tag:blogger.com,1999:blog-17725194116269861752024-09-24T16:34:02.786-07:00Maruf's BlogPlace Of Learning ,Open For AllKazi Mohammad Marufur Rashidhttp://www.blogger.com/profile/05914520966257454400noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-1772519411626986175.post-31719700681143801802012-05-05T09:03:00.001-07:002012-05-05T09:03:21.935-07:00Java Related Useful Information Part -1<br />
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<span style="font-family: Arial, sans-serif; font-size: 17pt;">Java (Programming Language):<o:p></o:p></span></div>
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<!--[if !supportLists]--><span style="font-family: Wingdings; mso-bidi-font-family: Wingdings; mso-fareast-font-family: Wingdings;">ð<span style="font-family: 'Times New Roman'; font-size: 7pt;">
</span></span><!--[endif]-->Java is a programming language originally
developed by <span style="color: red;">James Gosling</span> at Sun Microsystems
(which has since merged into Oracle Corporation) and released in <span style="color: red;">1995</span> as a core component of Sun Microsystems' Java
platform.</div>
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<!--[if !supportLists]--><span style="font-family: Wingdings; mso-bidi-font-family: Wingdings; mso-fareast-font-family: Wingdings;">ð<span style="font-family: 'Times New Roman'; font-size: 7pt;">
</span></span><!--[endif]-->Java applications are typically compiled to byte
code (class file) that can run on any Java Virtual Machine (JVM) regardless of
computer architecture.</div>
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<!--[if !supportLists]--><span style="font-family: Wingdings; mso-bidi-font-family: Wingdings; mso-fareast-font-family: Wingdings;">ð<span style="font-family: 'Times New Roman'; font-size: 7pt;">
</span></span><!--[endif]-->Java is a general-purpose, concurrent,
class-based, object-oriented language that is specifically designed to have as
few implementation dependencies as possible.</div>
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<!--[if !supportLists]--><span style="font-family: Wingdings; mso-bidi-font-family: Wingdings; mso-fareast-font-family: Wingdings;">ð<span style="font-family: 'Times New Roman'; font-size: 7pt;">
</span></span><!--[endif]-->It is intended to let application developers <span style="color: red;">"write once, run anywhere,"</span> meaning that
code that runs on one platform does not need to be edited to run on another.<br />
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<span style="font-size: 17.0pt;">J2EE
(Java 2 Platform Enterprise Edition):</span><span style="font-family: Arial, sans-serif; font-size: 17pt;"><o:p></o:p></span></div>
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<!--[if !supportLists]--><span style="font-family: Wingdings; mso-bidi-font-family: Wingdings; mso-fareast-font-family: Wingdings;">ð<span style="font-family: 'Times New Roman'; font-size: 7pt;">
</span></span><!--[endif]-->J2EE is widely used platform for developing,
building and deploying Web-based enterprise online applications.</div>
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<!--[if !supportLists]--><span style="font-family: Wingdings; mso-bidi-font-family: Wingdings; mso-fareast-font-family: Wingdings;">ð<span style="font-family: 'Times New Roman'; font-size: 7pt;">
</span></span><!--[endif]-->The J2EE platform consists of a set of <b>Services</b>, <b>APIs</b>, and <b>Protocols</b> that
provide the functionality for developing multitier, Web-based applications.</div>
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<span style="font-size: 17.0pt;">J2SE (Java 2 Standard Edition):</span><span style="font-family: Arial, sans-serif; font-size: 17pt;"><o:p></o:p></span></div>
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<!--[if !supportLists]--><span style="font-family: Wingdings; font-size: 10pt;">ð<span style="font-family: 'Times New Roman'; font-size: 7pt;">
</span></span><!--[endif]--><span style="font-family: Verdana, sans-serif; font-size: 10pt;">J2SE lets us develop and
deploy Java applications on desktops and servers, as well as today's demanding
embedded and Real-Time environments.<o:p></o:p></span></div>
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<!--[if !supportLists]--><span style="font-family: Wingdings; mso-bidi-font-family: Wingdings; mso-fareast-font-family: Wingdings;">ð<span style="font-family: 'Times New Roman'; font-size: 7pt;">
</span></span><!--[endif]-->It contains a good all-around mix of general
purpose libraries including JDBC (Java Database Connectivity), JNDI (Java
Naming Directory Interface), RMI (Remove Method Invocation), AWT, and Swing.</div>
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<span style="font-size: 17.0pt;">J2ME
(Java 2 Micro Edition):</span><span style="font-family: Arial, sans-serif; font-size: 17pt;"><o:p></o:p></span></div>
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<!--[if !supportLists]--><span style="font-family: Wingdings; mso-bidi-font-family: Wingdings; mso-fareast-font-family: Wingdings;">ð<span style="font-family: 'Times New Roman'; font-size: 7pt;">
</span></span><!--[endif]-->Formerly J2ME. It includes most of Java SE and
some additional APIs for handheld devices.</div>
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## The J2EE platform takes
advantage of many features of the Java 2 Platform, Standard Edition (J2SE),
such as "Write Once, Run Anywhere" portability, JDBC API for database
access, CORBA technology for interaction with existing enterprise resources,
and a security model that protects data even in internet applications. Building
on this base, the Java 2 Platform, Enterprise Edition adds full support for
Enterprise JavaBeans components, Java Servlets API, JavaServer Pages and XML
technology. The J2EE standard includes complete specifications and compliance
tests to ensure portability of applications across the wide range of existing
enterprise systems capable of supporting the J2EE platform. In addition, the
J2EE specification now ensures Web services interoperability through support
for the WS-I Basic Profile.</div>Kazi Mohammad Marufur Rashidhttp://www.blogger.com/profile/05914520966257454400noreply@blogger.com1