley”的两个演示(3D动态分子、线排序)Java的发展早期的历史6.Java面世1995年3月，“1.0a”7/8份二进制拷贝，“1.0a2”源代码公布在Internet下载数量和反馈邮件剧增OnMay23,1995,JohnGage,directoroftheScienceOfficeforSunMicrosystems,andMarcAndreessen,cofounderandexecutivevicepresidentatNetscapeTM,steppedontoastageandannouncedtot

4、heSunWorldaudiencethatJavaTMtechnologywasreal,itwasofficial,anditwasgoingtobeincorporatedintoNetscapeNavigatorTM,theworldsportaltotheInternet.Java的发展历史记录-WhoJames Gosling:Green Team original,FirstPerson employee,original member Java Products Group,lead engineer and keyarchitect of Java technologyBil

5、l Joy:Cofounder and vice president,Sun Microsystems,Inc.,principal designer of the University of California,Berkeley,version of the UNIX operating systemEric Schmidt:Former Sun Microsystems chief technical officer,Former Novell chairman and CEO,Chairman of the Board and CEO,Google Inc.Java的发展历史记录*7:

6、A new SPARC based,handheld wireless PDA,with a 5 color LCD with touchscreen inputJava的发展的主页的主页Java的发展五年回顾(19962000)1995年May23,Javatechnologylaunched1996年1.Jan23,JDK1.0softwarerelease2.May29,firstJavaOnedeveloperconference(JavaBeans,JavaMediaAPIs,servlets,etc)3.July10,50,000peopleattendSunJavaDayinTo

7、kyo4.Aug16,Sun/Addison-Wesley(TheJavaTutorialandthefirstJavaLanguageSpecification)5.Sep,83,000WebpageshaveincorporatedJavatechnology6.Oct25,SunannouncesfirstJust-In-Time(JIT)compilerforJavaplatform7.Oct29,JavaCardAPIannounced8.Dec9,JDK1.1betasoftwarereleasedJava的发展五年回顾(19962000)1997年1.Feb18,JDK1.1re

8、leaseships2.Mar4,JavaWebServerbetaandJavaServletDevelopersKitsoftwarereleased3.Mar10,JavaNamingandDirectoryInterface(JNDI)APIintroduced4.Mar11,Morethan220,000downloadsofJDK1.1softwareinjustthreeweeks5.Apr2,JavaOneconference(10,000attendees,theworldslargestdeveloperconference),EnterpriseJavaBeanstech

9、nology6.Aug5,JavaMediaandCommunicationAPIsreleased7.Aug5,Morethan100,000downloadsofJavaBeansDevelopmentKitsoftware8.Sep23,JavaDeveloperConnectionprogramhas100,000+membersJava的发展五年回顾(19962000)1998年1.Jan20,JDK1.1softwarereleasedownloadstop2million2.Mar24,JavaOneconferencedraws15,0003.Mar31,Ericsson,So

10、ny,Siemens,BEA,OpenTVandotherslicenseJavatechnology4.June3,VisalaunchesworldsfirstsmartcardbasedonVisasOpenPlatformandSunsJavaCardtechnology5.Nov5,SunworkswithLinuxCommunityonJava2softwareporttoLinux6.Dec8,Java2platformshipsJava的发展五年回顾(19962000)1999年1.Jan13,Majorconsumerelectronicsmanufacturerssuppo

11、rtJavatechnologyfordigitaltelevision2.Feb24,Java2platformsourcecodereleased3.Mar4,XMLsupportforJavaplatformunveiled4.Mar27,JavaHotSpotperformanceengineunveiled5.June2,JavaServerPagestechnologyunveiled6.June15,JavaOnedeveloperconferencedraws20,0007.June15,SunannouncesthreeeditionsofJavaplatform:J2SE,

12、J2EE,J2ME8.June29,J2EEReferenceImplementationAlphaships9.Aug25,J2SEversion1.3betasoftwarereleased10.Aug,TheJavaPhoneAPIspecificationincludedinanapprovedGSMstandardbytheEuropeanTelecommunicationsStandardsInstituteJava的发展五年回顾(19962000)1999年11.Sep30,J2EEbetasoftwarereleased12.Dec8,J2EEplatformships13.D

13、ec8,J2SEplatformonLinuxships2000年1.Apr19,J2EEplatformlicensedtoArtTechnologyGroup,BEASystems,Compaq,Hitachi,SilverStream,Sybase,.2.May,MembershipinJavaDeveloperConnectionprogramtops1.5million3.May8,SuntoworkwithChineseTVindustrytodefineinteractivedigitalTVspecforChinaTV4.May8,J2SEv.1.3platformreleas

14、ed5.May17,J2SEv1.3platformgainsindustrysupportfromApplewithMacOSX第一章Java语言概述1.Java的发展2.什么是Java?3.Java程序介绍4.Java程序运行环境什么是Java?JavaTechnology1.编程语言(ProgrammingLanguage)2.运行平台(Platform)什么是Java?Java编程语言的特点1.简单(Simple)2.面向对象(Objectoriented)3.解释性(Interpreted)4.平台独立和可移植(Architectureneutral&Portable)5.鲁棒和安全

15、(Robust&Secure)6.多线程(Multithreaded)7.分布式(Distributed)8.高性能(Highperformance)9.动态(Dynamic)Java编程语言的特点1.简单(Simple)简单易学不存在指针、单一继承、内存空间自动回收2.面向对象(Objectoriented)类和对象数据和方法的封装封装、继承、多态性注重于数据和操作数据的方法，而不是流3.解释性(Interpreted)Java编译器生成字节码，Java解释器执行字节码链接过程简单，仅仅将新的类装载(load)入运行环境什么是Java?Java编程语言的特点4.平台独立(Architectu

16、reneutral)和可移植(Portable)Java编译器产生的字节码(bytecode)可运行在异种网络环境中(不同的硬件系统和不同的操作系统)Java程序在不同的平台中行为一致，不存在数据类型的不一致等现象什么是Java?Java编程语言的特点5.鲁棒/健壮(Robust)和安全(Secure)取消了指针的不安全性，增强了程序的健壮性内存管理简单，“new”构造对象，对象释放(automaticgarbagecollection)可靠的语言:compile-timechecking和run-timechecking网络环境的应用不会产生恶意行为，为Java程序构造一个个(Sandbox，具有安全策略的限制)，提高了安全性什么是Java?Java编程语言的特点6.多线程(Multithreaded)例:浏览器应用中，播听音乐/拖动页面/后台下载页面线程类:java.lang.Thread/Runnable/ThreadGroup等原语支持:synchronized、wait()、notify()7.分布式(Distributed)支持网络应用,.*URL类Socket类、Serv