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JAVA Technology

JAVA Technology. Java Technology. Java technology is a portfolio of products that are based on the power of networks and the idea that the same software should run on many different kinds of systems and devices “Write Once Run Anywhere”. Subjects of Java Technology. J2SE (Core/Desktop)

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JAVA Technology

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  1. JAVA Technology

  2. Java Technology • Java technology is a portfolio of products that are based on the power of networks and the idea that the same software should run on many different kinds of systems and devices • “Write Once Run Anywhere”

  3. Subjects of Java Technology • J2SE (Core/Desktop) • J2EE (Enterprise/Server) • J2ME (Mobile/Wireless) • Java Card • Java Web Services • XML • Other Java Technologies

  4. J2SE (Java 2 Standard Edition)Core Technology • The essentials: Objects, strings, threads, numbers, input and output, data structures, system properties, date and time, and so on. • Applets: The set of conventions used by applets. • Networking: URLs, TCP (Transmission Control Protocol), UDP (User Datagram Protocol) sockets, and IP (Internet Protocol) addresses. • Internationalization: Help for writing programs that can be localized for users worldwide. Programs can automatically adapt to specific locales and be displayed in the appropriate language. • Security: Both low level and high level, including electronic signatures, public and private key management, access control, and certificates. • Software components: Known as JavaBeansTM, can plug into existing component architectures. • Object serialization: Allows lightweight persistence and communication via Remote Method Invocation (RMI). • Java Database Connectivity (JDBC): Provides uniform access to a wide range of relational databases.

  5. What is included in the Java 2 SDK?

  6. J2EE (Java 2 Enterprise Edition) • Web Application (e-commerce, e-learning, e-business, e-government, etc) • JSP (Java server Pages) & Servlets • JDBC (Java Database Connectivity) • EJB (Enterprise JavaBeans) • JavaMail • JMS (Java Message service) • Application Example : • Online Application (Book Store, library, internet Banking, etc)

  7. J2EE Example

  8. J2ME – Java 2 Micro Edition • J2ME enables Java applications to run on small, resource-constrained computing devices (mobile phone, PDA). • Java technology for handheld and embedded devices. Compatibility with J2SE is maintained wherever feasible. • In fact, J2ME removes the parts of J2SE that are not applicable to constrained devices, such as AWT and other features. • J2ME defines configurations and profiles. • 2 Configuration • CLDC – Connected Limited Device Configuration, • Device with 160 – 512 KiloByte memory, Part of J2SE feature, prosesor 16 or 32 bit • CDC – Connected Device Configuration • Minimum memory 2 Mbyte, Full J2SE features, Prosesor 32 bit • Profile : MIDP, FP, Personal, RMI Profile, PDA Profile.

  9. J2ME Appication Example

  10. JAVA Card • Java Card technology provides a secure environment for applications that run on smart cards and other devices with very limited memory and processing capabilities. • Multiple applications on a single card, and new ones can be added to it even after it has been issued to the end user. • Applications written in the Java programming language can be executed securely on cards from different vendors • Many used with Java Security

  11. Others Java Technology • Jini Network Technology • JXTA Technology • OSS through Java Initiative • JSLEE and the JAIN Initiative • Java Dynamic Management Kit • Java Metadata Interface

  12. JINI Network Technology • Jini network technology, which includes JavaSpaces technology and Jini extensible remote invocation (Jini ERI), is an open architecture that enables you to create network-centric services--whether implemented in hardware or software--that are highly adaptive to change. You can use Jini technology to build adaptive networks that are scalable, evolvable, and flexible, as typically required in dynamic computing environments • Network Controller • Example : Monitoring temperatur via web

  13. JAIN & JSLEE • a set of Java technology APIs that enable the rapid development of Java based next generation communications products and services for the Java platform • Java for Telecommunication • JAIN Service Logic Execution Environment (JSLEE)

  14. JXTA • You can use JXTA technology to create peer-to-peer (P2P) applications based on Java technology. • JXTA technology is a set of open protocols that enable any connected device on the network, ranging from cell phones and wireless PDAs to PCs and servers, to communicate and collaborate in a P2P manner. • JXTA peers create a virtual network where any peer can interact with other peers and resources directly, even when some of the peers and resources are behind firewalls and network address translations (NATs) or on different network transports.

  15. OSS & Java • The OSS through Java Initiative ("OSS" stands for "Operations Support Systems") produces a standard set of Java technology-based APIs to jump-start the implementation of end-to-end services on next-generation wireless networks, and leverage the convergence of telecommunications and Internet-based solutions. • OSS/J (www.ossj.org) focusing on the business needs of Service Providers and the broader OSS/J community: ISVs, NEPs, and system implementation providers, as well as telecommunications analysts, consultants and associations. This site (java.sun.com/products/oss) will remain focused on meeting the needs of Java developers serving the telecommunications industry.

  16. Java DMK • Java Dynamic Management Kit (Java DMK) is a Java technology based toolkit that allows developers to rapidly create smart agents based on the Java Management Extensions (JMX) specification. T • he power of the JMX framework is that it supports multiple protocol access to management information residing in the agent. • The latest release of Java DMK, conforms to JMX v.1.2 and JMX Remote API 1.0. The JMX specification defines a three-level management architecture: • The instrumentation level makes resources manageable as Java objects • The agent level exposes these objects for management • The distributed services level allow remote access and security

  17. Why use Java DMK • Device vendors and application developers can use any technology they want: as long as management applications communicate through a Java dynamic management agent, they can access any resource • Management services deployed in agents can interchange resources dynamically, allowing new services to be downloaded and plugged into smart agents as and when they become available

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