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- Loading modes of four Android activities WORD version
- This document mainly talks about the four loading modes of Android activities; the status of each activity is determined by its position in the activity stack (which is a LIFO that contains the queue of all running activities). The life cycle of Activty is also the life cycle of the process in which it is located. I hope this document will help friends in need; interested friends can come and take a look.
- 2024-02-29 0 1088
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- Summary of the four publishing methods of WebService Chinese WORD version
- This document mainly talks about the summary of the four publishing methods of WebService; CXF and spring are currently the most popular way to build webservice. However, it is rumored that cxf and jdk1.5 are somewhat incompatible. I have not encountered it. The problem I encountered is that cxf and jdk1.5 are not compatible. was6.1.1 is not compatible, which is reflected in the fact that the jar package "wsdl4j-1.6.2.jar" required for cxf reports an error. The error reported is: java.lang.IncompatibleClassCh
- 2024-02-28 0 1247
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- Commonly used open source frameworks for Android Chinese WORD version
- This document mainly talks about the open source frameworks commonly used in Android; during the development process of Android, in order to improve development efficiency and shorten the development cycle, programmers often use various open source frameworks to achieve rapid and Simply implement the required functions, friends in need can download it and have a look
- 2024-02-28 0 1041
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- Shell scripting basics Chinese WORD version
- Shell itself is a program written in C language, which is a bridge for users to use Linux. Shell is both a command language and a programming language. As a command language, it interactively interprets and executes commands entered by the user; as a programming language, it defines various variables and parameters, and provides many control structures found only in high-level languages, including loops and branches. Although it is not part of the Linux system core, it calls most of the functions of the system core to execute programs, create files, and coordinate the running of various programs in a parallel manner. Therefore, for
- 2024-02-03 6 2665
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- Python operation Mysql example code tutorial
- This article introduces various code examples and detailed introductions such as Python operating MYSQL, executing SQL statements, obtaining result sets, traversing result sets, obtaining a certain field, obtaining table field names, inserting pictures into the database, executing transactions, etc. Most of the code is A sumptuous and beautiful code feast. If you want to view the online version, please visit: https://www.jb51.net/article/34102.htm
- 2024-01-26 0 1364
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- Writing a small database with Delphi Chinese WORD version
- This document mainly talks about using Delphi to write small databases; Delphi is one of the most popular programming tools at present. It has many advantages in developing database applications and provides a powerful way to develop database applications based on the client/server model. ability. In terms of database access, it is equipped with Borland Database Engine (BDE), which can access various databases through SQL Links, ODBC and other technologies, and can also use ADO to access various databases. In terms of application client development, Delphi provides
- 2024-01-18 0 608
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- Android programming virtual machine Dalvik tutorial pdf version
- Android programming virtual machine Dalvik tutorial pdf, introduces the difference between Dalvik and the standard Java virtual machine and the difference between the operating environment, as well as the situation and prospect analysis of Dalvik, the functional description of various Java packages in Android, related file types, application structure analysis, Introduction to Android Adb tools, etc. This knowledge is a perfect prelude for junior friends who are about to engage in Android programming.
- 2024-02-28 0 622
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- Usage examples of Android database SQLite Chinese WORD version
- Android provides three data storage methods, the first is file storage; the second is SharedPreferences storage; and the third is database SQLiteDatabase storage. I don’t need to say more about file storage, but SharedPreferences can access simple data (int, double, float.etc). It is often used for data caching because it is simple to read and store. For details, please refer to this series. Advanced Tutorial for Android Experts (7) - Android Medium
- 2024-02-29 0 930
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- GitHub for Windows graphic tutorial Chinese WORD version
- This document is a graphic tutorial on using Github for Windows; Git has become very popular, and even Codeplex has now promoted Git. Github is full of various high-quality open source projects, such as ruby on rails, cocos2d, etc. For programmers who are accustomed to the Windows graphical interface, using Github requires some time and patience. However, Github recently released Github for Windows, which greatly reduces the learning cost and difficulty of use.
- 2024-01-31 1 1392
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- Android Developer Guide Part 1: Getting Started
- Android Documentation - Developer Guide - Part 1: Getting Started - Chinese and English Version Android provides a rich application framework, which allows you to build innovative applications and games for mobile devices in the Java language environment. The documents listed in the left navigation provide detailed information on how to build applications using Android's various APIs. Part One: Introduction 0. Introduction to Android (Introduction to Android) 1. Application
- 2024-01-29 2 1920
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- Delphi2006 tutorial DbExpress efficient database development chm version
- When the author decided to update this book, it was hard to believe that nearly 4 years had passed from Delphi 7 to Delphi 2006. During this time, Borland's database access technology has also undergone considerable changes. First let's introduce the subject of this book: dbExpress. dbExpress has developed from version 2.0 of Delphi 7 to version 3.0 of Delphi 2006. In addition to updating support for the latest versions of various databases, the more important progress lies in the continuous improvement of execution efficiency and the improvement of Win32
- 2024-01-19 0 723
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- Introduction to Adobe Flex Chinese WORD version
- Flex is a component-based development framework that can generate a rich Internet application run by Flash Player. Flex combines a standards-based language with a variety of extensible user interface and data access components, allowing developers to build applications with rich data presentation, powerful client logic and integrated multimedia. Flex is a rich client application development toolkit built on the Flash platform. As a new technology representative in the Rich Internet Application (RIA) era, Flex has been used by Adobe since 2007.
- 2024-01-17 5 3291
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- Android resources and internationalization settings Chinese WORD version
- This document mainly talks about Android's resources and internationalization settings; resources are external files (files without code), which are used by the code and compiled into the application at compile time. Android supports different types of resource files, including XML, PNG and JPEG files. XML files have different formats depending on the description. This document describes what files, syntax, and various formats can be supported. I hope this document will help friends in need; interested friends can come and take a look.
- 2024-01-29 0 982
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- Android development notes: Visual UI design DroidDraw explanation pdf
- New version of Android development notes - visual UI design, explanation of DroidDraw, pdf version, high-definition version, the content is mainly about the use of various interface functions of DroidDraw, and introduces the writing of some examples based on this knowledge, so as to consolidate the application of DroidDraw principle knowledge wait.
- 2024-02-28 0 1082
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- Ruby on Rails string processing Chinese WORD version
- This document focuses on Ruby on Rails string processing; there are many ways to create a string in Ruby. There are two ways to represent a string: surrounding the character with a pair of single quotes ('str') or surrounding the character with a pair of double quotes ("str"). The difference between these two forms lies in the processing of the surrounding string. Strings constructed with double quotes can handle more escape characters. I hope this document will help friends in need; interested friends can come and take a look.
- 2024-02-02 0 1236
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- python tutorial for beginners Chinese WORD version
- This document is a tutorial for newbies to Python; Python is a computer programming language. You may have heard of many popular programming languages, such as the very difficult to learn C language, the very popular Java language, the Basic language suitable for beginners, the JavaScript language suitable for web programming, and so on. Interested friends can come and take a look
- 2024-01-23 0 769
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- Android adb application and operation commands Chinese WORD version
- Android Debug Bridge (adb) is a multi-purpose tool that helps you manage the state of your device or emulator. You can add adb through the following methods: • Run shell commands on the device • Manage the emulator or device through port forwarding • Copy or copy files from the emulator or device
- 2024-02-26 0 826
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- CXF creates webservice server Chinese WORD version
- This document mainly talks about CXF creating webservice server; Apache CXF is an open source Services framework. CXF helps you use Frontend programming API to build and develop Services, like JAX-WS. These Services can support multiple protocols, such as SOAP, XML/HTTP, RESTful HTTP or CORBA, and can run on multiple transport protocols, such as HTTP, JMS or JMS.
- 2024-02-28 0 909
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- Six major advantages of Android system Chinese WORD version
- This document mainly talks about the six major advantages of the Android system; as a smartphone operating system strongly advocated by Google, Android's surpassing the iPhone is not an accident, but an inevitable one. So what are its advantages? Let’s take a brief look at it. I hope this document will help friends in need; interested friends can come and take a look.
- 2024-02-27 0 533
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- Matlab implementation of optimization method Chinese WORD version
- The technology of using optimization methods to solve optimization problems is called optimization technology, which includes two aspects: 1) Establishing a mathematical model, that is, using mathematical language to describe the optimization problem. The mathematical relationships in the model reflect the goals and various constraints to be achieved in the optimization problem. 2) Mathematical solution After the mathematical model is built, a reasonable optimization method is selected for solution. Using Matlab's optimization toolbox, you can solve linear programming, nonlinear programming and multi-objective programming problems. Specifically, it includes linear and nonlinear minimization, maximization, quadratic programming, semi-infinite problems,
- 2024-01-18 0 817