Java is a versatile, object-oriented programming language that is widely used for software development across various industries. Java Developers can help clients create anything from complex web applications to automated trading bots and mobile apps. With their advanced skills and knowledge, they can turn your vision into reality, providing you with tailored solutions that align with your business goals. Here are some recent projects that our expert Java Developers made real:

  • Developing custom GUIs for existing codebases
  • Creating encrypted, secure crypto apps
  • Designing cross-platform audio merging tools for mobile devices
  • Building sophisticated trading bots for the cryptocurrency market
  • Implementing open-source virtual machines in C
  • Collaborating as senior developers on large-scale Android projects
  • Solving server request errors for mobile applications
  • Running and optimizing code from Git repositories
  • Designing and implementing web services for seamless integration

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    282 trabajados encontrados, precios en USD

    YA EXISTE UNA VERSIÓN DE ESTA APP, SOLO SERÍA RESOLVER UN PROBLEMA ACERCA DEL DESPLAZAMIENTO USANDO EL MANDO DE XBOX ONE. CONTEXTO: La app consiste en un recorrido virtual de un museo, para esto se deben usar gafas de realidad virtual (por ejemplo Google Cardboard) y un mando (preferentemente de Xbox One). PROBLEMA A RESOLVER: El problema que se debe resolver es acerca del desplazamiento con el Joystick del mando, actualmente si yo giro a la derecha y muevo el joystick hacia adelante NO me muevo hacia donde estoy mirando (como lo haría normalmente un juego), en su lugar me muevo hacia adelante del mapa. Otro ejemplo, si yo giro 180° (media vuelta) y muevo el joystick hacia adelante NO me muevo hacia atrás que es donde estoy viendo, en su lugar me muevo hac...

    $20 (Avg Bid)
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    Solamente hay que programar una puerta, a partir de unas texturas que serán proporcionadas, la puerta tiene que tener el mismo funcionamiento que una del porpio minecraft.

    $32 (Avg Bid)
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    Agenda-Contactos 6 días left
    VERIFICADO

    Tengo dos entidades GrupoContactos y Contactos, quiero poder almacenar contactos en grupos, completamente es un CRUD solo hay que usar ventanas abstractas y el patron MVC ya es codigo hecho solo es corregir y llevar a cabo

    $23 (Avg Bid)
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    3 ofertas

    Aplicacion para determinar el estado actual de un cubo de Rubick y replicarlo en OpenGL (NO RESOLVER EL CUBO) - Asumir el CUbo Clasico cuya configuración es 3x3. Desarrollado en android Studio y tomando como ejemplo el siguiente vinculo:

    $155 (Avg Bid)
    $155 Oferta promedio
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    Necesito desarrollar una aplicación donde se le coloque un filtro de una botarga cuando detecte a este mismo en la camara frontal de la aplicación, esto mediante MediaPIPE, ya contamos con el modelo de la botarga y se detecta la persona en la aplicación, solo falta implementarlo. Categoría: Programación y Tecnología Subcategoría: Programación de Apps. Android, iOS y otros ¿Cuál es el alcance del proyecto?: Cambio mediano ¿Es un proyecto o una posición?: Un proyecto Actualmente tengo: Tengo las especificaciones Disponibilidad requerida: Según se necesite Plataformas requeridas: Android Necesito: Modificar una app existente Tipo de app: Utilidad - Aplicación de utilidad (flash, calculadora, etc...

    $93 (Avg Bid)
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    El proyecto consiste en una aplicación móvil generada con Android Studio que pueda mostrar las redes de bravais retrabajando un proyecto anterior que será proporcionado. La aplicación debe permitir elegir uno de dos modos: modo quizz y modo creativo. El modo creativo es que la aplicación pueda mostrar en una parte de la pantalla los controles para modificar los valores de los lados a, b, c y los ángulos α , β y γ. Al momento que estos valores cambien se debe cambiar el dibujo mostrado de la red y mostrar el nombre de la red, dependiendo de cuál de las 14 posibles sea la que corresponda. Además en alguna parte debe dar una explicación al usuario de porque es esa red la que se forma con esos valores. Todo esto d...

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    Lo importante es utilizar Java para el programa y de base de datos puede ser cualquiera con el IDE de Netbeans 13

    $67 (Avg Bid)
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    Desarrollo de plugin para Atlassian Jira cloud, el plugin tendria funciones medio a basicas, se requiere conectividad con servicios de terceros por medio de sus API. Conocimientos y proyectos previos seria ideal, una vez desarrollado, se requerira mantener el desarrollo (Opcional).

    $2025 (Avg Bid)
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    El proyecto consiste en una aplicación móvil generada con Android Studio que pueda mostrar las redes de bravais retrabajando un proyecto anterior que será proporcionado. La aplicación debe permitir elegir uno de dos modos: modo quizz y modo creativo. El modo creativo es que la aplicación pueda mostrar en una parte de la pantalla los controles para modificar los valores de los lados a, b, c y los ángulos α , β y γ. Al momento que estos valores cambien se debe cambiar el dibujo mostrado de la red y mostrar el nombre de la red, dependiendo de cuál de las 14 posibles sea la que corresponda. Además en alguna parte debe dar una explicación al usuario de porque es esa red la que se forma con esos valores. Todo esto d...

    $23 (Avg Bid)
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    6 ofertas

    El proyecto consiste en una aplicación móvil generada con Android Studio que pueda mostrar las redes de bravais retrabajando un proyecto anterior que será proporcionado. La aplicación debe permitir elegir uno de dos modos: modo quizz y modo creativo. El modo creativo es que la aplicación pueda mostrar en una parte de la pantalla los controles para modificar los valores de los lados a, b, c y los ángulos α , β y γ. Al momento que estos valores cambien se debe cambiar el dibujo mostrado de la red y mostrar el nombre de la red, dependiendo de cuál de las 14 posibles sea la que corresponda. Además en alguna parte debe dar una explicación al usuario de porque es esa red la que se forma con esos valores. Todo esto d...

    $212 (Avg Bid)
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    Estoy buscando un desarrollador de servidores con experiencia en customización. El proyecto es crear un servidor de minecraft survival con temática medieval fantástica con nuevos objetos, mods, misiones, rangos texture pack personalizado... ya cuento con muchos plugins y algunas texturas pero necesito alguien que se encargue de configurar todo y unificarlo para crearlo

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    The project involves developing a mobile application using Android Studio that can display Bravais lattices by reworking a previous project, which will be provided. The application should allow choosing between two modes: quiz mode and creative mode. In creative mode, the application should display controls on a part of the screen to modify the values of sides a, b, c, and angles α, β, and γ. When these values change, the displayed lattice drawing should also change, showing the name of the lattice corresponding to one of the 14 possible options. Additionally, there should be an explanation to the user of why that lattice is formed with those specific values. All of this should be within the same window. In quiz mode, the application presents 10 questions. Each question in...

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    Quiero una aplicación de android que sea capaz de reconocer texto de una placa de identiicación vehicular y buscar esa placa en una base de datos donde estarán ingresadas una cantidad infinitas de placas vehiculares que hayan sido reportadas como vehículo robado. El usuario de la aplicación podrá posicionar su teléfono móvil con la cámara apuntando a las placas vehiculares de los automóviles que los anteceden y automáticamente la aplicación hará un encuadre de imagen a la placa de identificación que es de color blanca con letras negras con formato de 6 DÍGITOS ejemplo AL 2020 , BPCD 23. La aplicación detectará esta placa y comparará el texto reconocido con las pla...

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    El proyecto consiste en realizar una aplicación en Android Studio utilizando la api de Google Maps que muestre el mapa del estado de Tamaulipas, México y que divida al estado en zonas, donde cada zona en caso de darle click, deberá mostrar un cuadro de dialogo que muestre una lista de las especies de cactus que existen en esta zona. Además, si el usuario selecciona una especie de cactus, entonces deberá mostrar otro cuadro de dialogo que muestre información de la especie. Este mapa debe estar cuadriculado, por lo que cada cuadro de la cuadricula será una zona del estado. Se adjunta un articulo en el cual se puede obtener cuales son las especies de cactus que existen en el estado. La información de cada especie es recomendable que s...

    $51 (Avg Bid)
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    Creación de aplicativo que reciba una información de una api y siguiendo un parámetro de ubicación reenvíe esta información a la api correspondiente a cada una de las ubicaciones, esta información debe quedar tambien en un excel por ubicación, esta aplicación debe ser creada con Java Script y si es posible un front básico para la gestión de ubicaciones en el excel

    $188 (Avg Bid)
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    Android Cloud Messaging App 6 días left
    VERIFICADO

    Android app needed with the following: Technologies: * Firebase Cloud Messaging, Firebase sso login * UI - jetpack compose (kotlin), * Notifications Similar interface to google voice. Pages: * Init Login page with google login link 1. Messages with compose 2. Calls with dialer 3. Contacts with add new contact link 4. Voicemail Page

    $175 (Avg Bid)
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    I am looking for a JAVA developer with experience in Google Cloud Platform (GCP) to join my team. The specific tasks that I need the developer to perform include developing new applications. I am looking for someone with an intermediate level of experience in GCP. I do have a specific deadline for this project, so time management and meeting deadlines are important. Ideal Skills and Experience: - Strong proficiency in JAVA development - Experience with Google Cloud Platform (GCP) - Knowledge of cloud computing and architecture - Familiarity with GCP services such as App Engine, Cloud Storage, and Cloud SQL - Ability to develop new applications from scratch - Strong problem-solving and debugging skills - Excellent communication and collaboration skills If you meet these qual...

    $164 - $493
    Sellado
    $164 - $493
    7 ofertas
    Java Calendar Project 6 días left
    VERIFICADO

    I am looking for a Java developer to create a calendar application with the main purpose of generating event reminders. Skills and Experience: - Proficiency in Java programming language - Strong understanding of date and time functionalities in Java - Experience in creating user-friendly and customizable applications Features: - Ability to add events to the calendar - Integration with other calendars for easy synchronization - Customizable appearance to suit the user's preferences If you have any specific requirements for the implementation of event reminders, please let me know. Otherwise, I am open to suggestions and ready to discuss further details of the project.

    $155 (Avg Bid)
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    I am looking for a developer to implement email/password authentication for my existing Android app. Require a simple web site with a payment and subscribe page, including a database backend. Login Method: - The login method that I want to implement is Email and password. Additional Security Measures: - I do not require any additional security measures beyond the login. Timeline: - The project should be completed within 2 weeks. Ideal Skills and Experience: - Must have experience with Kodi software and IPTV - Experience with Android app development and authentication methods - Proficiency in Java and Android Studio - Knowledge of Firebase Authentication or similar frameworks - Strong understanding of secure authentication practices and protocols Please note that the selected fr...

    $713 (Avg Bid)
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    I am in need of an experienced Android app developer to create a utility app for me. I am open to suggestions for specific features and functions, and would appreciate help finalizing them. The app needs to be completed within 1 month. Ideal skills and experience for this job include: - Strong proficiency in Android app development - Experience creating utility apps - Ability to provide suggestions and finalize features and functions - Efficient time management to meet the 1-month deadline

    $126 (Avg Bid)
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    Java developer with GCP experience 6 días left
    VERIFICADO

    Looking for a Java developer with advanced experience in Google Cloud Platform (GCP) for a full-stack development project. The project timeline is less than 1 month. Ideal Skills and Experience: - Strong proficiency in Java - Extensive knowledge and experience in GCP - Experience in full-stack development - Ability to handle both frontend and backend development tasks - Strong problem-solving and debugging skills - Good understanding of cloud computing concepts and deployment strategies The candidate should be able to work efficiently and deliver high-quality code within the given timeline.

    $165 - $495
    Sellado Acuerdo de Confidencialidad
    $165 - $495
    1 ofertas

    I am looking for a skilled app developer who can create a comparison app for Food, Travel, Rides & Movie Tickets. The app should be available on both iOS and Android platforms. Main functionality: - The app should primarily focus on the ability to compare prices of different options within the food, travel, rides, and movie ticket categories. Design preferences: - I would like the app to have a colorful and vibrant design. Ideal skills and experience: - Experience in developing mobile apps for both iOS and Android platforms. - Strong knowledge of app development frameworks and languages, such as Swift and Java. - Familiarity with APIs and web scraping to gather and compare prices from various sources. - Ability to create an intuitive and user-friendly interface. - Attention to ...

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    Project Title: Create a Crypto Lotto Website and Apps Description: I am looking for a skilled developer to create a crypto lotto website and apps. Lottery Game: - I want to offer a traditional number-based lottery game. Specific Features and Functionalities: - I have a clear vision of the features and functionalities I want for the website and apps. - I would like to discuss my ideas further with the developer. Cryptocurrency Support: - I am open to suggestions regarding the specific cryptocurrencies that the site should support. Ideal Skills and Experience: - Experience in developing crypto lotto websites and apps. - Strong understanding of traditional number-based lottery games. - Ability to discuss and translate my clear vision into a functional and user-friendly website and a...

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    Codigos IR Tvs Samsung 6 días left
    VERIFICADO

    Precisa de um freelancer para cadastrar nossa empresa na samsung e colocar nossos codigos de IR no sistema de controle Remoto das TVS. A partir do minuto 1:25 do video mostra a configuração. Preciso que meus produtos apareçam nessa configuração.

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    I am looking for an experienced Android Java developer to create a professional networking app for personal use. The primary function of the app will be professional networking. Specific features that I have in mind for the app include: - Ability to create local VPN - Ability to create proxy server. - Ability to intercept network packet - I want code access methods from a outer file mean all other code should be properly arranged professionally - User privacy and security measures Ideal skills and experience for this job include: - Proficiency in Android Java development - Experience in building networking or social media apps - Knowledge of user authentication and security protocols - Familiarity with API integration and third-party libraries - Strong problem-solving and debugging ...

    $300 (Avg Bid)
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    I am looking for a freelancer with specific skills in full stack development for a project that involves developing a new website. The project is of intermediate complexity and requires specialized skills and moderate time commitment. Ideal Skills and Experience: - Proficiency in full stack development - Strong knowledge of front-end and back-end technologies - Experience in developing websites from scratch - Familiarity with graphic design principles - Understanding of cryptography and blockchain systems - Ability to implement secure and efficient encryption algorithms - Familiarity with blockchain technology and its implementation Key Responsibilities: - Develop a new website with an emphasis on user experience and functionality - Implement secure encryption algorithms to protect user ...

    $11 / hr (Avg Bid)
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    Need mobile phone 6 días left

    Project Title: Mobile Phone for Communication (Calling, Texting) Ideal Skills and Experience: - Proficiency in developing Android applications - Knowledge of mobile phone hardware and software - Experience in creating user-friendly interfaces for seamless communication - Familiarity with mobile network protocols and technologies Project Description: I am in need of a mobile phone that prioritizes communication through calling and texting. My budget for this project is under $200. I prefer the operating system to be Android. The primary purpose of this mobile phone is to facilitate smooth and reliable communication. Key Features: - Seamless calling and texting functionality - User-friendly interface for easy navigation - Reliable network connectivity for uninterrupted communication - Eff...

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    Automation 6 días left

    I am looking for a freelancer to develop a trading and investing bot for me. The specific tasks that I want to automate include data entry, email marketing, and social media management. I am open to suggestions for the automation tool or software that will be used. However, it should be cross-platform compatible. Ideal skills and experience for this job include: - Proficiency in programming languages such as Python or Java - Experience in developing trading or investing bots - Knowledge of data entry automation techniques - problem-solving and analytical skills If you have the necessary skills and experience, please submit your proposal for this project.

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    Project Title: Music recommendation system (Small college project) I am looking for a music recommendation system that provides mood-based recommendations. Preferred programming language: Visual Studio or Google Collab. The music recommendations should be presented in the form of individual song recommendations. Skills and experience needed for this job include: - Strong knowledge of programming languages such as Python, Java, or C++. - Experience in developing recommendation systems. - Familiarity with music metadata and analysis. - Understanding of mood classification algorithms. - Ability to integrate APIs or datasets for music recommendations. - Knowledge of data visualization techniques for presenting recommendations.

    $12 (Avg Bid)
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    android app 6 días left

    I am looking for an experienced Android app developer to create a utility app for me. Although I have a rough idea of the features I want, I am open to suggestions and improvements from the developer. Main Purpose: - The main purpose of the app is to provide utility to users. Platform: - The app will be developed for Android devices only. Ideal Skills and Experience: - Strong experience in Android app development - Proficient in Java and Android Studio - Knowledge of UI/UX design principles - Ability to suggest and implement creative and innovative features - Excellent problem-solving skills - Strong communication skills to understand and incorporate client's ideas and feedback

    $248 (Avg Bid)
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    I am looking for a skilled REST API developer who is proficient in JavaScript. Database Connection: - The REST API will connect with an existing database. Data Type: - The API will primarily handle transactional data. Ideal Skills and Experience: - Strong understanding and experience in JavaScript programming language. - Proficiency in working with REST API development. - Experience in connecting REST APIs with databases. - Familiarity with handling transactional data.

    $332 (Avg Bid)
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    mobile app 6 días left

    I am looking for a mobile app developer who can create a collaboration app for Android. Compatibility: The app should be compatible with the Android platform. Type of App: The app should be a collaboration app, allowing users to work together on projects and share information. Features and Functionalities: While I have some ideas for specific features, I am not sure how to implement them. Therefore, I am looking for a developer who can provide guidance and expertise in turning my ideas into reality. Ideal Skills and Experience: - Experience in developing Android apps - Strong understanding of collaboration and communication tools - Ability to provide guidance and suggestions for implementing specific features - Excellent problem-solving skills - Strong communication and colla...

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    I am developing several apps, i want some google policy expert to review app and give feedback whether any policy issue or not.

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    I am looking for a skilled developer to create a Restful API for vehicle number recognition and petrol pump reading. The API can be developed in any programming language I am open to suggestions and would appreciate the developer's expertise in selecting the most suitable one. Key Requirements: - Develop a Restful API for vehicle number recognition and petrol pump reading - Any suitable programming language - Ensure a high level of accuracy for both number recognition and pump reading, aiming for 99% and above Ideal Skills and Experience: - Proficiency in selected programming language - Experience in developing Restful APIs - Knowledge of various frameworks. - Expertise in computer vision and image processing techniques for accurate number recognition - Familiarity with data extra...

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    I am in need of a freelancer who can assist me with an Apache Beam pipeline using Java. Purpose of the pipeline: - The purpose of the Apache Beam pipeline is data processing. Existing codes: - I have existing codes that need to be modified. Timeline: - This project is urgent and needs to be completed within 1-2 days. Ideal skills and experience: - Proficiency in Apache Beam and Java programming language - Experience in data processing and modifying existing codes - Ability to work under tight deadlines and deliver high-quality results

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    Job description Java8 / Java11 with Spring, SpringBoot experience At least 7 years Good to have Scala 2.12 / 2.13, functional programming mind set (referential transparency etc) Experience in Roles of Developer, Architect and Tech Lead. Optional Proven experience in delivering highly scalable Software projects in production. Experience with Docker and / or Kubernetes Experience with CI/CD Experience with pair programming, TDD, DDD

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    Slot Machine 6 días left
    VERIFICADO

    Tenho um projeto em JAVA que está apresentando alguns erros porém fatais que impedem o funcionamento do mesmo. O erro em questão é de websocket para conectar o front ao backend a princípio identificados são os anexados aqui. Preciso de pessoas com conhecimento em websocket, java springboot, para me auxiliar nesse projeto e botar para funcionar esse código.

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    Maze Game in java -- 2 6 días left
    VERIFICADO

    I am looking for a freelancer to create a 2D graphics-based maze game for PC. I have a general idea of the features and mechanics I want in the game, but I am open to suggestions from the freelancer. The game should be designed to be played on a PC platform. Skills and experience required: - Proficiency in Java programming language - Experience in game development using Java and 2D graphics - Ability to create a visually appealing and interactive maze game - Knowledge of game mechanics and level design - Familiarity with PC platform and its requirements for game development.

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    I am looking for someone to help me with uploading a socket written in Python to AWS and retrieving its IP and port. I can provide details about the socket's functionality, but I do not have any existing documentation. Skills and Experience: - Strong experience with AWS EC2 for socket deployment - Proficiency in Python programming language - Familiarity with socket programming and networking concepts

    $21 (Avg Bid)
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    I am looking for a skilled developer who can set up a demo program to exercise a GPU. The program should be written in C++ and should be able to utilize less than 10 GPU cores. Specifics: - Programming language: C++ - Task: The demo program should be able to perform any task that fires multiple GPU cores. - GPU cores: The program should utilize less than 10 GPU cores. Ideal skills and experience: - Proficiency in C++ programming language - Experience in GPU programming and utilization - Knowledge of parallel computing and GPU architecture - Ability to optimize code for efficient GPU utilization

    $541 (Avg Bid)
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    Java Developer 6 días left
    VERIFICADO

    I am looking for a Java developer to assist with back-end development tasks for an intermediate level project. Should be able to write integration tests. --Available remotely to connect past 9:30pm IST

    $357 (Avg Bid)
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    O trabalho consiste em implementar um pequeno sistema que emula um "Cofrinho de moedas" em Java. Crie um menu em que é oferecido ao usuário:  Adicionar moedas de diferentes valores e países em seu cofrinho  Remover moedas específicas do cofrinho.  Listar todas as moedas que estão dentro do cofrinho  Calcular quanto dinheiro existe no cofrinho convertido para Real O objetivo principal do trabalho é avaliar o bom uso do conceito de herança e polimorfismo. O projeto deve possuir uma classe Principal além das classes descritas no diagrama UML abaixo. A classe Cofrinho deve possuir como atributo uma coleção de Moedas, que por sua vez é uma classe mãe abstrata de outras classes específicas de...

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    I am looking for an experienced Android developer who can add Login/Register features & take a photo of the front camera when a wrong password is entered and displays info of attempt to my existing Android Studio app. The ideal candidate should have strong proficiency in Java and experience working with Android Studio. Specific requirements for the project include: - Implementing a user login and registration system - Creating secure authentication and password reset processes - Storing user information securely in a database Skills and experience required: - Strong proficiency in Java and Android Studio - Experience with implementing user authentication and registration systems - Familiarity with database management and security best practices The project timeline is expected to b...

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    if you interested with my budget then place your bid. (( Android and IOS )) check attached I have design, so no need design, you just develop it.

    $85 (Avg Bid)
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    Android APPs Read sms 6 días left
    VERIFICADO

    I am looking for an experienced Android developer to create an app that will read all incoming SMS messages and store their content in a database. The main purpose of the app is to populate the database with the content of each SMS message. Skills and experience required: - Proficiency in Android app development - Knowledge of SMS message handling in Android - Knowloedge of running USSD request - Experience with database integration and management - Strong understanding of data collection and storage The ideal candidate will have a good understanding of security measures to ensure the app securely reads and stores SMS messages. They should also have experience in efficiently managing large amounts of data in a database.

    $164 (Avg Bid)
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    I am looking for a freelancer who can duplicate Plugin A, an open sourced plugin, and deploy it on a server. I have not yet decided on a specific server for deployment. Skills and Experience Needed: - Experience with duplicating and deploying open sourced plugins - Familiarity with Plugin A and its functionalities - Proficiency in modifying existing functionalities in plugins

    $164 (Avg Bid)
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    Update Traccar protocol 6 días left
    VERIFICADO

    Title: Update Traccar Protocol for GPS Tracker using Java Requirements: Update existing Upro protocol code of traccar to include following parameters: = ; = ; = ; = ; = ; = ; = ; = ; = ; = ; = ; = ; = ; = ; = ; = ; = ; = ; = ; = ; = ; = ; And following parameters: Wifi access points: Cell information In addition, Define 6 new commands for same protocol. All protocol documents will be provided.

    $18 (Avg Bid)
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    DESIGNING & DEVELOPING CLOUD APPLICATIONS The project requires the design and development of a cloud application, with the following specifications: Cloud Platform: Amazon Web Services (AWS) Programming Language: Python Primary Function: Business Process Automation Skills Needed: Amazon Web Services (AWS): Proficient in developing cloud applications using AWS. Experience with AWS services for efficient and reliable cloud-based solutions. Python Programming: Strong skills in Python programming language for application development. Business Process Automation: Experience in automating business processes. Understanding of relevant technologies and frameworks for business process automation. Cloud Architecture: Familiarity with cloud architecture principles. Knowledge of best pract...

    $165 (Avg Bid)
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    29 ofertas

    Implementing RESTful Service in Java for Data Retrieval within a month Skills and Experience: - Proficient in Java programming language - Strong understanding of RESTful principles and best practices - Experience with designing and developing RESTful APIs - Knowledge of data retrieval techniques and database integration - Familiarity with JSON and XML data formats - Ability to work within tight deadlines and deliver high-quality code

    $168 (Avg Bid)
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