practical artificial intelligence programming with java source code

Java concurrent series of AbstractQueuedSynchronizer source code analysis (summary analysis ), To learn Java concurrent programming, you have to understand the java. util. concurrent package. This package contains many frequently

a Freemarker introduction Apache Freemarker is a Java Template Engine library, official website: http://freemarker.incubator.apache.org/. Apache Freemarker is a template engine:a Java library to generateText Output (HTML Web pages, e-mails, configuration files, sourceCode, etc.) Based on templates and changing data. Templates areWritten in the Freemarker Template Language (FTL), which are a simple,Speciali

(i) Collection framework:　　The Java language designer has made some specifications (interfaces) and implementations (classes that implement interfaces) for commonly used data structures and algorithms. All abstract data structures and operations (algorithms) are collectively referred to as the collection framework.Programmers in the application, do not have to consider the data structure and algorithm implementation details, only need to create some o

file name when saving based on Web page URLSavetolocalnewfile (Responsebody, path,name+type); } Catch(HttpException e) {//A fatal exception may be the protocol is wrong or the content returned is problematicSystem.out.println ("Please check your provided HTTP address!"); E.printstacktrace (); } Catch(IOException e) {//Network exception occurredE.printstacktrace (); } finally { //Release Connectiongetmethod.releaseconnection (); } } Private Static voidSavetolocalnewfile (

This article will be from the traditional bio to NiO to the AIO from the shallow to the deep introduction, and enclose the complete code explanation. This example is used in the following code: The client sends a formula string to the server, and the server evaluates the result to the client. All the instructions for the code, directly as comments, embedded in th

see a 11. * Consistent snapshot:if modcounts change during a traversal 12. * of segments computing size or checking containsvalue, then 13. * We might have a inconsistent view of state so (usually) 14. * Must retry. A.*/16.transient intModcount; 17. 18./*** The table is rehashed when its size exceeds this threshold. * (The value of this field was always */23.transient intthreshold; 24. 25./*** the Per-segment table. .*/28.transient volatileHashentry[] table;

, and it relies on hardware directives to ensure that this is a CAS operation (Compare and Swap). After JDK1.5, the Java program can use CAS operations only. We can further study the source code of Reentrantlock, will find that one of the more important way to get the lock is compareandsetstate, here is actually called the CPU to provide special instructions. Mod

Java Development in Linux: source code management CVS-general Linux technology-Linux programming and kernel information. For details, see the following. Source code management generally includes two aspects: sharing among multiple

(); int next = current-1; if (Compareandset (current, next)) return next; }} public final int addandget (int. delta) {for (;;) {int current = get (); int next = current + Delta; if (Compareandset (current, next)) return next; }} public String toString () {return integer.tostring (get ()); } public int Intvalue () {return get (); } public Long Longvalue () {return (long) get (); } public float Floatvalue () {return (float) get (); } p

First recognition HashMapBased on the implementation of the map interface of a hash table (that is, a hash table), this implementation provides all the optional mapping operations and allows NULL values and NULL keys to be used.HashMap inherits from Abstractmap, and realizes the map, cloneable, java.io.Serializable interface. and is not synchronized, meaning it is not thread-safe.Data structure of HashMapIn the Java

Map1. The object used to correlate key and value, where key and key cannot be duplicated.2. is an interface used to replace Dictionary abstract classes in earlier versions of Java.3. Three different views are provided to observe the internal data, the set view of key, the Collection view of value, and the set view of the associated object Key-value.4. Some implementations will guarantee the order of elements, such as TreeMap. Some are not guaranteed,

Reprint Please indicate the source: http://blog.csdn.net/ns_code/article/details/17465497 Introduction to the executor framework After Java 5, concurrent programming introduced a new stack of APIs to start, dispatch, and manage threads. The executor framework, which is introduced in Java 5, uses a thread pool mechanism

Check the java source code of the set data structure. You can see a question on the Internet: A set of strings. The format is as follows:. Merging a set whose intersection is not empty requires that there be no intersection between the merged sets. For example, the preceding example should be output. (1) Describe your solution to this problem; (2) provides the

Java programming example of recursive and non-recursive code with two distributions, two Recursion The main content of this article is recursive and non-Recursive Implementation of the binary distribution of Java programming. Source