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This syntax certainly makes the code more readable, and, of course, the intermediate language (IL) generated is identical no matter which syntax is used. Any data types the compiler directly supports are called primitive types. Primitive types map directly to types existing in the .NET Framework Class Library (FCL). For example, in C#, an int maps directly to the System.Int32 type. Because of this, the following four lines of code all compile correctly and produce the exact same IL:

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Dec 25, 2019 · Step 1 Open Paytm app. Step 2 Tap on 'scan' to open the QR code scanner. Step 3 Hold ...Duration: 1:02 Posted: Dec 25, 2019

the given instance is this would require a database hit, which you try to avoid with lazy loading in the first place. To perform a proxy-safe typecast, use load():

It s important to understand the purpose of the BaseBean before we look into the ActionContext and the BeanAction. The BaseBean extends ValidatorActionForm to allow for standard Struts validation to occur. Instead of extending an ActionForm directly, you extend the BaseBean. The BaseBean contains your normal properties, as an ActionForm normally would. Thus, it is populated as Struts would populate the ActionForm because it is an ActionForm. The only difference is that your extended BaseBean would also contain behavior methods that follow the simplified signature of public String methodName().

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of maintaining state between the tiers of your application can be much higher, as you may be passing large amounts of data (sometimes referred to as data sets) between them. Thus, ADO.NET offers a disconnected model that enables you to access data from another tier, disconnect from that tier (thus breaking state), and access that data locally. To prevent data from being corrupted, ADO.NET provides the means for syncing back up with the data store when your transaction is complete, as well as locking mechanisms to prevent other processes from affecting the data while your application is holding it in a disconnected state. At the heart of the disconnected model is XML. ADO.NET was designed with the XML classes of the .NET Framework in mind, and at the core of this is the DataSet object, which you ll undoubtedly encounter if you continue writing ADO.NET-based applications. (It s also used under the covers when controls are automatically bound to a database, although that s not obvious at a casual glance.)

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In this chapter, I will introduce information that is fundamental to working with types and the common language runtime (CLR) . In particular, I ll discuss the minimum set of behaviors that you can expect every type to have . I ll also describe type safety, namespaces, assemblies, and the various ways you can cast objects from one type to another . Finally, I ll conclude this chapter with an explanation of how types, objects, thread stacks, and the managed heap all relate to one another at runtime .

class Subject { Dictionary <string,Callback> Notify = new Dictionary <string,Callback> ( ); Simulator simulator = new Simulator( ); const int speed = 4000; public void Go( ) { new Thread(new ThreadStart(Run)).Start( ); } void Run ( ) { foreach (Blogs blog in simulator) { Register(blog.Name); // if necessary Notify[blog.Name](blog); // publish changes Thread.Sleep(speed); // milliseconds } } // Adds to the blogger list if unknown void Register (string blogger) { if (!Notify.ContainsKey(blogger)) { Notify[blogger] = delegate {}; } } public void Attach(string blogger, Callback Update) { Register(blogger); Notify[blogger] += Update; } public void Detach(string blogger, Callback Update) { // Possible problem here Notify[blogger] -= Update; } } class Interact : Form { public TextBox wall ;

A. Incorrect: You need to capture the request for the custom MIME type within your applica-

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