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Registration of broadcasts is divided into static registration and dynamic registration. Static registration configures the receiver node in the xml and parses the xml file after the application starts. The specific registration process is handled by the PackagerManagerService. This article focuses on the dynamic registration of broadcasts, i.e ...

1. Matching pattern Summary Similar to switch...case in java, but much more powerful and flexible.The goal is to solve the matching and processing problems when a pattern (value is also one of the patterns) is met.Instructions A pattern match consists of a series of alternatives, each starting with the keyword case. Each alternative cont ...

Objects and References Variable types in Java, except for the basic types, are referred to as reference types. Basic types: byte, short, int, long, float, double, char, boolean; Reference type: Array, String, Custom class; Objects in Java operate on them by reference: Example: Custom class Teacher(Teachers) class Teacher{     ...

Visual Sudio 2019 + libtorch(Pytorch C++ Library) Environment Configuration Preface: To facilitate the deployment of existing deep learning algorithms in engineering, this paper will configure the deep learning framework libtorch (C++ interface of Pytorch) under the windows environment. I. Personal Environment Windows10 64-bit Visual Studio 20 ...

Introduction to Thread Pools Java threads correspond to the threads of the system, and creating threads is expensive in system resources. Too many threads consume more system resources, and context switching of threads incurs system resource overhead. Thread pools can unify thread management, balance the direct relationship between threads ...

7. Callable interface 1. Multiple ways to create threads Creation MethodRemarksIntegrate Thread ClassNo return valueImplement Runnable InterfaceNo return valueThrough the Callable interfaceCan have a return valueThrough thread pools 2. Differences between Callable and Runnable interfaces DifferenceCallableRunnableIs there a return valueyesno ...

Preface Not long ago, I published a post about TLS protocol configuration that I have drilled through. After verification by a third-party partner, there are unsafe Suites for this TLS protocol and we need to solve them quickly, so we will start to work on this article! Third-party partners are demanding on platform security, and we have issued ...

Baidu map Android positioning SDK is a set of easy-to-use positioning service interfaces for Android mobile applications, focusing on providing the best comprehensive positioning services for developers. By using Baidu positioning SDK, developers can easily realize intelligent, accurate and efficient positioning functions for applications.     ...

1. What is template mode? Define the skeleton of an algorithm in an operation, deferring some steps to subclasses. Template Method lets subclasses redefine certain steps of an algorithm without changing the algorithm's structure. Template Method Pattern: defines the framework of an algorithm in operation, and delays some steps to subclasses. S ...

1, Tool preparation       1.maven   Version maven-3.8.2       2.tomcat   Version tomcat-8.5.65       3. Database   Version 8.0.24       4. The database source is c3p0   Version 0.9.5.2 2, Database construction statement Note: the following sql statement ...