fips mode

Bridge definition: The separation of abstraction and behavior, independent, but dynamic combination. Why Use Bridge mode Typically, when an abstract class or interface has more than one specific implementation (concrete subclass), these concrete relationships may have the following two kinds: 1. There is a parallel between these many concrete implementations, as in the preceding example, piling, there are two concrete class: square and round piles;

A really painful Concept From http://blog.sina.com.cn/databasegao " When preparing lessons in the morning, I found some conceptual errors in the database design overview in chapter 2 of the textbook, which reminds me, students may not be able to fully understand the concept of external mode, internal mode, and internal mode, so I want to discuss it throu

Stand-alone (non-distributed) mode This mode runs on a single machine without a distributed file system, but directly reads and writes to the local operating system's file system. Pseudo-distributed operation mode This mode also runs on a single machine, but uses different Java processes to mimic the various nodes in

Some interesting CSS questions (17th) -- incredible mixed color mode mix-blend-mode and cssmix-blend-mode Start this series and talk about some interestingCSSQuestions and question types are not empty. What to think of is not only to broaden the problem-solving ideas, but also to involve CSS details that are easy to ignore. Compatibility is not taken into conside

Simple Factory pattern is the innovative model of the class, also called the Static Factory method pattern, which is responsible for creating instances of other classes by specifically defining a class that is instances that are created typically have a common parent class (or parent interface).UML diagram for simple Factory mode:(1) Abstract product role: The parent class of all objects created by the simple factory pattern, note that the parent clas

Memento definition: Memento is an object that holds a copy of the internal state of another object, so that the object can later be restored to its previously saved state. Memento mode is relatively good understanding, we look at the following code: Copy Code code as follows: public class Originator { private int number; Private file File = null; Public originator () {} Create a memento Public Memento Getmemento () { Return

About Design PatternsLet's talk about design patterns first. Many people feel that the "design pattern" is very iffy, Gof gang's "Designing Patterns" as a programming Bible, but I think it is not necessary. Design pattern plainly, is in a specific environment to solve a certain kind of common problems of a routine, according to this routine to do will be very handy. However, this does not mean that these design patterns are set on the universal, not to say that the set of design patterns to do t

In Template method mode (Templatemethod pattern), an abstract class exposes the way/template that defines the method in which it is executed. Its subclasses can override the method implementation as needed, but the invocation will be done in the way defined in the abstract class. This type of design pattern belongs to the behavioral pattern. The definition of geoscience in the design pattern is: Template method pattern: Defines the skeleton of an algo

manage these communication ports to avoid a single communication port being invoked simultaneously by two requests. In short, the choice of single case mode is to avoid inconsistent state, to avoid the administration of the Bulls. One, lazy type single case[Java]View Plain copy print? Lazy Singleton class. Instantiate yourself public class Singleton {private Singleton () {} private static Singleton Single=nul on the first call L Static Factory method

equ Labe L_DESC_CODE16-LABEL_GDT selectordata equ label_desc_data-label_gdt selectorstack equ LABEL_DESC_STACK-LABEL_GDT S Electortest equ Label_desc_test-label_gdt selectorvideo equ Label_desc_video-label_gdt; END of [section. GDT] [section. data1]; Data section ALIGN [BITS] label_data:spvalueinrealmode DW 0; String Pmmessage:db "in Protect Mode now. ^-^ ", 0; This string is displayed after entering protected mo