module 11 the c io system

Ngày tải lên: 15/03/2014, 22:20

... Herbert Schildt Module 11 The C+ + I/O System Table of Contents CRITICAL SKILL 11. 1: Understand I/O streams 2 CRITICAL SKILL 11. 2: Know the I/O class hierarchy 3 CRITICAL SKILL 11. 3: Overload ... file functions 29 CRITICAL SKILL 11. 11: Use randon access files I/O 35 CRITICAL SKILL 11. 12: Check I/O system status 37 Since the beginning of this book you have been using the C+ + I/O system, ... ways. The first uses member functions of the ios class. The second uses a special type of function called a manipulator. We will begin by looking at formatting using the ios member functions. CRITICAL...

Ngày tải lên: 16/10/2013, 21:15

... Especially emphasize the “Designer’s Questions” and “Characteristics of a Good Interface Design” slides because they provide excellent guidance beyond the scope of the class. ! Activity 11. 1: ... During the discussion that follows the activity, create a class consensus design. ! Selecting the Client Environment This section provides an overview of the various types of client technologies ... Selection In this activity, you will facilitate a discussion that focuses on the various issues associated with selecting client-side technologies and how the user interface might be influenced...

Ngày tải lên: 22/10/2013, 16:15

... Purchasing system services. 14 Module 11: System Services Storage Location The second issue is the location where the log will be stored. The main concern in the location of a log is the ... Element Description Pattern name Authentication Problem The system must authenticate clients and check access on each method call from a client. Solution Create an Authenticator class that ... with crossing layer boundaries. 8 Module 11: System Services The Authentication Design Pattern +Login() +CheckAccess() Authenticator +Handle() Resource -Token Client The Authentication...

Ngày tải lên: 11/12/2013, 14:15

... one another. Exchange 2000 Conferencing Server tracks scheduled conferences and controls attendee access to conferences. For users, the benefits are single-click access to conferences and ... access to directory information. Lightweight Directory Access Protocol (LDAP) is the preferred access protocol for directory information. ! Active Directory Connector. The Active Directory ... the application logic from the client accessing the data means that you do not have to rewrite the code for every client that may access the data. It also ensures that the application logic...

Ngày tải lên: 11/12/2013, 14:15

... the ADO object model are the Connection object, the Command object, and the Recordset object. Connection Object The Connection object is the highest-level object in the ADO object model. It ... occurs through the Connection object after a provider error occurs. When data exists in the Recordset object, you can access the Fields collection and Field object through the Recordset object. ... Collection (Optional) Execute Method Execute Method Active Connection Property Source Property Errors Collection (Optional) Fields Collection Parameters Collection Command (Optional) ADO objects provide...

Ngày tải lên: 21/12/2013, 06:15

Ngày tải lên: 29/12/2013, 11:17

... rào c n. Một rào c n bu c tất c c c quy trình để chờ đợi cho đến khi tất c c c quá trình đạt đến ngưỡng và sau đó phát hành tất c c c quá trình. Một th c hiện điển hình c a một rào c n c ... Nó c thể sau đó, ho c cập nhật c c biến khóa trong bộ nhớ cache c a bộ xử lý đư c lựa chọn ho c vô hiệu sao chép, gây ra c c bộ vi xử lý bỏ lỡ và lấy một bản sao c a khóa. Khóa xếp hàng c ... nguyên tử, chúng ta c thể sử dụng c c cơ chế đa gắn kết để th c hiện c c ổ khóa quay: ổ khóa mà một bộ xử lý liên t c cố gắng để c đư c, quay xung quanh một vòng lặp cho đến khi nó thành c ng Nếu...

Ngày tải lên: 07/01/2014, 10:45

... selected, the navigation routines process that user action. A user action to one control might also affect other controls. For example, if a user selects a check box, other options might become ... Specialized Clients In this section In this section The final part of designing the user interface is selecting the client for the application. At one time, long ago, the only choice for ... interface, of the elements of the interface, and of the system action. These cues could be implemented in three ways. Visual cues include progress bars and the Windows hourglass; audio cues include...

Ngày tải lên: 17/01/2014, 09:20

... The Authenticator class also has a CheckAccess method. Each time the client calls a method on a system object (here called a resource), the client passes its token to the object. The object ... to: ! Describe the logical design of a system services layer. ! Describe the functionality of authentication. ! Describe the functionality of a search. ! Describe the functionality of ... service or system infrastructure functionality. Typically, any layer in the architecture can use the system services layer. Examples of system services include page caching, auditing, and searching....

Ngày tải lên: 24/01/2014, 10:20

Ngày tải lên: 06/03/2014, 09:22

Ngày tải lên: 18/06/2014, 17:20

Ngày tải lên: 19/06/2014, 17:20

Ngày tải lên: 19/06/2014, 17:20

... the same. But there are situations where one or the other is specifically called for. For instance, consider the function squeeze(s ,c) , which removes all occurrences of the character c from the ... no copying of array elements. By subscripting this value, the function can access and alter any argument of the array. This is the topic of the next section. 1.9 Character Arrays The most common ... A character constant is an integer, written as one character within single quotes, such as 'x'. The value of a character constant is the numeric value of the character in the machine's character...

Ngày tải lên: 16/08/2012, 11:09