The Java 2 Platform, Micro Edition (J2ME) is the Java platform for consumer and embedded devices like mobile phones and PDAs. It defines configurations, profiles, and optional packages to optimize memory usage and performance for different categories of devices. The two main configurations are the Connected Limited Device Configuration (CLDC) for small devices and the Connected Device Configuration (CDC) for devices with more resources. Profiles like MIDP and Personal Profile build on these to provide functionality for different device types. J2ME allows applications to be written once to run across a wide range of devices.
This document provides an overview of the Java 2 Platform, Micro Edition (J2ME). It discusses that J2ME was created to provide a Java environment for small, memory-constrained devices. It focuses on the core concepts of J2ME, including configurations like CLDC and CDC that define minimum requirements, profiles that add domain-specific classes, and optional packages that provide additional APIs. The document also provides examples of MIDP, the profile for mobile information devices, and how it defines classes to build interactive J2ME applications through the use of MIDlets.
Introduction to Mobile programming(J2ME)Wambua Wambua
J2ME is a Java platform for small computing devices like mobile phones and PDAs. It uses a stripped-down Java API and virtual machine called CLDC. The J2ME architecture has three layers - configuration, profile, and MIDP. The configuration defines the JVM, profiles provide features for device classes, and MIDP is the most popular profile for mobile information devices. MIDP applications are called MIDlets, which are packaged in JAR files along with optional JAD descriptor files.
The document provides an overview of J2ME (Java 2 Micro Edition). It discusses key topics such as:
- J2ME is used to develop applications for small computing devices like phones and PDAs.
- J2ME addresses the limited resources of these devices by using configurations like CLDC that use stripped-down versions of the JVM.
- It also uses profiles that define features for classes of devices. The main configurations are CLDC for small memory devices and CDC for devices with more resources.
Cloud computing provides on-demand access to computing resources like applications and storage over the Internet. It has various deployment models including public, private, hybrid and community clouds. The main service models are Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS). IaaS provides fundamental computing resources, PaaS supplies platforms for application development, and SaaS delivers software applications to users.
The document discusses the architecture and components of J2ME, including:
1) J2ME has three layers - the configuration layer which includes the JVM, profile layer providing Java APIs, and MIDP layer for user interface and storage.
2) MIDlets are Java applications that run on small devices and extend the MIDlet class. They have lifecycle methods like startApp(), pauseApp(), destroyApp().
3) The SDK includes packages like CLDC, MIDP, and the Wireless Toolkit for developing MIDlets. MIDlets are compiled into a JAR file and described in a JAD file.
The document provides an overview of mobile payment systems. It discusses different mobile payment schemes such as bank account based, credit card based, and micropayment schemes. It also outlines desirable properties of a mobile payment system including being easy to use, general purpose, interoperable, trustworthy, cost-effective, swift, and enabling global payments. Popular mobile payment solutions like SMS-based payments, POS-based payments, barcode payments, and NFC-based payments are also mentioned. Finally, the key steps in a typical mobile payment transaction process are summarized.
Mobile Device Operating Systems – Special Constrains & Requirements – Commercial Mobile Operating Systems – Software Development Kit: iOS, Android, BlackBerry, Windows Phone – M-Commerce – Structure – Pros & Cons – Mobile Payment System – Security Issues.
This document provides an overview of the Java 2 Platform, Micro Edition (J2ME). It discusses that J2ME was created to provide a Java environment for small, memory-constrained devices. It focuses on the core concepts of J2ME, including configurations like CLDC and CDC that define minimum requirements, profiles that add domain-specific classes, and optional packages that provide additional APIs. The document also provides examples of MIDP, the profile for mobile information devices, and how it defines classes to build interactive J2ME applications through the use of MIDlets.
Introduction to Mobile programming(J2ME)Wambua Wambua
J2ME is a Java platform for small computing devices like mobile phones and PDAs. It uses a stripped-down Java API and virtual machine called CLDC. The J2ME architecture has three layers - configuration, profile, and MIDP. The configuration defines the JVM, profiles provide features for device classes, and MIDP is the most popular profile for mobile information devices. MIDP applications are called MIDlets, which are packaged in JAR files along with optional JAD descriptor files.
The document provides an overview of J2ME (Java 2 Micro Edition). It discusses key topics such as:
- J2ME is used to develop applications for small computing devices like phones and PDAs.
- J2ME addresses the limited resources of these devices by using configurations like CLDC that use stripped-down versions of the JVM.
- It also uses profiles that define features for classes of devices. The main configurations are CLDC for small memory devices and CDC for devices with more resources.
Cloud computing provides on-demand access to computing resources like applications and storage over the Internet. It has various deployment models including public, private, hybrid and community clouds. The main service models are Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS). IaaS provides fundamental computing resources, PaaS supplies platforms for application development, and SaaS delivers software applications to users.
The document discusses the architecture and components of J2ME, including:
1) J2ME has three layers - the configuration layer which includes the JVM, profile layer providing Java APIs, and MIDP layer for user interface and storage.
2) MIDlets are Java applications that run on small devices and extend the MIDlet class. They have lifecycle methods like startApp(), pauseApp(), destroyApp().
3) The SDK includes packages like CLDC, MIDP, and the Wireless Toolkit for developing MIDlets. MIDlets are compiled into a JAR file and described in a JAD file.
The document provides an overview of mobile payment systems. It discusses different mobile payment schemes such as bank account based, credit card based, and micropayment schemes. It also outlines desirable properties of a mobile payment system including being easy to use, general purpose, interoperable, trustworthy, cost-effective, swift, and enabling global payments. Popular mobile payment solutions like SMS-based payments, POS-based payments, barcode payments, and NFC-based payments are also mentioned. Finally, the key steps in a typical mobile payment transaction process are summarized.
Mobile Device Operating Systems – Special Constrains & Requirements – Commercial Mobile Operating Systems – Software Development Kit: iOS, Android, BlackBerry, Windows Phone – M-Commerce – Structure – Pros & Cons – Mobile Payment System – Security Issues.
The document defines an operating system and system software. It describes the common functions of operating systems such as starting up and shutting down computers, providing a user interface, managing memory and programs. It summarizes several types of stand-alone, server, and embedded operating systems. It also describes several common utility programs that operate systems use to perform maintenance tasks like file management, backups, firewalls, and disk cleanup.
The document describes various types of storage media and storage devices, including internal hard disks, external hard disks, solid state drives, memory cards, USB flash drives, cloud storage, optical discs like CDs and DVDs, tape, smart cards, and microfilm. It provides details on the characteristics and uses of these different storage options. The document also discusses putting the various storage solutions together based on needs like for home users, mobile users, power users, and enterprise users.
The system unit contains the main components of a computer including the motherboard, processor, memory, and other electronic parts. The processor contains a control unit and arithmetic logic unit (ALU) and completes a four step machine cycle for each instruction. Common processors include multi-core and quad-core designs from Intel and AMD. Memory comes in volatile RAM and non-volatile ROM varieties and is measured in bytes for storage of operating systems, applications, and user data. Expansion slots on the motherboard allow additional components like video and sound cards to enhance the computer's capabilities.
ESS is a software development company that provides custom software solutions through an experienced team of over 200 programmers, architects, project managers, and other professionals. They deliver applications tailored to customers' needs at a competitive price.
IMfirst provides multiparty video, voice and data communication solutions for Microsoft Windows Messenger. It utilizes the familiar Messenger interface to enable users to easily set up conferences with one click. IMfirst integrates with RADVISION VCS for one-click scheduling of planned calls from Outlook calendars. It leverages RADVISION's viaIP MCU for true multimedia conferencing with advanced features. IMfirst allows multipoint collaboration capabilities between Windows Messenger clients and other devices.
This document discusses databases and how they are used to organize data. It defines key database concepts like data, records, fields and files. It explains how databases improve on traditional file processing systems by reducing redundancy and improving data sharing and integrity. Different types of database models are covered, including relational, object-oriented and multidimensional databases. The roles of database administrators and analysts are described in managing and designing database systems. Web databases that power online services are also summarized.
NexGenSoftware aims to be a technology company known for right solutions, sound engineering, excellent delivery and customer orientation. It is guided by principles of integrity, reliability, high quality solutions, sound engineering, and alignment with client objectives. The company is led by Sukhdev Singh and Pervinder Singh and offers outsourced software development, product engineering, application support and maintenance, and more using technologies like .NET, mobile and enterprise applications. NexGenSoftware follows processes like validation, testing and knowledge transfer to ensure successful project delivery and has experience delivering projects spanning desktop, client server and web/mobile.
Introduction to mobile programing (J2ME)Wambua Wambua
J2ME is a Java platform for small computing devices like mobile phones and PDAs. It uses a stripped-down Java API and virtual machine called CLDC. The J2ME architecture has three layers - configuration, profile, and MIDP. The most popular profile is MIDP, which defines APIs for mobile user interfaces. MIDP applications called MIDlets are deployed in JAR files, with optional metadata in JAD files.
ESKA® MMC is a robust and scalable multimedia messaging system that allows subscribers to send and receive messages containing various media types. It provides a web interface for users to manage messages and compose new ones. As a carrier-grade system, ESKA® MMC supports rich multimedia services for providers and is compliant with 3GPP standards to ensure interoperability. It also offers advanced features such as charging, notifications, and an interface for third party applications.
This document discusses various types of computer storage media and storage devices. It describes internal hard disks, external storage, solid state drives, optical discs, flash memory, tape storage, and cloud storage. The document provides details on the characteristics, uses, and care of different storage options and how they are suited for different types of computer users from home to enterprise levels.
Middleware technologies like RPC, RMI, CORBA, and web services define standards for distributed computing by allowing programs and objects located on different machines to communicate. They provide location transparency so clients can access remote objects as if they were local. Middleware sits above basic communication mechanisms and hides differences in operating systems, networks, and programming languages.
Client server computing in mobile environmentsPraveen Joshi
Client server computing in mobile environments. Versatile, Message based, Modular Infrastructure intended to improve usability, flexibility, interoperability and scalability as compared to Centralized, Mainframe, time sharing computing.
Intended to reduce Network Traffic.
Communication is using RPC or SQL
Accessible computer interface for a cnc machining centerJupira Silva
The document is a project report submitted to the Seattle Lighthouse for the Blind proposing an accessible computer interface for a CNC machining center. It provides background on the need for the project, outlines the scope of work including research conducted and alternatives considered. It then details the plan for implementing the project through designing the interface using Visual Basic, constructing a prototype, testing it with blind volunteers, and documenting the process.
This document discusses several topics related to multimedia authoring and user interfaces, including:
1. Types of authoring systems such as dedicated, timeline-based, structured, and programmable authoring systems.
2. Design issues for authoring systems like display resolution, data formats, compression algorithms, and storage.
3. Integration of applications and allowing data exchange between different programs through methods like clipboard and OLE.
The document is a resume for a Java/J2EE developer with over 15 years of experience designing and developing large enterprise applications using technologies like Java, J2EE, Spring, Hibernate, XML, and various middleware platforms. Some of the major projects listed include developing online banking applications, insurance systems, and portals. The resume highlights skills, achievements, and responsibilities on past projects to demonstrate a strong background in software architecture, design patterns, performance tuning, and leading development teams.
This document provides an overview of mobile database tools, including why mobile databases are needed, common database architectures, and features of mobile database tools. It reviews several specific mobile database tools (SQLAnywhere, SolidDB, SQL Server Compact, Oracle Database Lite, SQLite, DB4o, MongoDB), discussing their strengths, weaknesses, and technical details. The document concludes that as mobile device usage increases, mobile databases need to efficiently store and synchronize data across platforms using small memory footprints and secure connectivity.
Videoconferencing in heterogeneous environmentsVideoguy
This document describes an integrated videoconferencing system called Global Multimedia Collaboration System (Global-MMCS) that allows heterogeneous multimedia clients to participate in real-time sessions. Global-MMCS provides support for protocols like H.323, SIP, and Access Grid and includes components like a session server, gateways, and media server. The session server manages sessions using an XML-based protocol while the media server facilitates audio and video transfer between clients, implementing functions like mixing and transcoding. The system aims to integrate different conferencing communities in an easy-to-use way by translating between their various protocols.
The document discusses characteristics of mobile environments and computing architectures, including intermittent connectivity, location changes, and limited battery life. It also covers various approaches to managing data and processing queries and transactions in mobile databases, such as push and pull mechanisms, broadcasting, and transaction models that account for disconnections. Security, recovery from failures, and design considerations for mobile databases are additional topics covered in the document.
Mobile databases allow users to access data from mobile devices over mobile networks. A mobile database can be stored on the mobile device itself or on a stationary database connected to over a mobile network. Mobile databases must be able to work without a constant network connection due to poor connectivity. They use caching to store recently accessed data locally. Mobile databases provide accessibility to data anywhere and anytime. They use a distributed architecture with fixed hosts, base stations, and mobile units that can handoff control when moving between network cells. Mobile databases face challenges in managing data, transactions, security, and limitations of mobile devices and networks.
The document discusses a wilderness test and how to identify, react to, and pass through challenges in the wilderness. It poses questions about how to handle the test and navigate the wilderness successfully with only 3 brief sentences.
Navigating life's challenges and trials can be difficult, but having Christ within us provides hope. Our inner being, when connected to God through faith, gives us strength to overcome life's hardships and temptations. With Christ as our guide, we can face any obstacle or enticement that comes our way.
The document defines an operating system and system software. It describes the common functions of operating systems such as starting up and shutting down computers, providing a user interface, managing memory and programs. It summarizes several types of stand-alone, server, and embedded operating systems. It also describes several common utility programs that operate systems use to perform maintenance tasks like file management, backups, firewalls, and disk cleanup.
The document describes various types of storage media and storage devices, including internal hard disks, external hard disks, solid state drives, memory cards, USB flash drives, cloud storage, optical discs like CDs and DVDs, tape, smart cards, and microfilm. It provides details on the characteristics and uses of these different storage options. The document also discusses putting the various storage solutions together based on needs like for home users, mobile users, power users, and enterprise users.
The system unit contains the main components of a computer including the motherboard, processor, memory, and other electronic parts. The processor contains a control unit and arithmetic logic unit (ALU) and completes a four step machine cycle for each instruction. Common processors include multi-core and quad-core designs from Intel and AMD. Memory comes in volatile RAM and non-volatile ROM varieties and is measured in bytes for storage of operating systems, applications, and user data. Expansion slots on the motherboard allow additional components like video and sound cards to enhance the computer's capabilities.
ESS is a software development company that provides custom software solutions through an experienced team of over 200 programmers, architects, project managers, and other professionals. They deliver applications tailored to customers' needs at a competitive price.
IMfirst provides multiparty video, voice and data communication solutions for Microsoft Windows Messenger. It utilizes the familiar Messenger interface to enable users to easily set up conferences with one click. IMfirst integrates with RADVISION VCS for one-click scheduling of planned calls from Outlook calendars. It leverages RADVISION's viaIP MCU for true multimedia conferencing with advanced features. IMfirst allows multipoint collaboration capabilities between Windows Messenger clients and other devices.
This document discusses databases and how they are used to organize data. It defines key database concepts like data, records, fields and files. It explains how databases improve on traditional file processing systems by reducing redundancy and improving data sharing and integrity. Different types of database models are covered, including relational, object-oriented and multidimensional databases. The roles of database administrators and analysts are described in managing and designing database systems. Web databases that power online services are also summarized.
NexGenSoftware aims to be a technology company known for right solutions, sound engineering, excellent delivery and customer orientation. It is guided by principles of integrity, reliability, high quality solutions, sound engineering, and alignment with client objectives. The company is led by Sukhdev Singh and Pervinder Singh and offers outsourced software development, product engineering, application support and maintenance, and more using technologies like .NET, mobile and enterprise applications. NexGenSoftware follows processes like validation, testing and knowledge transfer to ensure successful project delivery and has experience delivering projects spanning desktop, client server and web/mobile.
Introduction to mobile programing (J2ME)Wambua Wambua
J2ME is a Java platform for small computing devices like mobile phones and PDAs. It uses a stripped-down Java API and virtual machine called CLDC. The J2ME architecture has three layers - configuration, profile, and MIDP. The most popular profile is MIDP, which defines APIs for mobile user interfaces. MIDP applications called MIDlets are deployed in JAR files, with optional metadata in JAD files.
ESKA® MMC is a robust and scalable multimedia messaging system that allows subscribers to send and receive messages containing various media types. It provides a web interface for users to manage messages and compose new ones. As a carrier-grade system, ESKA® MMC supports rich multimedia services for providers and is compliant with 3GPP standards to ensure interoperability. It also offers advanced features such as charging, notifications, and an interface for third party applications.
This document discusses various types of computer storage media and storage devices. It describes internal hard disks, external storage, solid state drives, optical discs, flash memory, tape storage, and cloud storage. The document provides details on the characteristics, uses, and care of different storage options and how they are suited for different types of computer users from home to enterprise levels.
Middleware technologies like RPC, RMI, CORBA, and web services define standards for distributed computing by allowing programs and objects located on different machines to communicate. They provide location transparency so clients can access remote objects as if they were local. Middleware sits above basic communication mechanisms and hides differences in operating systems, networks, and programming languages.
Client server computing in mobile environmentsPraveen Joshi
Client server computing in mobile environments. Versatile, Message based, Modular Infrastructure intended to improve usability, flexibility, interoperability and scalability as compared to Centralized, Mainframe, time sharing computing.
Intended to reduce Network Traffic.
Communication is using RPC or SQL
Accessible computer interface for a cnc machining centerJupira Silva
The document is a project report submitted to the Seattle Lighthouse for the Blind proposing an accessible computer interface for a CNC machining center. It provides background on the need for the project, outlines the scope of work including research conducted and alternatives considered. It then details the plan for implementing the project through designing the interface using Visual Basic, constructing a prototype, testing it with blind volunteers, and documenting the process.
This document discusses several topics related to multimedia authoring and user interfaces, including:
1. Types of authoring systems such as dedicated, timeline-based, structured, and programmable authoring systems.
2. Design issues for authoring systems like display resolution, data formats, compression algorithms, and storage.
3. Integration of applications and allowing data exchange between different programs through methods like clipboard and OLE.
The document is a resume for a Java/J2EE developer with over 15 years of experience designing and developing large enterprise applications using technologies like Java, J2EE, Spring, Hibernate, XML, and various middleware platforms. Some of the major projects listed include developing online banking applications, insurance systems, and portals. The resume highlights skills, achievements, and responsibilities on past projects to demonstrate a strong background in software architecture, design patterns, performance tuning, and leading development teams.
This document provides an overview of mobile database tools, including why mobile databases are needed, common database architectures, and features of mobile database tools. It reviews several specific mobile database tools (SQLAnywhere, SolidDB, SQL Server Compact, Oracle Database Lite, SQLite, DB4o, MongoDB), discussing their strengths, weaknesses, and technical details. The document concludes that as mobile device usage increases, mobile databases need to efficiently store and synchronize data across platforms using small memory footprints and secure connectivity.
Videoconferencing in heterogeneous environmentsVideoguy
This document describes an integrated videoconferencing system called Global Multimedia Collaboration System (Global-MMCS) that allows heterogeneous multimedia clients to participate in real-time sessions. Global-MMCS provides support for protocols like H.323, SIP, and Access Grid and includes components like a session server, gateways, and media server. The session server manages sessions using an XML-based protocol while the media server facilitates audio and video transfer between clients, implementing functions like mixing and transcoding. The system aims to integrate different conferencing communities in an easy-to-use way by translating between their various protocols.
The document discusses characteristics of mobile environments and computing architectures, including intermittent connectivity, location changes, and limited battery life. It also covers various approaches to managing data and processing queries and transactions in mobile databases, such as push and pull mechanisms, broadcasting, and transaction models that account for disconnections. Security, recovery from failures, and design considerations for mobile databases are additional topics covered in the document.
Mobile databases allow users to access data from mobile devices over mobile networks. A mobile database can be stored on the mobile device itself or on a stationary database connected to over a mobile network. Mobile databases must be able to work without a constant network connection due to poor connectivity. They use caching to store recently accessed data locally. Mobile databases provide accessibility to data anywhere and anytime. They use a distributed architecture with fixed hosts, base stations, and mobile units that can handoff control when moving between network cells. Mobile databases face challenges in managing data, transactions, security, and limitations of mobile devices and networks.
The document discusses a wilderness test and how to identify, react to, and pass through challenges in the wilderness. It poses questions about how to handle the test and navigate the wilderness successfully with only 3 brief sentences.
Navigating life's challenges and trials can be difficult, but having Christ within us provides hope. Our inner being, when connected to God through faith, gives us strength to overcome life's hardships and temptations. With Christ as our guide, we can face any obstacle or enticement that comes our way.
This document discusses the challenges people face daily in making important decisions that affect themselves and others. It notes that people often choose to stay in their current circumstances, which they view as safer, rather than moving through gates that seem unknown. Moving through unknown gates represents change and potential improvement over one's current situation.
Life presents daily tests and temptations that can be faced, endured and overcome. Dealing with challenges is part of everyday life. With perseverance and resilience, one can withstand difficulties and come out stronger on the other side.
This short poem explores an individual's inner conflict around whether their actions align with their heart. In just a few words, the poem prompts self-reflection on the relationship between one's words, deeds, and true intentions or feelings.
- J2ME is a Java platform for embedded and mobile devices like phones, PDAs, etc.
- It has three main configurations: CLDC for low-end devices, CDC for more powerful devices, and Java SE for desktops.
- Profiles add functionality and APIs to configurations for specific device types. The main profile is MIDP for mobile phones.
- Optional packages provide additional common APIs like Bluetooth, messaging, location services, etc.
- J2ME is widely used in low-cost mobile devices but has declined on newer smartphones that use Android or iOS.
The document provides an overview of Java 2 Platform, Micro Edition (J2ME):
J2ME is a Java platform for resource-constrained devices. It defines configurations like CLDC for very limited devices and CDC for more capable devices, as well as profiles like MIDP that add functionality. MIDP targets mobile information devices and defines APIs for user interfaces, storage, and networking. Developing for J2ME requires choosing a configuration and profile, then building a MIDlet application within their constraints.
This document discusses Java for small devices known as Java Micro Edition (J2ME). J2ME is classified into configurations, which are designed for specific device types based on memory and processing power, and profiles, which provide additional APIs for developing applications for similar device families. The Mobile Information Device Profile (MIDP) caters for devices with at least 256KB of ROM and RAM each, a screen of at least 96x54 pixels, and some input capability. MIDP provides portability by allowing applications to run on any compatible device, and security through bytecode verification and restricted class loading.
J2ME (Java Platform, Micro Edition) provides a Java platform for resource-constrained devices like cell phones and PDAs. It includes configurations like CLDC (Connected Limited Device Configuration) and CDC (Connected Device Configuration) that define the Java features and APIs supported. Profiles like MIDP (Mobile Information Device Profile) build on these configurations to provide functionality for specific device types. Optional packages can additionally extend the features available to applications.
J2ME is a Java platform designed for embedded systems like mobile devices. It includes configurations like CLDC for limited devices and CDC for more full-featured devices. Popular profiles include MIDP for mobile phones and PDAs. MIDP applications consist of a JAR file containing classes and resources and a JAD descriptor file. The document provides an overview of J2ME configurations, profiles, and the basics of developing MIDP applications.
J2ME defines a Java platform for resource-constrained mobile devices. It consists of configurations that define the runtime environment and profiles that add functionality on top of configurations. The Connected Limited Device Configuration (CLDC) and Mobile Information Device Profile (MIDP) are commonly used. MIDP applications are composed of MIDlets, which extend the MIDlet class and implement its lifecycle methods. MIDlets are packaged and deployed using JAR and JAD files. Optional packages provide additional APIs to extend device capabilities.
The document discusses several mobile operating system platforms including Java ME, Symbian OS, Windows Mobile, iPhone OS, and Google Android. It describes the structure and features of each platform, highlighting their differences from desktop operating systems due to mobile devices' limited resources. Key aspects covered include multitasking, memory management, security features, and each platform's software stack and architecture.
If you want the full transcipt then send me email: solidus.asadov@gmail.com
In 90s we needed an environment which is adapted for
constrained devices – devices that had limitations on what they
can do when compared to standard desktop or server
computers. The constrained devices had such limitations as
extremely limited memory, small screen sizes, alternative input
methods, slow processors etc. In 1999 Sun Microsystems
Company has decided to develop a special edition of Java
called Java 2 Micro Edition.
This document outlines an agenda for a J2ME mobile app development workshop. It includes sections on programming for mobile devices, Java and mobile app development, the J2ME architecture, how to write code and scope, test, and deploy J2ME apps. It also discusses tools, best practices, and includes a networking demo. The goal is to educate attendees on developing apps for mobile Java platforms like J2ME.
The document discusses Java ME (J2ME), a Java platform designed for small, resource-constrained devices. It covers the key concepts of J2ME including configurations, profiles, and optional packages which determine available APIs and how applications are packaged. The document specifically describes CLDC configuration and MIDP profile, the most common combination used. It provides examples of popular J2ME applications and discusses pros and cons of the platform.
Senthilnathan Dhamodharan is a senior software professional with 13 years of experience in application development, embedded systems, network management, and board support packages. He has expertise in areas such as FCAPS-based network management systems, kernel module programming, device driver development, software development processes, and project management. He is skilled in languages like C, C++, Java, and Python and has worked on projects for companies in defense, aerospace, telecommunications and other industries.
The document provides an overview of mobile technology and software development for mobile devices. It discusses Java 2 Micro Edition (J2ME) architecture including the Kilo Virtual Machine (KVM), configurations like Connected Limited Device Configuration (CLDC) and Connected Device Configuration (CDC), and profiles like Mobile Information Device Profile (MIDP). It also covers setting up a J2ME development environment.
The document provides an overview of the history and components of Java ME (Micro Edition). It discusses how Java ME was created as a smaller version of Java for small devices. Java ME is divided into configurations (CLDC, CDC) and profiles (MIDP) that define the runtime environment for different types of devices. MIDP is the main profile used for mobile phones and defines aspects like the user interface, lifecycle, and APIs. A MIDlet is a Java ME application that runs under the control of the Application Management System (AMS) on devices.
The document provides an overview of J2ME (Java 2 Micro Edition), which is a version of Java designed for small, resource-constrained devices. It discusses what J2ME is, the motivations for its creation, its core concepts including configurations, profiles, and optional packages, and how to get started developing applications using J2ME. The document serves as an introduction to the J2ME platform for developing applications on devices such as mobile phones, PDAs, and other small computing devices.
DDGen is a software tool that automatically generates device driver code from formal specifications of the device and runtime environment. It captures details during IC design and software development to generate ANSI C code for a variety of operating systems and device classes. This helps semiconductor companies develop drivers early and reduces driver development time and costs for embedded systems. Vayavya Labs provides the DDGen tool with flexible licensing options.
The document summarizes key information about Android:
1) Android is an open-source software platform based on Linux for mobile devices. It uses Java for application development and includes features for hardware integration, security, and networking.
2) The Android software stack includes layers for hardware integration, core libraries, a virtual machine, application framework, and applications. It supports various hardware configurations and network connectivity standards.
3) Android applications are sandboxed for security and permissions are required for sensitive capabilities. Performance is optimized through techniques like avoiding unnecessary object instantiation and using native code where possible.
J2ME was created to allow Java applications to run on mobile and small computing devices with limited hardware capabilities. It consists of configurations like CLDC and profiles like MIDP that allow Java applications to run on devices with as little as 160KB of memory. J2ME applications are modified versions of desktop Java applications since mobile devices have fewer resources. Wireless networks use radio transmissions over cellular networks to connect mobile devices. Digital cellular networks now allow both voice and data to be transmitted using techniques like CDMA and TDMA. This enables the development of mobile applications running on Java platforms like J2ME.
The project Remote Web Desk deals with remote control of computer over some form of network usually a LAN or the Internet. It allows friend or an administrator to fix problem on your computer or you can use it to show your desk top to somebody at a remote location
The document discusses the Blackberry development environment including:
1. The Blackberry Java Development Environment (JDE) provides APIs and tools for developing Java applications for Blackberry devices based on J2ME and includes a runtime environment.
2. The Application Manager manages all Java applications, directs events to the appropriate applications, and applications extend the UiApplication class to register listeners and manage threads and UI components.
3. Applications can implement listener interfaces like KeyListener and TrackwheelListener to receive keyboard and trackwheel events on the event queue and access the UI from background threads using invokeLater().
J2ME is a Java platform for mobile and embedded devices. It includes configurations like CLDC for small devices and profiles like MIDP for mobile information devices. J2ME provides advantages like cross-platform development, robustness through virtual machines, security features, and connectivity to Java enterprise applications. It allows developing applications for a wide range of devices from set-top boxes to phones using a single Java codebase.
The Department of Veteran Affairs (VA) invited Taylor Paschal, Knowledge & Information Management Consultant at Enterprise Knowledge, to speak at a Knowledge Management Lunch and Learn hosted on June 12, 2024. All Office of Administration staff were invited to attend and received professional development credit for participating in the voluntary event.
The objectives of the Lunch and Learn presentation were to:
- Review what KM ‘is’ and ‘isn’t’
- Understand the value of KM and the benefits of engaging
- Define and reflect on your “what’s in it for me?”
- Share actionable ways you can participate in Knowledge - - Capture & Transfer
inQuba Webinar Mastering Customer Journey Management with Dr Graham HillLizaNolte
HERE IS YOUR WEBINAR CONTENT! 'Mastering Customer Journey Management with Dr. Graham Hill'. We hope you find the webinar recording both insightful and enjoyable.
In this webinar, we explored essential aspects of Customer Journey Management and personalization. Here’s a summary of the key insights and topics discussed:
Key Takeaways:
Understanding the Customer Journey: Dr. Hill emphasized the importance of mapping and understanding the complete customer journey to identify touchpoints and opportunities for improvement.
Personalization Strategies: We discussed how to leverage data and insights to create personalized experiences that resonate with customers.
Technology Integration: Insights were shared on how inQuba’s advanced technology can streamline customer interactions and drive operational efficiency.
LF Energy Webinar: Carbon Data Specifications: Mechanisms to Improve Data Acc...DanBrown980551
This LF Energy webinar took place June 20, 2024. It featured:
-Alex Thornton, LF Energy
-Hallie Cramer, Google
-Daniel Roesler, UtilityAPI
-Henry Richardson, WattTime
In response to the urgency and scale required to effectively address climate change, open source solutions offer significant potential for driving innovation and progress. Currently, there is a growing demand for standardization and interoperability in energy data and modeling. Open source standards and specifications within the energy sector can also alleviate challenges associated with data fragmentation, transparency, and accessibility. At the same time, it is crucial to consider privacy and security concerns throughout the development of open source platforms.
This webinar will delve into the motivations behind establishing LF Energy’s Carbon Data Specification Consortium. It will provide an overview of the draft specifications and the ongoing progress made by the respective working groups.
Three primary specifications will be discussed:
-Discovery and client registration, emphasizing transparent processes and secure and private access
-Customer data, centering around customer tariffs, bills, energy usage, and full consumption disclosure
-Power systems data, focusing on grid data, inclusive of transmission and distribution networks, generation, intergrid power flows, and market settlement data
In our second session, we shall learn all about the main features and fundamentals of UiPath Studio that enable us to use the building blocks for any automation project.
📕 Detailed agenda:
Variables and Datatypes
Workflow Layouts
Arguments
Control Flows and Loops
Conditional Statements
💻 Extra training through UiPath Academy:
Variables, Constants, and Arguments in Studio
Control Flow in Studio
ScyllaDB is making a major architecture shift. We’re moving from vNode replication to tablets – fragments of tables that are distributed independently, enabling dynamic data distribution and extreme elasticity. In this keynote, ScyllaDB co-founder and CTO Avi Kivity explains the reason for this shift, provides a look at the implementation and roadmap, and shares how this shift benefits ScyllaDB users.
Discover top-tier mobile app development services, offering innovative solutions for iOS and Android. Enhance your business with custom, user-friendly mobile applications.
Main news related to the CCS TSI 2023 (2023/1695)Jakub Marek
An English 🇬🇧 translation of a presentation to the speech I gave about the main changes brought by CCS TSI 2023 at the biggest Czech conference on Communications and signalling systems on Railways, which was held in Clarion Hotel Olomouc from 7th to 9th November 2023 (konferenceszt.cz). Attended by around 500 participants and 200 on-line followers.
The original Czech 🇨🇿 version of the presentation can be found here: https://www.slideshare.net/slideshow/hlavni-novinky-souvisejici-s-ccs-tsi-2023-2023-1695/269688092 .
The videorecording (in Czech) from the presentation is available here: https://youtu.be/WzjJWm4IyPk?si=SImb06tuXGb30BEH .
This talk will cover ScyllaDB Architecture from the cluster-level view and zoom in on data distribution and internal node architecture. In the process, we will learn the secret sauce used to get ScyllaDB's high availability and superior performance. We will also touch on the upcoming changes to ScyllaDB architecture, moving to strongly consistent metadata and tablets.
How to Interpret Trends in the Kalyan Rajdhani Mix Chart.pdfChart Kalyan
A Mix Chart displays historical data of numbers in a graphical or tabular form. The Kalyan Rajdhani Mix Chart specifically shows the results of a sequence of numbers over different periods.
AppSec PNW: Android and iOS Application Security with MobSFAjin Abraham
Mobile Security Framework - MobSF is a free and open source automated mobile application security testing environment designed to help security engineers, researchers, developers, and penetration testers to identify security vulnerabilities, malicious behaviours and privacy concerns in mobile applications using static and dynamic analysis. It supports all the popular mobile application binaries and source code formats built for Android and iOS devices. In addition to automated security assessment, it also offers an interactive testing environment to build and execute scenario based test/fuzz cases against the application.
This talk covers:
Using MobSF for static analysis of mobile applications.
Interactive dynamic security assessment of Android and iOS applications.
Solving Mobile app CTF challenges.
Reverse engineering and runtime analysis of Mobile malware.
How to shift left and integrate MobSF/mobsfscan SAST and DAST in your build pipeline.
Freshworks Rethinks NoSQL for Rapid Scaling & Cost-EfficiencyScyllaDB
Freshworks creates AI-boosted business software that helps employees work more efficiently and effectively. Managing data across multiple RDBMS and NoSQL databases was already a challenge at their current scale. To prepare for 10X growth, they knew it was time to rethink their database strategy. Learn how they architected a solution that would simplify scaling while keeping costs under control.
What is an RPA CoE? Session 2 – CoE RolesDianaGray10
In this session, we will review the players involved in the CoE and how each role impacts opportunities.
Topics covered:
• What roles are essential?
• What place in the automation journey does each role play?
Speaker:
Chris Bolin, Senior Intelligent Automation Architect Anika Systems
Must Know Postgres Extension for DBA and Developer during MigrationMydbops
Mydbops Opensource Database Meetup 16
Topic: Must-Know PostgreSQL Extensions for Developers and DBAs During Migration
Speaker: Deepak Mahto, Founder of DataCloudGaze Consulting
Date & Time: 8th June | 10 AM - 1 PM IST
Venue: Bangalore International Centre, Bangalore
Abstract: Discover how PostgreSQL extensions can be your secret weapon! This talk explores how key extensions enhance database capabilities and streamline the migration process for users moving from other relational databases like Oracle.
Key Takeaways:
* Learn about crucial extensions like oracle_fdw, pgtt, and pg_audit that ease migration complexities.
* Gain valuable strategies for implementing these extensions in PostgreSQL to achieve license freedom.
* Discover how these key extensions can empower both developers and DBAs during the migration process.
* Don't miss this chance to gain practical knowledge from an industry expert and stay updated on the latest open-source database trends.
Mydbops Managed Services specializes in taking the pain out of database management while optimizing performance. Since 2015, we have been providing top-notch support and assistance for the top three open-source databases: MySQL, MongoDB, and PostgreSQL.
Our team offers a wide range of services, including assistance, support, consulting, 24/7 operations, and expertise in all relevant technologies. We help organizations improve their database's performance, scalability, efficiency, and availability.
Contact us: info@mydbops.com
Visit: https://www.mydbops.com/
Follow us on LinkedIn: https://in.linkedin.com/company/mydbops
For more details and updates, please follow up the below links.
Meetup Page : https://www.meetup.com/mydbops-databa...
Twitter: https://twitter.com/mydbopsofficial
Blogs: https://www.mydbops.com/blog/
Facebook(Meta): https://www.facebook.com/mydbops/
How information systems are built or acquired puts information, which is what they should be about, in a secondary place. Our language adapted accordingly, and we no longer talk about information systems but applications. Applications evolved in a way to break data into diverse fragments, tightly coupled with applications and expensive to integrate. The result is technical debt, which is re-paid by taking even bigger "loans", resulting in an ever-increasing technical debt. Software engineering and procurement practices work in sync with market forces to maintain this trend. This talk demonstrates how natural this situation is. The question is: can something be done to reverse the trend?
zkStudyClub - LatticeFold: A Lattice-based Folding Scheme and its Application...Alex Pruden
Folding is a recent technique for building efficient recursive SNARKs. Several elegant folding protocols have been proposed, such as Nova, Supernova, Hypernova, Protostar, and others. However, all of them rely on an additively homomorphic commitment scheme based on discrete log, and are therefore not post-quantum secure. In this work we present LatticeFold, the first lattice-based folding protocol based on the Module SIS problem. This folding protocol naturally leads to an efficient recursive lattice-based SNARK and an efficient PCD scheme. LatticeFold supports folding low-degree relations, such as R1CS, as well as high-degree relations, such as CCS. The key challenge is to construct a secure folding protocol that works with the Ajtai commitment scheme. The difficulty, is ensuring that extracted witnesses are low norm through many rounds of folding. We present a novel technique using the sumcheck protocol to ensure that extracted witnesses are always low norm no matter how many rounds of folding are used. Our evaluation of the final proof system suggests that it is as performant as Hypernova, while providing post-quantum security.
Paper Link: https://eprint.iacr.org/2024/257
Dandelion Hashtable: beyond billion requests per second on a commodity serverAntonios Katsarakis
This slide deck presents DLHT, a concurrent in-memory hashtable. Despite efforts to optimize hashtables, that go as far as sacrificing core functionality, state-of-the-art designs still incur multiple memory accesses per request and block request processing in three cases. First, most hashtables block while waiting for data to be retrieved from memory. Second, open-addressing designs, which represent the current state-of-the-art, either cannot free index slots on deletes or must block all requests to do so. Third, index resizes block every request until all objects are copied to the new index. Defying folklore wisdom, DLHT forgoes open-addressing and adopts a fully-featured and memory-aware closed-addressing design based on bounded cache-line-chaining. This design offers lock-free index operations and deletes that free slots instantly, (2) completes most requests with a single memory access, (3) utilizes software prefetching to hide memory latencies, and (4) employs a novel non-blocking and parallel resizing. In a commodity server and a memory-resident workload, DLHT surpasses 1.6B requests per second and provides 3.5x (12x) the throughput of the state-of-the-art closed-addressing (open-addressing) resizable hashtable on Gets (Deletes).
QA or the Highway - Component Testing: Bridging the gap between frontend appl...zjhamm304
These are the slides for the presentation, "Component Testing: Bridging the gap between frontend applications" that was presented at QA or the Highway 2024 in Columbus, OH by Zachary Hamm.
What is an RPA CoE? Session 1 – CoE VisionDianaGray10
In the first session, we will review the organization's vision and how this has an impact on the COE Structure.
Topics covered:
• The role of a steering committee
• How do the organization’s priorities determine CoE Structure?
Speaker:
Chris Bolin, Senior Intelligent Automation Architect Anika Systems
1. Datasheet Java™ 2 Platform, Micro Edition On the Web sun.com/software
Java™ 2 Platform,
Micro Edition
The Java™ platform for consumer and
embedded devices.
The Java TM 2 Platform, Micro Edition (J2ME TM) The J2ME Architecture Configurations
is the Java platform for consumer and embed- The J2ME architecture defines configurations, Configurations are composed of a virtual mach-
ded devices such as mobile phones, PDAs, profiles and optional packages as elements for ine and a minimal set of class libraries. They
TV set-top boxes, in-vehicle telematics systems, building complete Java runtime environments provide the base functionality for a particular
and a broad range of embedded devices. that meet the requirements for a broad range of range of devices that share similar characteris-
Like its enterprise (J2EE TM), desktop (J2SE TM) devices and target markets. Each combination tics, such as network connectivity and memory
TM
and smart card (Java Card ) counterparts, is optimized for the memory, processing power, footprint. Currently, there are two J2ME config-
the J2ME platform is a set of standard Java and I/O capabilities of a related category of urations: the Connected Limited Device Con-
APIs defined through the Java Community devices. The result is a common Java platform figuration (CLDC), and the Connected Device
SM
Process program by expert groups that that fully leverages each type of device to deliver Configuration (CDC).
include leading device manufacturers, soft- a rich user experience.
ware vendors and service providers.
The J2ME platform delivers the power and
benefits of Java technology tailored for
consumer and embedded devices — includ-
ing a flexible user interface, robust security
model, broad range of built-in network
protocols, and support for networked and
disconnected applications. With J2ME,
applications are written once for a wide
range of devices, are downloaded dynami-
cally, and leverage each device's native
capabilities.
The J2ME platform is deployed on millions
of devices — from mobile phones, to PDAs,
to automotive devices — supported by lead-
ing Java technology tools vendors, and used
by companies worldwide. In short, it is the
platform of choice for today's consumer
and embedded devices.