02 what is java

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02 what is java

  1. 1. What is Java?<br />DhrubojyotiKayal<br />
  2. 2. Truth and myths<br />Java versions<br />Topics<br />
  3. 3. A simple and powerful programming language<br />Derived from C/C++ <br />Pure OOPL<br />Java is for desktop, web, network, multithreaded application development<br />Java is not slow<br />Java is safe runs in an sandbox – JVM<br />Cross platform<br />Standard set of libraries<br />Open source add-ons <br />Truths and Myths<br />
  4. 4. Popularity<br />
  5. 5. This is what people commonly called Java<br />Versions <br />1.0 – 1.4 - 1995 – 2002<br />1.5 – or Java 5 – 2004<br />Java 6 – Sept 2006<br />Desktop applications<br />Applets applications<br />Core on which all web based or any other Java applications are build<br />Standard Edition (SE)<br />
  6. 6. This is Java running on application server, web server<br />J2EE – till Java 1.4<br />JEE 5 – JSE 5<br />JEE 6 – JSE 6<br />JSP, Servlets, JSF, Struts, Spring, EJB, Hibernate etc etc……<br />Enterprise Edition (EE)<br />
  7. 7. Programming for small footprint applications<br />Mobile platform, embedded apps, printers etc<br />Almost dead now thanks to ORACLE and emergence of Android<br />Micro Edition (ME)<br />
  8. 8. Q&A<br />

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