notify to wake up the thread and execute the task.
Private void sched (TimerTask task, long time, long period) {// All schedule methods call this method if (time
So when is TimerThread started? You can also guess it. it must have been executed when Timer was created:
Public Timer (String name) {thread. setName (name); thread. start (); // start thread}
After the execution of the main thread is complete, the Timer thread may still be in the blocking or other state. sometimes this is not w
We can see that sometimes the controller under the protected directory is used, and sometimes the controller in the module is used. how can this problem be solved, see the following analysis. the url path using the yii Framework is generally like hostname /? R = xxxx/xxxx sdfs = dsfdsf
We can see that sometimes the controller under the protected directory is used, and sometimes the controller in the module is used. the specific solution is as follow
PHP simple shopping cart code sharing and analysis
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$velocityCount-->
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1.[PHP] code
// Code generated by the shopping cart session if (! $ Session ! $ Scid) {/* session is used to differentiate each shopping cart, which is equivalent to the ID card number of each car. scid is used to identify only one ID numbe
Ava collection --- source code analysis of HashSet, ava --- source code of hashset
1. HasnSet Overview
Hashset implements the set interface, which is supported by a hash table (actually a HashMap instance. It does not guarantee the set iteration sequence. In particular, it does not guarantee that the order remains unchanged. This class allows the use of Null El
= JQuery.fn.extend =function() {}; //extending the static method on jqueryJquery.extend ({//Ready Bindready //Isplainobject Isemptyobject //Parsejson Parsexml //Globaleval //Each makearray inArray merge grep map //Proxy //Access //Uamatch //Sub //Browser }); //here, the jquery object is constructed, and the code behind it is an extension of the jquery or j
Analysis of various encryption technologies and code samples in PHP, and php encryption code samples
Symmetric encryption (also called private key encryption) refers to the encryption algorithm that uses the same key for encryption and decryption. It is also called the traditional cryptographic algorithm, that is, the encryption key can be derived from the decryp
JDK source code analysis collection 01 overall framework, jdk source code 01 overall
A collection class is a tool class provided by java, mainly including List, Set, Map, and vector. All collection-related classes are located in java. util.
The overall framework of the Collection class is shown in:
Description of the overall framework:
The top-level interfaces i
Volley Library source code analysis, volley Library source codeZookeeper Volley uses the thread pool as the basic structure, mainly divided into the main thread, cache thread and network thread.The main thread and cache thread have only one thread, while the NetworkDispatcher thread can have multiple threads, which can solve parallel problems. For example:In the lower-left corner, the NetworkDispatcher thre
Interpretation of source code based on Annotation configuration Bean Definition
The first part of this series analyzes the source code of the
Annotation-based Bean parsing portal
As shown in Figure 2 above, the last Loop sequence diagram in the lower-right corner is the entry for the parse Bean for the Annotation configuration, so its detailed steps refer to the ana
JQuery-1.9.1 source code analysis series (10) Event System Event packaging, jquery-1.9.1 source code
In the previous article to introduce you to the jQuery-1.9.1 source code analysis series (10) Event System of the Event System architecture, this article continues to introdu
Analyze and parse the seven major PHP code tools and parse the php code. The seven major tools for analyzing and parsing PHP code, parsing php code has become one of the most popular programming languages nowadays, however, many PHP programmers cannot find the right tools to help them analyze and parse PHP
LinkedHashMap source code analysis of Java Collection series, linkedhashmap source code
In this article, we started to analyze the source code of LinkedHashMap. LinkedHashMap inherits HashMap, which means that LinkedHashMap is extended on the basis of HashMap. Therefore, before reading the source
PHP tags, keywords, classes, numbers, and lexical source code for PHP lexical parsing source code analysis
I have never engaged in web applications before. Recently I want to study webshell and find that php syntax is too weird. I just want to look at the PHP kernel lexical analysis
1. Overview
The following describes how Hadoop submits user-written MR programs in the form of jobs.
It mainly involves four java class files:
Org. apache. hadoop. mapreduce:
Job. java,JobSubmitter. java
Org. apache. hadoop. mapred:
YARNRunner. java,ResourceMgrDelegate. java
2. Code Analysis and execution logic process
1) The customer runs the program under the writing class, which saves the implemen
ButterKnife source code analysis, butterknife source code
Speaking of Butterknife, we will think of the compile-time annotation. Here I emphasize several important concepts:
What is IOC?
Inversion of Control, abbreviated as IOC. What does it mean? It is a class that requires many member variables. In traditional writing, if you want to use these member variab
[Android] Volley source code analysis (I) architecture, androidvolley source code
Volley: a google framework for asynchronous processing. Because of its ease of use and good api, it can be widely used. As always, I control the source code. Let's first use a simple piece of code
(); count = s.readInt(); value = (char[]) s.readObject(); }After the stringbuilder analysis is complete, it can be seen that there is no complicated logic in stringbuilder, And the implementation code is mainly in abstractstringbuilder. The following is an analysis of stringbuffer. We all know that the biggest difference between stringbuffer and
Weka algorithm Classifier-tree-RandomForest source code analysis (2) code implementation, randomforest
The implementation of RandomForest is exceptionally simple and simply beyond the expectation of the bloggers. Weka combines Bagging and RandomTree in the implementation mode.
1. RandomForest Training
The code for b
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