Explore topic-wise InterviewSolutions in Java Programming.

INFO: Full form for JAK is Java Api for Kml in Java Programming category
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INFO: Full form for JEL is Java Export Language in Java Programming category
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INFO: Full form for JEDI is Java Education Development Initiative in Java Programming category
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INFO: Full form for JEEP is Java Experimental Evolutionnary Programming in Java Programming category
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INFO: Full form for AJP is Apache Java Protocol in Java Programming category
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INFO: Full form for JSAPI is Java Speech Application Programming Interface in Java Programming category
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INFO: Full form for JCW is Java Callable Wrapper in Java Programming category
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INFO: Full form for EJC is Embedded Java Controller in Java Programming category
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INFO: Full form for JDB is Java Debugger Binary in Java Programming category
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INFO: Full form for JMS is Java Message Servlet in Java Programming category
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INFO: Full form for JPI is Java Plug In in Java Programming category
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INFO: Full form for JPF is Java Preferences File in Java Programming category
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INFO: Full form for JNT is Java Natural Testing in Java Programming category
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INFO: Full form for JESSICA is Java Enable Single System Image Computing Architecture in Java Programming category
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INFO: Full form for JACK is Java Applet Correctness Kit in Java Programming category
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INFO: Full form for JAAS is Java Authentication and Authorization Services in Java Programming category
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INFO: Full form for JAAS is Java Authentification and Authorization Service in Java Programming category
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INFO: Full form for PJW is Persistence and Java Workshop in Java Programming category
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INFO: Full form for JMV is Java Molecular Viewer in Java Programming category
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INFO: Full form for JFU is Java File Uploader in Java Programming category
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INFO: Full form for JEB is Java Extesion Base in Java Programming category
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INFO: Full form for JEB is Java Extension Base in Java Programming category
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INFO: Full form for JC is Java C in Java Programming category
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Java is a set of computer software and specifications developed by James Gosling at Sun Microsystems, which was later acquired by the Oracle Corporation, that provides a system for developing application software and deploying it in a cross-platform computing environment. Java is used in a wide variety of computing platforms from embedded devices and mobile phones to enterprise servers and supercomputers. Java applets, which are less common than standalone Java applications, were commonly run in secure, sandboxed environments to provide many features of native applications through being embedded in HTML pages.

Writing in the Java programming language is the primary way to produce code that will be deployed as byte code in a Java virtual machine (JVM); byte code compilers are also available for other languages, including Ada, JavaScript, Python, and Ruby. In addition, several languages have been designed to run natively on the JVM, including Clojure, Groovy, and Scala. Java syntax borrows heavily from C and C++, but object-oriented features are modeled after Smalltalk and Objective-C. Java eschews certain low-level constructs such as pointers and has a very simple memory model where objects are allocated on the heap (while some implementations e.g. all currently supported by Oracle, may use escape analysis optimization to allocate on the stack instead) and all variables of object types are references. Memory management is handled through integrated automatic garbage collection performed by the JVM.

On November 13, 2006, Sun Microsystems made the bulk of its implementation of Java available under the GNU General Public License (GPL).

The latest version is Java 17, released in September 2021. As an open source platform, Java has many distributors, including Amazon, IBM, Azul Systems, and AdoptOpenJDK. Distributions include Amazon Corretto, Zulu, AdoptOpenJDK, and Liberica. Regarding Oracle, it distributes Java 8, and also makes available e.g. Java 11, a currently supported long-term support (LTS) version, released on September 25, 2018. Oracle (and others) "highly recommend that you uninstall older versions of Java" than Java 8, because of serious risks due to unresolved security issues. Since Java 9 (and 10, 12, 13, 14, 15 and 16) is no longer supported, Oracle advises its users to "immediately transition" to a supported version. Oracle released the last free-for-commercial-use public update for the legacy Java 8 LTS in January 2019, and will continue to support Java 8 with public updates for personal use indefinitely. Oracle extended support for Java 6 ended in December 2018.

INFO: Full form for JCR is Java Code Reviewer in Java Programming category
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INFO: Full form for JNB is Java News Brief in Java Programming category
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INFO: Full form for JS is Javascript Surprisingly in Java Programming category
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INFO: Full form for JS is Java Scripts in Java Programming category
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INFO: Full form for JS is Javascript The Students in Java Programming category
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INFO: Full form for JS is Java Serialization in Java Programming category
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INFO: Full form for JS is Javascript Sgi in Java Programming category
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INFO: Full form for JSP is Java Servlet Pages in Java Programming category
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The Java Portlet Specification defines a contract between the portlet container and portlets and provides a convenient programming model for Java portlet developers.

Portlets are pluggable user interface software components that are managed and displayed in a web portal, for example an enterprise portal or a web CMS. A portlet can aggregate (integrate) and personalize content from different sources within a web page. A portlet responds to requests from a web client with and generates dynamic content.

Portlets produce fragments of markup (HTML, XHTML, WML) that are aggregated into a portal. Typically, following the desktop metaphor, a portal page is displayed as a collection of non-overlapping portlet windows, where each portlet window displays a portlet. Hence a portlet (or collection of portlets) resembles a web-based application that is hosted in a portal.

Some examples of portlet applications are e-mail, weather reports, discussion forums, and news.

A portlet is managed by a portlet container. Portlet standards platform independent application programming interfaces that are intended to enable software developers to create portlets that can be plugged into any portal supporting the standards. An example is the Java Portlet Specification. A Java portlet resembles a Java Servlet, but produces fragments rather than complete documents, and is not bound by a URL.

A portlet container runs portlets and provides them with the required runtime environment. A portlet container contains portlets and manages their life cycles. It also provides persistent storage mechanisms for the portlet preferences. A portlet container receives requests from the portal to execute requests on the portlets hosted by it. A portlet container is not responsible for aggregating the content produced by the portlets; the portal itself handles aggregation. A portal and a portlet container can be built together as a single component of an application suite or as two separate components of a portal application.

INFO: Full form for JFC is Java Fountation Class in Java Programming category
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INFO: Full form for JFC is Java Foundation Class in Java Programming category
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INFO: Full form for JPT is Java Power Tools in Java Programming category
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INFO: Full form for JSD is Javascript Schema Definition in Java Programming category
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JDK Mission Control is an open source tools suite for the Java virtual machine. The tools help finding problems in, and optimizing, programs running on the JVM in production. JDK Mission Control supports OpenJDK 11 (and above) and Oracle JDK 7u40 (and above).

JDK Mission Control primarily consists of the following tools:

There are also various plug-ins available, such as:

INFO: Full form for JUG is Java User Groups in Java Programming category
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INFO: Full form for JRE is Java Runs Efficiently in Java Programming category
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INFO: Full form for JRE is A Java Runtime Executable in Java Programming category
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INFO: Full form for JES is Java Embedded Server in Java Programming category
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INFO: Full form for JDBC is Java Data Base C in Java Programming category
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INFO: Full form for JDBC is A Java Daemon Blocked Connections in Java Programming category
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INFO: Full form for AJAX is Asynchronous Javascript and Xmlthe in Java Programming category
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