A Sampling of Methods De ned by List<T> in c sharp

Implementation QR Code in c sharp A Sampling of Methods De ned by List<T>

The conditional expression does not have to involve testing the loop control variable against some target value. In fact, the condition may be any relational or logical statement. This means that you can test for several possible terminating conditions. For example, you could use the following function to log a user onto a remote system. The user has three tries to enter the password. The loop terminates when the three tries are used up, or when the user enters the correct password.

FIGURE 26-9

class MyClass : IMyIF { int IMyIF.MyMeth(int x) { return x / 3; } }

1. Choose a location that will represent the ideal temperature of your home. For example, stay away from locations that are prone to drafts, near doors, near windows, or where direct sunlight will hit the WDU.

might be significant. To address these concerns, C# offers the structure. A structure is similar to a class, but is a value type, rather than a reference type. Structures are declared using the keyword struct and are syntactically similar to classes. Here is the general form of a struct: struct name : interfaces { // member declarations } The name of the structure is specified by name. Structures cannot inherit other structures or classes, or be used as a base for other structures or classes. However, a structure can implement one or more interfaces. These are specified after the structure name using a comma-separated list. Like classes, structure members include methods, fields, indexers, properties, operator methods, and events. Structures can also define constructors, but not destructors. However, you cannot define a default (parameterless) constructor for a structure. The reason for this is that a default constructor is automatically defined for all structures and this default constructor can t be changed. A structure object can be created using new in the same way as a class object, but it is not required. When new is used, the specified constructor is called. When new is not used, the object is still created, but it is not initialized. Thus, you will need to perform any initialization manually. Here is an example that uses a structure:

The quality or Q-factor for the circuit is given by Q= L 0 = 0 R (8.25)

User throughput is the number of users that can be processed (or authenticated) per unit time for a given system. User throughput is also expressed in terms of total transaction time for a single user. This includes the time to present the biometric (acquisition time), processing time, and, optionally, might include entry of a PIN or user identifiers. The reporting should indicate minimum, maximum, and average times, and if the time includes other nonbiometric authentication chores (PINS, user identifiers, passwords, card swipes, or tokens). An example of user throughput reporting is shown in the following Table 11-1. The table format and values are from the Biometric Product Testing Final Report, done by Dr. Tony Mansfield and others (Mansfield 2001). While isolated transactions that take 15 seconds might be acceptable in some environments, this could be less than ideal for processing a large number of individuals. Understanding user throughput values in light of goals for user convenience and system loading is important. As a point of comparison, passwords take about three to five seconds to enter. Smart cards and proxy cards transactions can be accomplished in approximately one second.

No como ni frutas ni legumbres. La comida no estaba ni buena ni mala. No le gusta ni bailar ni cantar. I eat neither fruits nor vegetables. The meal was neither good nor bad.

This mode is typically used for basic troubleshooting of networking problems. You can tell that you are in User EXEC mode by examining the prompt on the left side of the screen: