xlsx viewer

Interfacewatcher{voidUpdate (String message);/*** Specific Theme characters *@authorHyp **/ Public classConcreteSubjectImplementssubject{PrivatelistNewArraylist(); @Override Public voidAddwatcher (Watcher Watcher) {Watchers.add (watcher); } @Override Public voidRemovewatcher (Watcher Watcher) {watchers.remove (watcher); } @Override Public voidNotify (String message) { for(Watcher W:watchers) {w.update (message); } }}/*** Specific Viewer orange *@a

This article refers to the head first design model book, the feeling of the book is very good example, very appropriate.The knowledge point of the model is summarized, and the source of the book has made a certain comment. The observer pattern has two main points: the subject and the viewer. The most appropriate case is: Magazine subscription, magazine is the subject, the observer is the Subscriber. This event automatically notifies all subscribers wh

Photo Viewer , GitHub address: Https://github.com/VaJoy/imgViewerThe effect is as follows:It was written for about 2 hours and rushed out in a hurry, using an interface that was simple:$.bindviewer (". Viewer-item");Its implementation is not a complex principle, the only thing that can be said is the picture unfolding process-from small to large dynamic process realization. This is mainly achieved by this s

We will introduce you to this article PHP GTK Write Text Viewer code example: ? PHP Require_once (' file.php '); if (!class_exists (' GTK ')) { if (Strtoupper (substr (php_os, 0,3) = = ' WIN ')) DL (' Php_gtk.dll '); Else DL (' php_gtk.so '); 10} function Delete_event () { return false; } function shutdown () { Print ("shutting down"); Gtk::main_quit (); } function buttonload_clicked () { Selectfile (); }

# # # #观察者模式 * Designed to let an object track a state, know how the state changes, once the state changes, all subscribed objects can be notified # # #使用SPL实现观察者模式 * Splsubject interface has three abstract methods attach (), Detach (), notify () These methods do not return any results * Splobserver interface has a method update () it will get the latest state of the subject state and hand it to the Observer instance * Splobjectstorage Class is described as a mapping from an object to a set of d

Cssviewer Installing the Cssviewer plugin in Google Chrome and launching the CSS Viewer function in the browser's extender, the Cssviewer plugin can be found at the bottom of this article, and the offline Cssviewer plugin installation method can be consulted: How do I install an offline chrome plugin for the. crx extension in Google Chrome? The latest Google browser offline installation version can be downloaded from here: http://chromecj.co

One. Observer mode: (1). Observer pattern Definition: defines a one-to-many dependency that allows multiple observers to listen to a Principal object. When the Subject object changes, all the observer objects are notified, allowing them to update themselves automatically. (2). The composition of the Observer pattern:a). Specific topic role: Notifies all registered observers when changes occur within a specific subject role. (typically implemented with a class)b). Abstract theme Role: Save refe

This viewer is called: SQLite Database Browser 2.0 This viewer can create a new SQLite file database, you can create table indexes, write SQL statements, edit table data However, the SQLite database engine version supported by this viewer is a bit lower, so how do you use SQLite DB Browser 2.0 first? Main interface You can drag the SQLite db file

{Defines an array of observersPrivate $observers =Array ();Adding observer methodsPublicfunctionAddobserver(Observer $observer) {$this->observers[] = $observer;Echo"Add observer Success". Php_eol; }Remove Observer methodPublicfunctionDelobserver(Observer $observer) {$key = Array_search ($observer,$this->observers);Determine if there is a presence of the observerif ($observer = = =$this->observers[$key]) {Although the values are the same but may not be the same object, use congruent judgmentunset

1. When you create a Web site using ArcIMS Designer, the HTML viewer,arcims for this site is automatically generated designer the site is generated in POSR installation defined Website DirectoryThe question is whether the JSP application server and the ArcIMS server can be placed on two servers respectively. 2. The reason for choosing HTML Viewer is that users do not need to add data to the map themselves,

With the popularization of Win8 and win8.1 upgrade, the WIN8 system has gradually become the mainstream of computer systems, but small series found their own computer win8 with photo Viewer back color yellow very serious ... Thought is the win8 problem, the result discovers also is Win8 's small partner's is not a problem. Then a small search of the next Win8 Photo Viewer yellow This problem seems very comm

1, in the computer desktop space we right-click, in the pop-up menu click "Display Settings" the following figure: 2, and then in the Open Settings window we click on the "left default" and then on the right we can for calendar, email, map, music player, photo Viewer, video player, web browser, etc. to choose the default application, the specific details apply as shown in the following figure: 3, Windows 10 default picture

1,vnc Viewer black screen problem:2, maybe the desktop component under CentOS is not installed.Yum Groupinstall "X windowsystem" "KDE Desktop" desktop-yyumgroupinstall-y "desktop" "Desktopplatform" "Desktop Platform Development"　"Fonts" "General Purpose Desktop" "Graphical administration Tools" "Graphics Creation Tools" "Inputmethods" "X Window System" " Chinese support [zh] "Internetbrowser"3,Install the desktop environment software, and then modify

The new activi not found in the old version of the activitirestapplication provided in the introduction (at least I did not find), so directly from the SPRINGMVC for the Diagram Viewer to provide services, but also good to understand diagram How the viewer works.First, download the corresponding version in the http://www.activiti.org/ In the official ZIP file (available from www.activiti.org/download.html

I downloaded the RealVNC Viewer from https://www.realvnc.com/download/viewer/to access the remote Linux desktop, this version does not need to be installed, directly run on it. But when I visit the remote table, I have to enter the user name and password every time, very troublesome. Here's how to access Remote Desktop without entering a user name and password.1. Run RealVNC

I am using the putty and Ssl/ssh Vnc Viewer. Because just into the pit, also hope that small white can less detours, so this paste is relatively thin.First of all, the difference between VNC server and VNC Viewer: Server for the server, is controlled by the remote host, (this article does not specifically describe how to use the server), and the viewer for the cl

Some win8.1 users in the right click to open the image you want to browse, found in the pop-up menu opened the way there are two photo viewer, this is how to avoid the photo viewer to repeat, please see this article describes the method. Solving method Go to c:program files or C:Program files (x86), locate the Windows Photo Viewer folder, and remove one

Win7 system is now the most customers use a system, but may be a lot of easy to open the way some netizens have not used, such as today we have to say that the Win7 System Event Viewer How to open, in fact, there are several ways, but you do not necessarily know, we will take a look at it! First, click on your own Computer menu, and then you can see that all of the programs inside have a management tool, and then click on the Admin tool, you can see

Microsoft's another free Dongdong, download no genuine verification.Word Viewer 2003 enables you to open a Word 2003 document, as well as documents created with all previous versions of Microsoft Word for Windows® and Microsoft Word for Macintosh. In addition to the Word document file (. doc), you can also open a file that is saved with the following format: Rich Text Format (. rtf)Text (. txt)Web page format (. htm,. html,. mht,. mhtml)WordPerfec

Although the. Net Micro Framework already supports file systems (FAT16/FAT32), but is not directly accessible remotely, in a sense, storage media that cannot interact with the PC is somewhat tasteless. When I was doing sideshow related development, in order to copy files to the file system, realize the Usbmassstorage function, the device when the USB drive to use, but this is equal to exclusive USB port, and the device and PC connection must also be USB, to have only serial or network port equip