neo4j demo

Dead lockOnly when the T1 thread occupies O1 and exactly also needs to o2,t2 at this time to occupy O2 and exactly also need O1 when the deadlock will appear, (similar to 2 people with two chopsticks to eat, all need each other's chopsticks to eat)The following code T1 thread occupies O1, and gets to O2 object before releasing O1, and T2 thread takes O2 again to get O1, while O1 is occupied by T1 thread, O2 is occupied by T2 thread, T1 and T2 are waiting indefinitely, there will be deadlock. Pac

Jquery.callbacks was added after the 1.7 version of jquery, which was extracted from the _deferred object in version 1.6, and is used primarily for functions such as add, remove, fire, lock, and so on, and provides once, memory, Unique, stoponfalse four option for some special controls, this is the official document of jquery: http://api.jquery.com/jQuery.Callbacks/The common application scenario for this function is the event triggering mechanism, which is the observer in the design pattern (pu

In the previous update of the new version of QQ, login background and is not the same as before, is a group of flashing background, the effect is very good. Effect Demo Source Download The change effect needs to introduce three JS files: Add the following div and run it. The above is this article to share the QQ login background flashing effect with the effect of demo source downlo

Drop-down refreshes are used in more and more apps, and have formed a default user habit that encounters a list of displayed content when users have begun to habitual Lala. In the interaction of the habit has formed a qualitative. Before in my article "iOS Learning Notes 34-egotableviewpullrefresh implementation dropdown Refresh" described how to implement the dropdown on iOS features. Today, the main introduction of the implementation of the next pull on the Android

In this demo, we implement the functionality of this Repeater control data export Excel.we prepare an object : Copy Code code as follows: Imports Microsoft.VisualBasic Namespace insus.net Public Class Catalog Private _id as Integer Private _name as String Public Property ID as Integer Get return _id End Get Set (value as Integer) _id = value End Set End Property Public Property Name as String Get return _na

The code download address has been updated. Because the code is not updated for a long time, has been very outdated, we recommend the use of Recyclerview implementation. Reference items: Https://github.com/bingoogolapple/BGARefreshLayout-Android Https://github.com/baoyongzhang/android-PullRefreshLayout Drop-down refresh, a very common feature of Android. In order to facilitate the rewrite of the ListView to achieve Drop-down refresh, while adding a pull to automatically load more features. O

This article describes the Android programming implementation of hand-painted and saved as a picture of the method. Share to everyone for your reference, specific as follows: Run Effect Chart preview: Should be yzuo_08 required to do this demo, with the previous tablet demo is different from the canvas can be saved as a picture of the content. Attach Key code: Mainview.java Package com.tszy.views

write the cause of this demo Intent to write a flappybird, want to get flappybird of the picture resources, decompile apk later found that its pictures have been integrated into a large picture, as follows Atlas.png Another found a corresponding atlas.txt file, such as the figure After the study found that the first column as a small picture file name, the 23rd column of the picture width high, the 45th column in the original image of the x,y coor

Blocking is a common scenario for DBAs, especially where poor application design blocking can cause severe performance degradation until the database crashes. For DBAs, it is necessary to know how to navigate to what is blocking the current system, who is the blocking, and who is the blocked. This paper gives a description of this and the related demo. 1. Blocking and its type A, what is blockingA session holds a lock on a resource, and another sess

ListView control is quite complex, but also in the project should be regarded as more commonly used, so wrote a small demo to say, mainly the use of custom adapter, added a lot of judgment and so on ... let's look at the effect of the implementation! OK, let's create a new project Lvcheckbox We first write these two layouts well, one is the main layout, there is a ListView item.xml, I believe not to say more Activity_main.xml Item.xml

This article illustrates the Android implementation of the Taobao shopping cart to increase and reduce the number of merchandise functions. Share to everyone for your reference, specific as follows: In a previous example of Android's imitation Taobao shopping cart demo, small part of the simple introduction of how to use ListView to implement the shopping cart, but simply to achieve the function of the list, along with a new problem, when buying good

This article illustrates the full implementation techniques of jquery Custom animation functions. Share to everyone for your reference, specific as follows: The screenshot of the running effect is as follows: The online demo address is as follows: http://demo.jb51.net/js/2015/jquery-zdy-dh-move-style-demo/ The specific code is as follows: Full instance code click here to download the site.

trouble to users-users are not clear whether the current data is new or have been updated; the existing solutions are: in the relevant location hints, data updates of the area design more obvious, the data updated to user prompts, etc.; 4, the streaming media support no flash, Java applet good; The conclusion of better AJAX applications, the need for more client development, and the current Web application concept of thinking, and a good user experience, from the user to consider the concept, r

/core:tensorflow ", ], Under the current Tensorflow/build directory to perform Bazel build:libtensorflow.so, the operation effect is as follows: Compile time about 2000 seconds, look at the computer performance, this compilation uses dual core four threads, 4GB memory.When the execution is complete, the following directories are generated in the directory where the workspace file resides: Bazel-bin, Bazel-genfiles,bazel-out, Bazel-tensorflow-master, and Bazel-testlogs. Enter the Bazel-out/l

to call the system via intent mail program, this is not practical for our background operation.Activation.jarAdditionnal.jarMail.jarBelow I demo example inside will enclose these three packages, these several packs on-line also many resources, may download by oneself. 2, Mail informationBecause we are sending mail in the background, we need to collect some necessary information because the user is not required to enter this information. Copy C

This is my first blog, in reference to other people's blog to install the process, for my platform system, encountered a lot of problems, here to write my practice and the problems encountered.For the reference to the blogger's article, here to express thanks.For this blog, if there is bad writing or wrong place, because my level is limited, as well as the limitations of the problems encountered, can not be taken into account, please give understanding, and hope to get good suggestions, for good

access| Program | create | data | database | compress * -------------------------------------------- * Program: Create, Compress Access database and modify password demo * Design: Red rain * -------------------------------------------- Local Lcmdbfile, Lcretustr Lcmdbfile = [C:\Temp\TestCreaMdbFile.mdb] LCPSWD1 = [Test1] LCPSWD2 = [Test2] LCPSWD3 = [Test3] LCRETUSTR = [Create, compress Access database and modify password

, 31]; The default number of days for each month from January to December, and of course the 29 days of February leap years will be judged in the code. 3. Render the year interval, the month interval, and the corresponding number of days respectively. (if there is a default date and the default date is greater than or equal to the start date and less than or equal to the end date), the default date is displayed when the page loads. 4. Bind change events When you switch to different years, the

with the embedded scripting language Lua JavaScript, I have explained in detail how to implement Silverlight programs interacting with JavaScript scripts. So, first of all, we need to add a JavaScript script file in the Dream West Tour demo source, and call the script in the Index.htm page with the game demo embedded: Next, we also add some of the wizard's own methods in the program to invoke the objec

is based on the Qxsceneeditor (silverlight-2d game scene editor) modified the first Demo: three national policy. Three national policy game type for SRPG (Strategy role play), the whole game is divided into two parts: RPG and SLG. Therefore, the game contains a similar RPG game in the role of the scene, at the same time, once the battle begins, the screen will be switched to the round of the system war game layout scene. Friends who have played the