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Java programming ideology Study Notes (1), programming ideology Study NotesObject Introduction 1. Abstract all programming languages provide abstract mechanisms. For example, assembly is a slight abstraction of the machine, and C language is an abstraction of assembly. In comparison, these languages have strong limitations in solving problems. Because they force you to think from the machine perspective. Pr

Spring boot document Study Notes day02 and Study Notes day02 1.Start to report an error. View debug $ Java-jar myproject-0.0.1-SNAPSHOT.jar-debug 2.Custom banner The banner that is printed on start up can be changed by addingbanner.txtFile to your classpath or by settingspring.banner.locationProperty to the location of such a file. If the file has an encoding other than UTF-8, you can setspring.banner.char

Java Study Notes (2), java Study NotesI. Common java Data Types Data Type Bytes occupied Note: Int 4 Char 2 Double 8 Float 4 Float a = 2f; (f or F must be added; otherwise, the default value is double) Boolean 1 Only true or false without 0 or non-0 String String type Long/short int 8/2

Rupeng Net study notes (8) CSS and pennet Study Notes css CSS I. Introduction to CSS 1. CSS (Cascading Style Sheet) Cascading Style Sheet is a computer language used to control the Display Effect of HTML content. 2. CSS pre-defines many style attributes related to the display effect, such as color and font-size. If you want the html content to display a certain effect, apply the corresponding CSS style attr

Rupeng net Study Notes (10) DOM and pengnet study notes dom DOM notes1. Introduction to DOMDocument Object ModelDOM node tree model: the entire document is divided by nodes from large to small. Each content is counted as a node.The dom api programming interface can be used to manipulate any part of the page content.Idea of js + DOM programming: The execution logic of the Javascript basic syntax control prog

EXTJS 5 Study Notes 2, extjs Study Notes 2 1. The Components Hierachy Component System 2. XTypes and Lazy Instantiation xtype and delay Initialization1) Each component has a symbolic name xtype 2) initialize now: Ext. create () Delayed initialization: xtype 3. Show and hide Showing and Hiding1) All components have built-in show () and hide () methods. 2) the hidden css is display: none by default. You can

Oracle Study Notes eight tablespaces and oracle Study NotesA tablespace is a collection of one or more data files. All data objects are stored in a specified tablespace. However, they are mainly stored in tables, which are called tablespaces.Partition TableWhen the amount of data in a table increases, the speed of data query slows down, and the performance of applications degrades. In this case, you should

MSMQ Study Notes 1-Overview, msmq Study Notes I. What is MSMQ? Message Queuing (MSMQ) is a Message-oriented middleware developed by Microsoft and can be used for asynchronous communication within the program or between programs. The main mechanism is: the Message sender puts the information he wants to send into a container (called Message), and then saves it to a Message Queue (Message Queue) in the publ

Php entry-level self-study demonstration, php entry-level self-study demonstration // Function Definition Function name (){ Echo "this is a no-argument function "; } Name (); // No parameter function call Function name ($ age, $ height ){ Print "This is a function with parameters Echo "height". $ height. ", age:". $ age. "CM "; } Name (20,170 ); /* The following are some of the knowledge points reco

Front-End General Framework feasibility study report pop-up window, framework feasibility study report I have been working in the power company for two years. All applications developed are based on H5 applications. The H5 reference is based on cordova. the js library is developed, and various outsourcing companies are confused about how to develop their applications. (In the next article, I will introduce

EasyUI self-study 01, easyui self-study 01 JQuery EasyUI is a jQuery-based framework that integrates various user interface plug-ins. The jQuery EasyUI framework provides everything you need to create a web page and helps you easily build a website. I am a good news for people who are not suitable for front-end UIS. Now I will record the first day of easyUI. Download the package at http://www.jeasyui.net/do

HTML5 Study Notes 2: HTML basics and html5 Study NotesI. HTML title The HTML header is defined by the Ii. HTML Section HTML paragraphs are defined by tags 3. HTML links HTML links are defined by tags Iv. HTML Images HTML images are defined by tags . Note:The image name and size are provided in the form of attributes. For the above Code:

HTML5 Study Notes: Three HTML elements, attributes, titles, paragraphs, and html5 Study NotesI. HTML elements The HTML element usesStart tagStart The HTML element usesEnd tagTermination Element ContentIs the content between the start tag and the end tag. Some HTML elements haveEmpty content) Empty ElementClose in start tag(End with the end of the start tag) Most HTML elements can haveAttribute Nested

Python Study Notes 2: Build sequence: List derivation and generator expression, python Study NotesWelcome to my website: www. comingnext. cn1. about Python built-in Sequence Types A. differentiate container Sequences Based on whether different types of data can be stored: The list, tuple, and collections. deque sequences can store different types of data.Flat sequence: Str, bytes, bytearray, memoryview, and

= LocalDateTime.now(); DayOfWeek dayOfWeek = now.getDayOfWeek(); if(dayOfWeek!=DayOfWeek.SATURDAY dayOfWeek!=DayOfWeek.SUNDAY){ System.out.println("上班时间"); return true; } else{ System.out.println("休息时间"); return false; } }3. Code cloud codes Submission Record 4. PTA Experiment Summary A: In the ide, you can use the program code auto-generation function to generate a value method, Click source Generate Constructors from Superclass -to Create an empty parameter constructor; click Source

fingerprint is 05:51:e5:c4:d4:66:9b:af:5b:c9:ba:e9:e6:a4:2b:fe.Is you sure want to continue connecting (yes/no)?Workaround:Vim/etc/ansible/ansible.cfg or ~/.ansible.cfg　　　　[Defaults]host_key_checking = FalseYou can also disable such hints by setting the system environment variable　　　　Export Ansible_host_key_checking=false3.2 When using Paramiko mode, the host keys check will be very slow3.3 By default, Ansible records information such as the parameters of some modules into the Syslog log file o

robot, it is important that the hardware (motor, reducer) is important or the bottom control algorithm. Complete electrical drawings should be included in the section Normalize nouns. Identification and code of the document, identification of electrical symbols; Figure and the callout of the figure. Subdivided into the schematic diagram, function diagram, circuit diagram, wiring diagram; Form. The function table and the time permit table diagram; File-related information. Part

A Preliminary Study on WCF-6: configure a WCF Service, a preliminary study on a wcf-6 Service WCF Service configuration is the main part of WCF Service programming. As the basic framework of distributed development, WCF uses the configuration file method when defining services and clients that define consumption services. Although WCF also provides a hard programming method, you can configure the server and

TDD Study Notes [3] --- do I need to test non-public methods ?, Tdd Study NotesPreface In Visual Studio 2012, there is an important change to the Unit Test section: Originally, for the non-public part of the test object, developers can use the accessor automatically generated by Visual Studio 2010 to perform the test. However, in Visual Studio 2012, this function is removed. The principle behind Accessor is

/************************************** Serial Communication Experiment* Oscillator 11.0592 MHz* Baud rate 9600bps* Interrupt mode implementation: the microcontroller receives computer data and sends it back to the computer after adding 1***************************************/ # Include Unsigned char dat; *******************/Void uart_config (unsigned long Baud, CY) // baud rate, Cy Crystal Oscillator{Tmod = 0x20; // The timer 1 working mode. The default value is.Th1 = 256-(CY/(12*32 * baud ));