Thermal printer in Android

The natural database connection pool

The FileDownloadConnection implemented with the okhttp3

XMPP Connection Server for FCM

Fully customizable internet connection listener with the built-in alert for React Native

Several samples show how to use the APIs of the Nearby Service.Discovery and communication with devices in the vicinity. Give your users physical proximity services with in-app data sharing and messaging.

Android library for connecting multiple devices over bluetooth

👥 A simple Chat Client in Java, implemented with the Observer pattern 👥

An Open-source Library for replacement of native JDBC protocol , DBJ.jar can easily connect to database with some Method, So user have to give the credentials and the parameter into the function ,DBJ will handle the rest part(Connection, Driver Manager, Prepared Statement, Resultset etc)

源码详解系列(二) ------ jdbc-mysql的使用和分析

Log DSL connection status & quality.

Netty 기반 TCP 네트워크 프로그래밍 시 'TCP 연결 지속' 서비스를 제공합니다.

Toolset for Jdbc

A Cordova plugin for managing Wifi access points and connection state on Android and iOS

Customize FlameCord!

Easy use of Liquibase in pure Java

Communicator is a framework for message-based binary communication on Android

A simple flow chart like visio

Implementación de una conexión de base de datos

A little SQL connection pool capable of creating a datasource and improving your database access speed.