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</style><table class="sidebar nomobile nowraplinks"><tbody><tr><th class="sidebar-title"><a href="Java_(software_platform)" title="Java (software platform)">Java platform</a> editions</th></tr><tr><td class="sidebar-image"><span typeof="mw:File"></span></td></tr><tr><td class="sidebar-content" style="text-align: left">

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<li><a href="Java_Platform%2C_Micro_Edition" title="Java Platform, Micro Edition">Java ME</a> (Micro Edition)</li>

<li><a href="Java_Platform%2C_Standard_Edition" title="Java Platform, Standard Edition">Java SE</a> (Standard Edition)</li>

<li><a href="Jakarta_EE" title="Jakarta EE">Jakarta EE</a> (Enterprise Edition)</li>

<li><a href="JavaFX" title="JavaFX">JavaFX</a> (bundled in Oracle's JDK from versions 8 to 10 but separately since 11)</li>

<li><a href="PersonalJava" title="PersonalJava">PersonalJava</a> (Discontinued)</li></ul></td>

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<p><b>Java Card</b> is a software technology that allows <a href="Java_platform" class="mw-redirect" title="Java platform">Java</a>-based applications (<a href="Applet" title="Applet">applets</a>) to be run securely on <a href="Smart_card" title="Smart card">smart cards</a> and more generally on similar secure small <a href="Memory_footprint" title="Memory footprint">memory footprint</a> devices<sup id="cite_ref-Chen_2000_1-0" class="reference"><a href="#cite_note-Chen_2000-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> which are called "secure elements" (SE). Today, a secure element is not limited to its smart cards and other removable cryptographic tokens form factors; embedded SEs soldered onto a device board and new security designs embedded into general purpose chips are also widely used. Java Card addresses this hardware fragmentation and specificities while retaining code portability brought forward by Java.

</p><p>Java Card is the tiniest of Java platforms targeted for embedded devices. Java Card gives the user the ability to program the devices and make them application specific. It is widely used in different markets: wireless telecommunications within SIM cards and embedded SIM, payment within banking cards<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> and NFC mobile payment and for identity cards, healthcare cards, and passports. Several IoT products like gateways are also using Java Card based products to secure communications with a cloud service for instance.

</p><p>The first Java Card was introduced in 1996 by <a href="Schlumberger_Limited" class="mw-redirect" title="Schlumberger Limited">Schlumberger</a>'s card division which later merged with <a href="Gemplus" class="mw-redirect" title="Gemplus">Gemplus</a> to form <a href="Gemalto" title="Gemalto">Gemalto</a>. Java Card products are based on the specifications by <a href="Sun_Microsystems" title="Sun Microsystems">Sun Microsystems</a> (later a <a href="Subsidiary" title="Subsidiary">subsidiary</a> of <a href="Oracle_Corporation" title="Oracle Corporation">Oracle Corporation</a>). Many Java card products also rely on the GlobalPlatform specifications for the secure management of applications on the card (download, installation, personalization, deletion).

</p><p>The main design goals of the Java Card technology are portability, security and backward compatibility.<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup>

</p>

<div class="mw-heading mw-heading2"><h2 id="Portability">Portability</h2></div>

<p>Java Card aims at defining a standard <a href="Smart_card" title="Smart card">smart card</a> computing environment allowing the same Java Card applet to run on different smart cards, much like a Java applet runs on different computers. As in Java, this is accomplished using the combination of a virtual machine (the Java Card Virtual Machine), and a well-defined runtime library, which largely abstracts the applet from differences between smart cards. Portability remains mitigated by issues of memory size, performance, and runtime support (e.g. for communication protocols or cryptographic algorithms). Moreover, vendors often expose proprietary <a href="API" title="API">APIs</a> specific to their ecosystem, further limiting portability for applets that rely on such calls.

To address these limitations, Vasilios Mavroudis and Petr Svenda introduced JCMathLib, an open-source cryptographic wrapper library for Java Card, enabling low-level cryptographic computations not supported by the standard API.<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup>

</p>

<div class="mw-heading mw-heading2"><h2 id="Security">Security</h2></div>

<p>Java Card technology was originally developed for the purpose of securing sensitive information stored on <a href="Smart_card" title="Smart card">smart cards</a>. Security is determined by various aspects of this technology:

</p>

<dl><dt>Data encapsulation</dt>

<dd>Data is stored within the application, and Java Card applications are executed in an isolated environment (the Java Card VM), separate from the underlying <a href="Operating_system" title="Operating system">operating system</a> and hardware.</dd>

<dt>Applet firewall</dt>

<dd>Unlike other Java VMs, a Java Card VM usually manages several applications, each one controlling sensitive data. Different applications are therefore separated from each other by an applet firewall which restricts and checks access of data elements of one applet to another.</dd>

<dt>Cryptography</dt>

<dd>Commonly used symmetric key algorithms like <a href="Data_Encryption_Standard" title="Data Encryption Standard">DES</a>, <a href="Triple_DES" title="Triple DES">Triple DES</a>, <a href="Advanced_Encryption_Standard" title="Advanced Encryption Standard">AES</a>, and asymmetric key algorithms such as <a href="RSA_(algorithm)" class="mw-redirect" title="RSA (algorithm)">RSA</a>, <a href="Elliptic_curve_cryptography" class="mw-redirect" title="Elliptic curve cryptography">elliptic curve cryptography</a> are supported as well as other cryptographic services like signing, key generation and key exchange.</dd>

<dt>Applet</dt>

<dd>The applet is a state machine which processes only incoming command requests and responds by sending data or response status words back to the interface device.</dd></dl>

<div class="mw-heading mw-heading2"><h2 id="Design">Design</h2></div>

<p>At the language level, Java Card is a precise subset of Java: all language constructs of Java Card exist in Java and behave identically. This goes to the point that as part of a standard build cycle, a Java Card program is compiled into a Java class file by a Java compiler; the class file is post-processed by tools specific to the Java Card platform.

</p><p>However, many Java language features are not supported by Java Card (in particular types char, double, float and long; the <a href="Transient_(computer_programming)" title="Transient (computer programming)"><code>transient</code></a> qualifier; enums; arrays of more than one dimension; finalization; object cloning; threads). Further, some common features of Java are not provided at runtime by many actual smart cards (in particular type <code>int</code>, which is the default type of a Java expression; and garbage collection of objects).

</p>

<div class="mw-heading mw-heading3"><h3 id="Bytecode">Bytecode</h3></div>

<p>Java Card bytecode run by the Java Card Virtual Machine is a functional subset of <a href="Java_bytecode" title="Java bytecode">Java 2 bytecode</a> run by a standard Java Virtual Machine but with a different encoding to optimize for size. A Java Card applet thus typically uses less bytecode than the hypothetical Java applet obtained by compiling the same Java source code. This conserves memory, a necessity in resource constrained devices like smart cards. As a design tradeoff, there is no support for some Java language features (as mentioned above), and size limitations. Techniques exist for overcoming the size limitations, such as dividing the application's code into packages below the 64 <a href="Kibibyte" class="mw-redirect" title="Kibibyte">KiB</a> limit.

</p>

<div class="mw-heading mw-heading3"><h3 id="Library_and_runtime">Library and runtime</h3></div>

<p>Standard Java Card class library and runtime support differs a lot from that in Java, and the common subset is minimal. For example, the Java Security Manager class is not supported in Java Card, where security policies are implemented by the Java Card Virtual Machine; and transients (non-persistent, fast RAM variables that can be class members) are supported via a Java Card class library, while they have native language support in Java.

</p>

<div class="mw-heading mw-heading3"><h3 id="Specific_features">Specific features</h3></div>

<p>The Java Card runtime and virtual machine also support features that are specific to the Java Card platform:

</p>

<dl><dt>Persistence</dt>

<dd>With Java Card, objects are by default stored in persistent memory (RAM is very scarce on smart cards, and it is only used for temporary or security-sensitive objects). The runtime environment as well as the bytecode have therefore been adapted to manage persistent objects.</dd>

<dt>Atomicity</dt>

<dd>As smart cards are externally powered and rely on persistent memory, persistent updates must be atomic. The individual write operations performed by individual bytecode instructions and API methods are therefore guaranteed atomic, and the Java Card Runtime includes a limited transaction mechanism.</dd>

<dt>Applet isolation</dt>

<dd>The Java Card firewall is a mechanism that isolates the different applets present on a card from each other. It also includes a sharing mechanism that allows an applet to explicitly make an object available to other applets.</dd></dl>

<div class="mw-heading mw-heading3"><h3 id="Development">Development</h3></div>

<p>Coding techniques used in a practical Java Card program differ significantly from those used in a Java program. Still, that Java Card uses a precise subset of the Java language speeds up the learning curve, and enables using a Java environment to develop and debug a Java Card program (caveat: even if debugging occurs with Java bytecode, make sure that the class file fits the limitation of Java Card language by converting it to Java Card bytecode; and test in a real Java Card smart card early on to get an idea of the performance); further, one can run and debug both the Java Card code for the application to be embedded in a smart card, and a Java application that will be in the host using the smart card, all working jointly in the same environment.

</p>

<div class="mw-heading mw-heading2"><h2 id="Versions">Versions</h2></div>

<p>Oracle has released several Java Card platform specifications and is providing SDK tools for application development.

Usually smart card vendors implement just a subset of algorithms specified in Java Card platform target

and the only way to discover what subset of specification is implemented is to test the card.<sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup>

</p>

<ul><li>Version 3.2 (30.01.2023)<sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup>

<ul><li>Introduced support for (D)TLS1.3 protocols</li>

<li>Added API clarifications to help application developers and significantly increase the level of interoperability across multiple implementations</li></ul></li>

<li>Version 3.1 (17.12.2018)<sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup>

<ul><li>Added configurable key pair generation support, named elliptic curves support, new algorithms and operations support, additional AES modes and Chinese algorithms.</li></ul></li>

<li>Version 3.0.5 (03.06.2015)

<ul><li>Oracle SDK: Java Card Classic Development Kit 3.0.5u1 (03.06.2015)</li>

<li>Added support for Diffie-Hellman modular exponentiation, Domain Data Conservation for Diffie-Hellman, Elliptic Curve and DSA keys, RSA-3072, SHA3, plain ECDSA, AES CMAC, AES CTR.</li></ul></li>

<li>Version 3.0.4 (06.08.2011)

<ul><li>Oracle SDK: Java Card Classic Development Kit 3.0.4 (06.11.2011)</li>

<li>Added support for DES MAC8 ISO9797.</li></ul></li>

<li>Version 3.0.1 (15.06.2009)

<ul><li>Oracle SDK: Java Card Development Kit 3.0.3 RR (11.11.2010)</li>

<li>Added support for SHA-224, SHA-2 for all signature algorithms.</li></ul></li>

<li>Version 2.2.2 (03.2006)

<ul><li>Oracle SDK: Java Card Development Kit 2.2.2 (03.2006)</li>

<li>Added support for SHA-256, SHA-384, SHA-512, ISO9796-2, HMAC, Korean SEED MAC NOPAD, Korean SEED NOPAD.</li></ul></li>

<li>Version 2.2.1 (10.2003)

<ul><li>Oracle SDK: Java Card Development Kit 2.2.1 (10.2003)</li></ul></li>

<li>Version 2.2 (11.2002)

<ul><li>Added support for AES cryptography key encapsulation, CRC algorithms, Elliptic Curve Cryptography key encapsulation,Diffie-Hellman key exchange using ECC, ECC keys for binary polynomial curves and for prime integer curves, AES, ECC and RSA with variable key lengths.</li></ul></li>

<li>Version 2.1.1 (18.05.2000)

<ul><li>Oracle SDK: Java Card Development Kit 2.1.2 (05.04.2001)</li>

<li>Added support for RSA without padding.</li></ul></li>

<li>Version 2.1 (07.06.1999)</li></ul>

<p>The version 3.0 of the Java Card specification (draft released in March 2008) is separated in two editions: the <i>Classic Edition</i> and the <i>Connected Edition</i>.<sup id="cite_ref-Samoylov_2018_p._13_10-0" class="reference"><a href="#cite_note-Samoylov_2018_p._13-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup>

</p>

<ul><li>The <i>Classic Edition</i> (currently at version 3.0.5 released in June 2015) is an evolution of the Java Card Platform version 2 (which last version 2.2.2 was released in March 2006), which supports traditional card applets on resource-constrained devices such as Smart Cards. Older applets are generally compatible with newer Classic Edition devices, and applets for these newer devices can be compatible with older devices if not referring to new library functions. Smart Cards implementing Java Card Classic Edition have been security-certified by multiple vendors, and are commercially available.</li>

<li>The <i>Connected Edition</i> (currently at version 3.0.2 released in December 2009) aims to provide a new virtual machine and an enhanced execution environment with network-oriented features. Applications can be developed as classic card applets requested by <a href="Smart_card_application_protocol_data_unit" title="Smart card application protocol data unit">APDU</a> commands or as servlets using <a href="HTTP" title="HTTP">HTTP</a> to support web-based schemes of communication (<a href="HTML" title="HTML">HTML</a>, <a href="REST" title="REST">REST</a>, <a href="SOAP" title="SOAP">SOAP</a> ...) with the card. The runtime uses a subset of the Java (1.)6 bytecode, without Floating Point; it supports volatile objects (<a href="Garbage_collection_(computer_science)" title="Garbage collection (computer science)">garbage collection</a>), <a href="Thread_(computer_science)" class="mw-redirect" title="Thread (computer science)">multithreading</a>, inter-application communications facilities, <a href="Persistence_(computer_science)" title="Persistence (computer science)">persistence</a>, <a href="Transaction_processing" title="Transaction processing">transactions</a>, card management facilities ... As of 2021, there has been little adoption in commercially available Smart Cards, so much that reference to Java Card (including in the present Wikipedia page) often implicitly excludes the <i>Connected Edition</i>.</li></ul>

<p>Java Card 3.1 was released in January 2019.

</p>

<div class="mw-heading mw-heading3"><h3 id="New_CAP_file_Format_and_Applet_Deployment_Model">New CAP file Format and Applet Deployment Model</h3></div>

<ul><li>Applet functionality can be split into multiple Java packages</li>

<li>CAP file sizes can exceed 64KB</li></ul>

<div class="mw-heading mw-heading3"><h3 id="New_I/O_Framework_and_Trusted_Peripherals">New I/O Framework and Trusted Peripherals</h3></div>

<ul><li>A variety of physical layers and application protocol is supported, beyond smart card protocols defined in <a href="ISO/IEC_7816" title="ISO/IEC 7816">ISO 7816</a></li>

<li>Logical access to device peripherals by secure element applications is facilitated</li></ul>

<div class="mw-heading mw-heading3"><h3 id="Core_Platform_Enhancements">Core Platform Enhancements</h3></div>

<ul><li>Array Views (views on a subset of an array), Static Resources embedded within a CAP file and Improved API extensibility</li></ul>

<div class="mw-heading mw-heading3"><h3 id="Security_Services">Security Services</h3></div>

<ul><li>Certificate API, Key Derivation API, Monotonic Counter API, System Time API</li></ul>

<div class="mw-heading mw-heading3"><h3 id="New_Cryptographic_Extensions">New Cryptographic Extensions</h3></div>

<ul><li>Configurable Key Pair generation, Named Elliptic Curves like <a href="Edwards_curve" title="Edwards curve">Edwards-Curves</a>, Additional AES modes (<a href="CFB_mode" class="mw-redirect" title="CFB mode">CFB</a> & <a href="XTS_mode" class="mw-redirect" title="XTS mode">XTS</a>), Chinese Algorithms (SM2 - SM3 - <a href="SM4_(cipher)" title="SM4 (cipher)">SM4</a>)</li></ul>

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<ul><li><a href="Java_Card_OpenPlatform" title="Java Card OpenPlatform">Java Card OpenPlatform</a></li></ul>

<div class="mw-heading mw-heading2"><h2 id="References">References</h2></div>

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</style><cite id="CITEREFChen2000" class="citation book cs1">Chen, Z. (2000). <span class="id-lock-registration" title="Free registration required"><a rel="nofollow" class="external text" href="https://archive.org/details/javacardtmtechno00zhiq"><i>Java Card Technology for Smart Cards: Architecture and Programmer's Guide</i></a></span>. Addison-Wesley Java Series. Addison-Wesley. <a href="ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <bdi>978-0-201-70329-0</bdi><span class="reference-accessdate">. Retrieved <span class="nowrap">9 April</span> 2019</span>.</cite></span>

</li>

<li id="cite_note-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-2">^</a></b></span> <span class="reference-text"><cite id="CITEREFOracle_Learning_Library2013" class="citation cs2">Oracle Learning Library (2013-01-30), <a rel="nofollow" class="external text" href="https://www.youtube.com/watch?v=khgT5dwKvOo"><i>Developing Java Card Applications</i></a>, <a rel="nofollow" class="external text" href="https://ghostarchive.org/varchive/youtube/20211213/khgT5dwKvOo">archived</a> from the original on 2021-12-13<span class="reference-accessdate">, retrieved <span class="nowrap">2019-04-18</span></span></cite></span>

</li>

<li id="cite_note-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-3">^</a></b></span> <span class="reference-text"><cite id="CITEREFAhmed_PatelKenan_KalajdzicLaleh_GolafshanMona_Taghavi2011" class="citation journal cs1">Ahmed Patel; Kenan Kalajdzic; Laleh Golafshan; Mona Taghavi (2011). <span class="id-lock-subscription" title="Paid subscription required"><a rel="nofollow" class="external text" href="http://www.igi-global.com/article/international-journal-information-security-privacy/58979">"Design and Implementation of a Zero-Knowledge Authentication Framework for Java Card"</a></span>. <i>International Journal of Information Security and Privacy</i>. <b>5</b> (3). IGI: <span class="nowrap">1–</span>18. <a href="Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.4018%2Fijisp.2011070101">10.4018/ijisp.2011070101</a>.</cite></span>

</li>

<li id="cite_note-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-4">^</a></b></span> <span class="reference-text"><cite id="CITEREFMavroudisSvenda2020" class="citation conference cs1">Mavroudis, Vasilios; Svenda, Petr (2020). "JCMathLib: Wrapper Cryptographic Library for Transparent and Certifiable JavaCard Applets". <i>2020 IEEE European Symposium on Security and Privacy Workshops (EuroS&PW)</i>. IEEE. pp. <span class="nowrap">383–</span>390. <a href="ArXiv_(identifier)" class="mw-redirect" title="ArXiv (identifier)">arXiv</a>:<span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://arxiv.org/abs/2008.11362">2008.11362</a></span>. <a href="Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1109%2FEuroSPW51379.2020.00056">10.1109/EuroSPW51379.2020.00056</a>.</cite></span>

</li>

<li id="cite_note-5"><span class="mw-cite-backlink"><b><a href="#cite_ref-5">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://github.com/OpenCryptoProject/JCMathLib">"JCMathLib"</a>. <i>GitHub</i><span class="reference-accessdate">. Retrieved <span class="nowrap">2025-04-12</span></span>.</cite></span>

</li>

<li id="cite_note-6"><span class="mw-cite-backlink"><b><a href="#cite_ref-6">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.youtube.com/watch?v=vd0-Uhx2OoQ">"OpenCrypto: Unchaining the JavaCard Ecosystem"</a>. <i>YouTube</i><span class="reference-accessdate">. Retrieved <span class="nowrap">2025-04-12</span></span>.</cite></span>

</li>

<cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.fi.muni.cz/~xsvenda/jcsupport.html">"JCAlgTest - database of supported JavaCard algorithms"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">27 January</span> 2016</span>.</cite></span>

</li>

<li id="cite_note-8"><span class="mw-cite-backlink"><b><a href="#cite_ref-8">^</a></b></span> <span class="reference-text"><cite id="CITEREFPonsini2023" class="citation web cs1">Ponsini, Nicolas (30 January 2023). <a rel="nofollow" class="external text" href="https://blogs.oracle.com/java/post/announcing-java-card-32-release">"Announcing Java Card 3.2 Release"</a>. <i>Java Card Blog</i><span class="reference-accessdate">. Retrieved <span class="nowrap">6 February</span> 2023</span>.</cite></span>

</li>

<li id="cite_note-9"><span class="mw-cite-backlink"><b><a href="#cite_ref-9">^</a></b></span> <span class="reference-text"><cite id="CITEREFPonsini" class="citation web cs1">Ponsini, Nicolas. <a rel="nofollow" class="external text" href="https://blogs.oracle.com/javaiot/unveiling-java-card-31%3A-new-cryptograpic-extensions">"Unveiling Java Card 3.1: New Cryptographic Extensions"</a>. <i>blogs.oracle.com</i><span class="reference-accessdate">. Retrieved <span class="nowrap">2019-04-18</span></span>.</cite></span>

</li>

<li id="cite_note-Samoylov_2018_p._13-10"><span class="mw-cite-backlink"><b><a href="#cite_ref-Samoylov_2018_p._13_10-0">^</a></b></span> <span class="reference-text"><cite id="CITEREFSamoylov2018" class="citation book cs1">Samoylov, N. (2018). <a rel="nofollow" class="external text" href="https://books.google.com/books?id=lOpgDwAAQBAJ&pg=PA13"><i>Introduction to Programming: Learn to program in Java with data structures, algorithms, and logic</i></a>. Packt Publishing. p. 13. <a href="ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <bdi>978-1-78883-416-2</bdi><span class="reference-accessdate">. Retrieved <span class="nowrap">9 April</span> 2019</span>.</cite></span>

</li>

</ol></div>

<div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2></div>

<ul><li><a rel="nofollow" class="external text" href="https://www.oracle.com/java/technologies/java-card-tech.html">Java Card overview</a> (Oracle)</li>

<li><a rel="nofollow" class="external text" href="https://www.youtube.com/watch?v=31D94QOo2gY"><span class="">Defcon 21: The Secret Life of SIM Cards</span></a> on <a href="YouTube_video_(identifier)" class="mw-redirect" title="YouTube video (identifier)">YouTube</a></li>

<li><a rel="nofollow" class="external text" href="https://github.com/OpenSC/OpenSC/wiki/JavaCards">JavaCards-OpenSC</a></li>

</ul>

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</style></div><div role="navigation" class="navbox" aria-labelledby="Java_(software_platform)419" style="padding:3px"><table class="nowraplinks mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="3"><div id="Java_(software_platform)419" style="font-size:114%;margin:0 4em"><a href="Java_(software_platform)" title="Java (software platform)">Java (software platform)</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">Platforms</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">

<li><a href="Java_Platform%2C_Micro_Edition" title="Java Platform, Micro Edition">Java ME</a> (Micro)</li>

<li><a href="Java_Platform%2C_Standard_Edition" title="Java Platform, Standard Edition">Java SE</a> (Standard)</li>

<li><a href="Jakarta_EE" title="Jakarta EE">Jakarta EE</a> (Enterprise)</li>

<li><a href="Android_software_development#SDK" title="Android software development">Android SDK</a></li>

<li><a href="GraalVM" title="GraalVM">GraalVM</a></li></ul>

</div></td><td class="noviewer navbox-image" rowspan="5" style="width:1px;padding:0 0 0 2px"><div><span typeof="mw:File"></span></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Technologies</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">Oracle</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Squawk_virtual_machine" title="Squawk virtual machine">Squawk</a></li>

<li><a href="Java_Development_Kit" title="Java Development Kit">Java Development Kit</a></li>

<li><a href="OpenJDK" title="OpenJDK">OpenJDK</a></li>

<li><a href="Java_virtual_machine" title="Java virtual machine">Java virtual machine</a></li>

<li><a href="JavaFX" title="JavaFX">JavaFX</a></li>

<li><a href="Maxine_Virtual_Machine" title="Maxine Virtual Machine">Maxine VM</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Platform</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Java_applet" title="Java applet">Applets</a></li>

<li><a href="Jakarta_Servlet" title="Jakarta Servlet">Servlets</a></li>

<li><a href="MIDlet" title="MIDlet">MIDlets</a></li>

<li><a href="Java_Web_Start" title="Java Web Start">Web Start</a> (JNLP)</li>

<li><a href="Java_Platform_Module_System" title="Java Platform Module System">Modules</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Major<br>third-party</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Blackdown_Java" title="Blackdown Java">Blackdown</a></li>

<li><a href="Eclipse_(software)" title="Eclipse (software)">Eclipse</a></li>

<li><a href="GNU_Classpath" title="GNU Classpath">GNU Classpath</a></li>

<li><a href="Apache_Harmony" title="Apache Harmony">Harmony</a></li>

<li><a href="Hibernate_(framework)" title="Hibernate (framework)">Hibernate</a></li>

<li><a href="IcedTea" title="IcedTea">IcedTea</a></li>

<li><a href="Jazelle" title="Jazelle">Jazelle</a></li>

<li><a href="Spring_Framework" title="Spring Framework">Spring</a></li>

<li><a href="Apache_Struts" title="Apache Struts">Struts</a></li>

<li><a href="Oracle_TopLink" title="Oracle TopLink">TopLink</a></li>

<li><a href="WildFly" title="WildFly">WildFly</a></li></ul>

</div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">History</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Java_version_history" title="Java version history">Java version history</a></li>

<li><a href="Java_Community_Process" title="Java Community Process">Java Community Process</a></li>

<li><a href="Sun_Microsystems" title="Sun Microsystems">Sun Microsystems</a></li>

<li><a href="Free_Java_implementations" title="Free Java implementations">Free Java implementations</a></li>

<li>Slogan: <i><a href="Write_once%2C_run_anywhere" title="Write once, run anywhere">Write once, run anywhere</a></i></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="List_of_JVM_languages" title="List of JVM languages">JVM<br>languages</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">

<li><a href="BeanShell" title="BeanShell">BeanShell</a></li>

<li><a href="Clojure" title="Clojure">Clojure</a></li>

<li><a href="Groovy_(programming_language)" class="mw-redirect" title="Groovy (programming language)">Groovy</a></li>

<li><a href="JRuby" title="JRuby">JRuby</a></li>

<li><a href="Jython" title="Jython">Jython</a></li>

<li><a href="Kotlin_(programming_language)" title="Kotlin (programming language)">Kotlin</a></li>

<li><a href="Processing" title="Processing">Processing</a></li>

<li><a href="Rhino_(JavaScript_engine)" title="Rhino (JavaScript engine)">Rhino</a></li>

<li><a href="Scala_(programming_language)" title="Scala (programming language)">Scala</a></li>

<li><a href="Oxygene_(programming_language)" title="Oxygene (programming language)">Oxygene</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Community</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">Conferences</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="JavaOne" title="JavaOne">JavaOne</a></li>

<li><a href="Devoxx" title="Devoxx">Devoxx</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Organizations</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Apache_Software_Foundation" class="mw-redirect" title="Apache Software Foundation">Apache Software Foundation</a></li>

<li><a href="Eclipse_Foundation" title="Eclipse Foundation">Eclipse Foundation</a></li>

<li><a href="Java_Community_Process" title="Java Community Process">Java Community Process</a></li>

<li><a href="Oracle_Corporation" title="Oracle Corporation">Oracle Corporation</a></li>

<li><a href="Sun_Microsystems" title="Sun Microsystems">Sun Microsystems</a>, <a href="Sun_Microsystems_Laboratories" class="mw-redirect" title="Sun Microsystems Laboratories">Sun Microsystems Laboratories</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">People</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="James_Gosling" title="James Gosling">James Gosling</a></li>

<li><a href="Arthur_van_Hoff" title="Arthur van Hoff">Arthur van Hoff</a></li>

<li><a href="Urs_H%C3%B6lzle" title="Urs Hölzle">Urs Hölzle</a></li>

<li><a href="Patrick_Naughton" title="Patrick Naughton">Patrick Naughton</a></li></ul>

</div></td></tr></tbody></table><div></div></td></tr><tr><td class="navbox-abovebelow" colspan="3"><div><span class="noviewer" typeof="mw:File"><span title="Category"></span></span> <b>Category</b> • <span class="nowrap"><span class="skin-invert-image noviewer" typeof="mw:File"></span> </span><a href="Portal%3AComputer_programming" title="Portal:Computer programming">Computer programming portal</a></div></td></tr></tbody></table></div></div><div><div class="zim-footer">

This article is issued from <a class="external text" title="Last edited on 2025-05-25" href="https://en.wikipedia.org/wiki/?title=Java_Card&oldid=1292072507">Wikipedia</a>. The text is available under <a class="external text" href="https://creativecommons.org/licenses/by-sa/4.0/deed.en">Creative Commons Attribution-Share Alike 4.0</a> unless otherwise noted. Additional terms may apply for the media files.

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