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ITP109_Week2 - ITP 109 Intro to Java Programming Week 2...

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1 ITP 109 Intro to Java Programming Week 2 Trina Gregory Spring 2010
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2 Examples http://www.6sense.com/applets/starwars/ http://java.sun.com/applets/other/ TumblingDuke/index.html
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3 Overview Recap of last lecture Basic computer components Different ways of writing and running programs – Compiled – Interpreted • Java – How does it work
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4 Recap Java – object-oriented programming language 3 different platforms for Java – Standard (J2SE) – Enterprise (J2EE) – Mobile (J2ME) Features of Java – Small, simple, easy to compile, powerful & flexible
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5 Benefits of Java • Object-oriented Improved on C++ • Security APIs (Application Programming Interface) – Lots of prewritten code • Distributed – Able to run over the network “Write once, run anywhere” – Platform independent
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6 Java Programs • Application – Runs natively on the system through the Java Virtual Machine (JVM) • Applet – Runs in a browser – Does smaller tasks • Programs – Both applets and applications are “Java programs”
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7 Basic Computer Components • Hardware – CPU, memory, secondary storage Operating System – Windows, Mac OS, Linux, Unix • Applications – Office, Photoshop, games
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8 What programs need to communicate?
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