spot books

developer pits are not willing, due to the added workload. There is one other aspect developers are in performance, concurrency, and may change a synchronous call to asynchronous for PM thinking. At this time the product manager needs to know that there is a new page to remind the user "background processing", the process has changed. CQRS The domain generated by multiple transactions in the schema event who runs first who runs after? Two entities teacher, student Transaction 1

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instance initialization Dynamic proxies, which dynamically create proxy,proxy by reflection, are used to add some additional actions you want to make to target, and then forward the request to target at the appropriate time. In other words, the proxy has a layer of encapsulation modification on target. HashMap, adjust the performance of the container by setting the capacity and load factor. When the default capacity reaches Three-fourths full, it will automatically expand re-hash. Theref

variable declared when it is not initialized to undefinedJavaScript cannot automatically assign a value to NULL for a variable, only through code: var a = null2. Converting undefined and null to type conversions can sometimes have different results:Convert to digital:undefined-> NAN; Null-0Converts to a Boolean value of:undefined-> false; Null-FalseConvert to string:undefined-> undefined; NULL, NULLV. About arrays1. When data is viewed through typeof, it returns an object2. When adding elements

Hot Spot recommendation: deep understanding of Java class loaders First, let's review the steps for loading a java class on the java VM: After the java file is compiled by the compiler, it becomes a bytecode file. class file), the class Loader (ClassLoader) read. class file and convert it to java. lang. an instance of the Class, and finally an object of the Class is created through the newInstance method. ClassLoader is used to locate the correspondi

In-depth understanding of Java Virtual Machine (2) Creation of Hot Spot Java objects, memory layout and access methods In-Memory Object creation, object structure, and access method.I. Object Creation At the language level, object creation is just a new Keyword. What is the process in a virtual machine? (1) determine whether a class is loaded. When the VM encounters a new command, it first checks whether the parameter of this command can locate a Clas

Copy an example belowVarLru=Require"Lru-cache= {max: 500, lengthfunction (n, key) {return n * 2 + Key. length}, dispose: function (key, n) {n.close ()}, MaxAge1000 * 60 * 60}, Cache = LRU (options) I'm supposed to be familiar with this part of you. MaxAge This parameter is very easy to misleading, here I detailed the maxAge. I always thought that when the set is over a key-value, the LRU will automatically delete the key-value when it exceeds the value set by MaxAge. However, after some

elements of elements .In this line of code, note that set is a recursive pass-through subset:# Set[j] + = (Elements[i]) #Why Elements? SET[J] = set[j] + According to the question 2,+= Set[j] is still the original set[j], it may be the element of elements. SoSET[J] + = Elements[i]may be equivalent toElements[*] + = Elements[i]Once the elements of the elements are changed, the result is naturally wrong.How to solve this problem? According to question 3, as long as the set and elements are "no

The color mid-autumn spot of the atmosphere by Photoshop The effect word is to use brush stroke path to get, but the production of the time to set a preset, and adjust the size of the brush, layering different effects, and then adjust the overall color, increase brightness. Final effect 1, a new 1000 * 750 pixels, resolution of 72 pixel/inch canvas, background filled with black. 2, in the following text picture above right click "P

There are so many ways for people to grind their skins, and basically everyone has their own way of grinding the skin. This tutorial is to apply the blur filter and mask to grind the skin. Blur the layer first, then add the mask to eliminate the main spots, if the effect is not good can add a larger blur. Generally two times you can basically grind well.OriginalFinal effect 1, open the original material, press CTRL + J to copy a layer of background layer, the Copy execution: filter > Blur > Gau

Spot text with a brush stroke is the fastest. First choose the text you want, and turn the text into a path, select the brush you want, set the desired effect in the brush preset, and then stroke the path with the brush to get good results, and later add some glow style will be more beautiful. 　Final effect 1, New 1000 * 600 pixel document. The foreground color is set to #271c2d and the background color is set to #141416. Select the grad

The author's method of making light silk is very good. Procedure: Set the brush preset with your own brush before making it. Then use the pen to check out the path, and set a good brush stroke path, to get the initial spot. And then use the filter motion blur, with the gradient overlay plus color, and deformation tool deformation treatment, get the initial beam, later strengthen the effect, and then add decoration can. Final effect 1,

The tutorial is divided into two major sections. First is the text, input text, the outline of the text into the path, and then set the brush properties, with the brush stroke path to get the initial text, and then by copying, fuzzy processing, add style and so on to increase the luminous effect of text. The back is the background of the spot, the method is basically similar.Final effect 1, a new size 8

spot, Zhu Di, the capital, Shandong three relations of the presumption is the thinking of death cycle. Read here coincides with the recent encounter similar things, quite a feeling.April when my house will expire, the new year came after my roommate and I even thought of not wanting to move directly to change house, so we looked for about half a month house without fruit. Our problem is that we can accept rents that are slightly more expensive than l

definition, with the following basic structure:{function (name) { alert (' Hello ' + name + '! ');}} (' Martin ')Subsequent () arguments can be passed, and the values declared inside are automatically passed to the parameters of the functionUsing such self-tuning anonymous functions as above will not produce any global variablesIv. functions that can be rewritten on their ownThis function is characterized by the ability to perform a function rewrite after execution, and here is an example:fu

propertiesWhen an object is created, the object automatically generates a constructor property that points to a reference to the constructor function that is used to create the object.Like Hero.constructor, the return is Hero (name)You can use this property to create another new object, as shown in the following example:var hero1 = new Hero.constructor (' Martin ');Note that the above code can be used to create new objects in this way even if the hero object was not previously created.If the ob

*begin =head;slistnode*cur=head;while (Begin->_next) { while (Cur->_next) {if (cur->_data> cur->_next->_data) { swap (cur->_data,cur->_next->_data); }cur=cur->_next; }begin= begin->_next;}}5. find the middle node of a single linked list, which requires only one link list to be traversedSlistnode*findmiddle (Slistnode*head) {if (Head==NULL) {returnNULL; }SListNode*slow=head;SListNode* fast=head;while (Fast->_next) { if (Fast->_next) { fast=fast->_next; if (Fast->_next) { fast=fast->_next; }els

Title: Give you a n*n form, two people take turns to operate, each time in a position to put or win a pawn;If a state, before it appears, then the other wins, ask who wins, if no one wins, output draw.Analysis: DS, data structure, hash function, state compression.Each row is stored in a single bit, a one-dimensional array represents a state, and a hash table is used to store the lookup.Description: Note that the rotated State is considered to be the same.#include UVa 141-the

indicator three-rail upward movement, MA moving averages appear long, the market direction is long. But the MACD indicator again bonded with the dead fork downward signs, and kinetic Energy Green column volume, coupled with the RSI indicator three-wire downward divergence, short-term long power shortage. Comprehensive to analyze the late market first fell back and then rebound.Spot crude oil ning expensive asphalt operation suggestion:Recommendation one: 3920-3940 line layout empty single, stop

average indicator;2. Generally, the 10-day average line is used to analyze the support and resistance provided by the average system (for short-term operations) Fifth: analysis of technical indicators.Most investors are familiar with some technical indicators, such as the relative strength indicators RSI (noisy, not recommended) and boll. Take the Bollinger line as an example for analysis. The Bollinger indicator consists of four lines, namely the upper rail line, middle rail line, lower rail l