: (mfmailcomposeresult) result Error: (nserror *) error{//close Mail Interface [controller Dismissviewcontrolleranimated:yes completion:nil ]; if (Result = = mfmailcomposeresultcancelled) {nslog (@ "Cancel Send" ); } else if (result = = Mfmailcomposeresultsent) { nslog (@ "already issued" ); } else {nslog (@); }}Open Other Common FilesIf you want to open some common files, such as HTML, TXT, PDF, PPT, etc., you can use UIWebView openJust tell the URL of the UIWebView fi
Learn android from scratch (BroadCast. 45 .)
Similar to Service, there is also one of the four main components running in the background in android, which is broadCcast, but he does not need to consider whether there are accepted objects, just consider sending.
We can use either of the following methods to use BroadCast:
1. Configure broadCcast in the configuration file.
Second, bind broadCcast to the class file.
Next we will explain it separately.
as follows:1 The HttpSession object is passivated to a GaCl folder on the local hard disk after 1 minutes of configuration in the Context.xml file fileThe JSP test code is as follows:1 Access to this JSP page, the server will immediately create a HttpSession object, and then implement the Httpsessionactivationlistener interface JavaBean Object Bound to the Session object, the JSP page after waiting for 1 minutes no one again access, then the server will automatically passivation (serialization)
, enabling efficient reading of characters, arrays, and rows. You can specify a slowThe size of the flush area, or the default size can be used. In most cases, the default value is large enough.Bufferedwriter/printwriter class----> Write a line BufferedWriter class writes text to the character output stream, buffering individual characters, enabling efficient reading of characters, arrays, and rows. The PrintWriter class prints a formatted representation of the object to the text output stream
Java Study Notes 45 (multithreading 2: security issues and solutions), java Study Notes
Thread security issues and solutions:
Security issues occur when multiple threads use one shared data.
A classic case:
Tickets are sold in cinemas, with a total of 100 seats and a maximum of 100 tickets. There are many ways to buy tickets, such as online purchase, self-owned ticket vending machine, and queuing purchase.
When you operate the same shared data in thr
The action of Photoshop increases efficiency by automating designers and photographers. There are countless actions available for free download. we have selected 45 action photos to process personalized images. Photoshop Action 15
Foliage
Action Pack 2
Photoshop Actions 11
Polaroid Generator 2
Fearless Action
Photoshop Color Actions 2
Photo Coloring 11.2
Black and White Sepia Action
Blue Action
Diabolic
Cross Processing
300 Ac
This article mainly introduces 45 JavaScript programming notes and tips. in this article, I will share some JavaScript skills, tips, and best practices, except for a few, both the browser's JavaScript engine and the server-side JavaScript interpreter are applicable. if you need JavaScript, refer to JavaScript as a global programming language, it can be used for Web development, mobile application development (PhoneGap, Appcelerator), and server-side d
the contact shape of "first touch"/"then disconnected" can provide an independent Arc area and is completely isolated from the coupling interface area on the connector and outlet contact,
Optimal reliability for simultaneous power and Data Transmission
5. There is a modular socket Core Component suitable for all requirements of copper cabling connections, such as integrated flat/diagonal ports, or Keystone and full color jumpers)
Electrical Enhancement
Eliminate the variability of RJ-
later. The firewall also disconnects after a period of inactivity.
To prevent timeout, you may need to send an empty message intermittently to the server. To do this, you can add the following two functions in your code: one to maintain the connection and the other to cancel the connection. With this technique, you can control timeout issues.
Use a timerID:Copy codeCode: var timerID = 0;Function keepAlive (){Var timeout = 15000;If (webSocket. readyState = webSocket. OPEN ){WebSocket. send ('');
#include #include using namespace Std;int main (){int N;int S, I, J;int Squa;cin>>n;Squa = N*n;/* Allocates space for pointers to int type pointers,This pointer points to n int pointer */int **a = (int * *) malloc (n sizeof (int));if (a = = NULL)return 0;for (i = 0; i {if ((a[i] = (int *) malloc (n*sizeof (int))) = = NULL){/* Assigns a value to each value (int pointer) of the preceding pointer so that it points to an intArray, if the allocation fails, the release is placed on itSpace to apply fo
random data in Oracle
Every developer wants to easily generate a pile of random data to test how good the database is. The following query statement can satisfy your needs. It can generate random data in Oracle and insert it into the table. For more information, see Random Data in Oracle
Copy codeThe Code is as follows:
Select level empl_id,
MOD (ROWNUM, 50000) dept_id,
TRUNC (DBMS_RANDOM.VALUE (1000,500 000), 2) salary,
DECODE (ROUND (DBMS_RANDOM.VALUE (1, 2), 1, 'M', 2, 'F') gender,
TO_DATE (
Weak_ptrs ", and all assignment operations from the above (except weak_ptr), are excerpted from an excerpt from the TR1 specification for TR1::SHARED_PTR:Templateclassshared_ptr{ Public: TemplateclassY>//class and TypeName mean the same when declaring type parametersExplict shared_ptr (y*p); TemplateclassY>shared_ptr (shared_ptrConstR); TemplateclassY>explict shared_ptr (weak_ptrConstR); TemplateclassY>explict shared_ptr (auto_ptrConstR); TemplateclassY>shared_ptroperator= (shared_ptrConstR); T
ControllersV: Views ViewM: ModelCompiling cache files ~runtime.phpis the TP framework for performance considerations, the system needs to load a lot of files are compiled into a file inside, this file is ~runtime.php, so that the system saves a lot of file open, shutdown overhead.Code tracking:1. index.php Entrance2. thinkphp.php3. thinkphp/common/runtime.php4. Think::start (); thinkphp/lib/core/think.class.phpL Think::buildapp ()L App::run () thinkphp/lib/core/app.class.php5 App::run ()L app::
keyword, but which is used to see if the method is overridden in a subclass. Class-Modified static methods can be overridden, and the static keyword cannot be overridden.The sample code is as follows:classAccount {varOwner:string ="Tony" //Account name//cannot be replaced by static classFunc Interestby (amount:double), Double {//Static Methods return 0.08886*Amount}}classTermaccount:account {//Recurring Accounts//can be replaced by static Override classFunc Interestby (amount:d
The polymorphism under the interface relationship is almost the same as that in the inheritance relationship, it should be simpler ~Polymorphic: The reference-type variable of the parent class refers to the object of the subclass, or the reference-type variable of the interface type that points to the object of the interface implementation class.To implement polymorphism under a relationship:Interface variable = new interface implements the object of the class.The package day09;interface dao{ /
1. First look at the case code as follows:1 Packagecn.itcast_07;2 3 /*4 * Stitch the array into a string5 */6 Public classStringBufferTest2 {7 Public Static voidMain (string[] args) {8 //define an array9 int[] arr = {44, 33, 55, 11, 22 };Ten One //Defining features A //Mode 1: Use String to stitch the way -String S1 =arraytostring (arr); -System.out.println ("S1:" +s1); the - //Way 2: Use StringBuffer to do the stitching way -String s2 =arrayToSt
Share 45 Android Instances source code, very good very strongHttp://www.apkbus.com/android-20978-1-1.htmlAndriod Alarm Clock Source codeHttp://www.apkbus.com/android-20974-1-1.htmlAndroid source code sharing of the Compass programHttp://www.apkbus.com/android-20973-1-1.htmlTest program for Gravity sensing Andriod source codeHttp://www.apkbus.com/android-20972-1-1.htmlAndroid source sharing time log personal schedule managementHttp://www.apkbus.com/and
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