what you need to know to write great code

write great code volume 1

... www.it-ebooks.info WHAT YOU NEED TO KNOW TO WRITE GREAT CODE Write Great Code will teach you how to write code you can be proud of, code that will impress other programmers, code that will satisfy customers ... how to efficiently test your applications without all the drudgery engineers normally associate with this task 1.2 What This Volume Covers In order to write great code, you need to know how to write ... programmers 1.1 The Write Great Code Series Write Great Code: Understanding the Machine is the first of four volumes in the Write Great Code series Writing great code requires a combination of knowledge,...

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The Duality of Memory and Communication in the Implementation of a Multiprocessor Operating System

Danh mục: Hệ điều hành

... is inserted into the (top-level) task The choice to prevent writing is made here to simplify the example It may be more practical to allow the first client write access, and then to revoke it ... reader into a writer and invalidates all other page caches A subsequent attempt to read by another workstation will cause the writer to revert to reader status (at least until the next write is ... objects to provide backing storage for zero-filled memory created by vm_allocate4 The kernel allocates a port to represent this memory object, and passes it to a default pager task, that is known to...

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Expanding Memory and I-O

Danh mục: Kỹ thuật lập trình

... connected to the corresponding address pins of the CPU (A0 to A0, A1 to A1, etc.) from A0 to A18 The memory data pins are connected to the corresponding data pins of the CPU (I/O0 to D8, I/O1 to D9, ... to a CPU Although you only need take read timings into account for connecting to an EPROM, both read and write timings must be matched for a RAM Since there is no specific address for a RAM to ... (I/O0 to D8, I/O1 to D9, etc.) from I/O0 to I/O7, to D8 to D15 Address-decoded signals are input to the memory CE pin RD signals of the CPU are input to the memory OE pin When the CPU is in read...

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Brain Games Memory and Deduction

Danh mục: Kỹ thuật lập trình

... meaning that you can add new properties to them whenever you want, and also these properties can be of any variable type You don’t need to declare variables inside an Object; you just need to assign ... probably not done with changes to the code, but changes to the graphics Why the lights need to be in a straight line? Why they need to all look the same? Why they need to be lights at all? Imagine ... section use arrays to turn a single data item into a list if data items Data Objects Arrays are great for storing lists of single values But what if you want to group some values together? Suppose...

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Advanced Types, Polymorphism, and Accessors

Danh mục: Kỹ thuật lập trình

... System.Console.WriteLine(c.ToString()); c.Count = 4; System.Console.WriteLine(c.ToString()); c = new BoundedCounter(5); System.Console.WriteLine(c.ToString()); c.Count = 6; System.Console.WriteLine(c.ToString()); ... here: You You You You You are buying for $100.00 save $0.00 save $10.00 save $20.00 save $50.00 In C#, more than one delegate can be subscribed in reaction to a single callback But in order to so, ... no reference to any concrete class type, such as Counter and BoundedCounter There is simply no need to know which objects of what class make up the array counters Hence, it is easy to add new concrete...

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Fiber Cable Assemblies and Accessories Patch Cords, IFC Assemblies, Attenuators, FasTerm® Connectors and Adapters

Danh mục: Phần cứng

... Guide Length to 15 m +15 m Length to 15 m +15 m Tolerance +16 cm/-0 cm +1%/-0 cm Stranded Length to 15 m +15 m Tolerance +16 cm/-0 cm +1%/-0 cm Ribbon Length to 20 m +20 m Assembly Length Tolerance ... (return loss) greater than 65 dB Color Coded Cable Cable having color coded insulation on the conductors to aid identification Connector Attenuation The decrease of power from one point to another ... SC connector FTC-SCS111 FC connector FTC-FCS111 FasTerm Connector * Includes strain relief boots Tool Kit Ordering Information Description Catalog Number FasTerm tool kit Multimode tool kit FTC-KIT001...

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MUSA-Series Video Patching Solution Coaxial Video Panels, Jacks and Accessories

Danh mục: Chứng chỉ quốc tế

... center conductor prevents damage and intermitance from misaligned male pins • Precision-molded insulators for truer impedance match and greater unit -to- unit consistency compared to machined Teflon® ... Gbit/s) • Precision-molded insulators for truer impedance match and greater unit -to- unit consistency compared to machined plastic • Unique closed-entry center conductor prevents damage and intermitance ... ENVIRONMENTAL Operating Temp: Storage Temp: Thermal Shock: Humidity: Salt Spray: Moisture Resistance: -40°C to 65°C -55°C to 85°C Per MIL-STD-202, Method 107 0% to 95% non-condensing, operating...

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Tài liệu Data Management and Access Products ppt

Danh mục: Cơ sở dữ liệu

... access to the circuit and two rear connectors for attachment to data terminating and/or communication devices Insertion of a patch cord into the monitor jack allows the circuit to be monitored ... hard-contact access to any multiconductor data circuit for the analysis and restoral of circuit operation • Capability to tailor alarm monitoring conditions instantly to changing needs without module ... Introduction What type of interface you need for patching? EIA-530 EIA-232/V.24 V.35 EIA-422/V.11 (x.27) If you need manual network control capabilities, use this decision tree to guide you through...

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Tài liệu Fiber Cable Assemblies and Accessories docx

Danh mục: Phần cứng

... ADC’s full line of attenuators is manufactured to meet the demands of your network In-line attenuators are installed between an adapter and a connector; they are fused attenuators, providing exceptional ... connector and the SC connector styles Angled polish should be used in applications that require better control of return loss ADC has tight tolerances regarding the rotation of the ferrule to maintain ... +1-952-938-8080 • 1-800-366-3891 84 Attenuators In-Line Attenuators A fiber optic attenuator is an optical device that induces a calibrated fixed loss between two connectors, which dampens, or attenuates...

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Tài liệu Termination and Access Products doc

Danh mục: Phần cứng

... 50-pin connectors Plug connector C-0103M-901 Receptacle connector C-0103F-901 x 25 pin pattern Horizontal wiring pattern; (4) 50-pin connectors Plug connector C-0104M-900 Receptacle connector C-0104F-900 ... TABLE TO PLUG CONNECTOR PIN T1 26 REPEATED CKT DEM R CKT T T1 DEM TO PLUG CONNECTOR R1 T CKT 24 R DEM T1 T CKT CKT 24 EQ OUT DEM R REPEATED CKT EQ OUT CKT 24 R1 49 REPEATED 24 R1 TO REC CONNECTOR ... OUT EQ OUT MON MON MON R T R T T R T R MON CONNECTION TABLE TO PLUG CONNECTOR PIN CONNECTIONTO REC CONNECTOR TABLE T1 TO PLUG CONNECTOR CKT DEM R1 T1 CKT DEM REPEATED R1 26 PIN CKT 24 CKT 24 CKT...

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Tài liệu Microsoft Excel and Access Integration with Office 2007 P2 doc

Danh mục: Tin học văn phòng

... worksheet, but you can change the name to suit your needs At this point, you can click the Finish button to start the import Figure 1-14: Name your imported table and click the Finish button N OT E ... E It’s important to note that naming your import table the same name as an existing table in your database causes Access to give you a warning that you are about to overwrite your existing table ... source for your linked table changes, you will have to refresh your link in order to get those structural changes For example, if you were to add a column to the Location_Master Excel file, you would...

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Tài liệu Microsoft Excel and Access Integration with Office 2007 P1 docx

Danh mục: Tin học văn phòng

... Binding Late Binding Automating Excel from Access Creating Your First Excel Automation Procedure Automating Data Export to Excel Sending One Recordset to Excel Sending Two Datasets to Two Different ... Introduction president to the recent graduate new hire, has some working knowledge of Excel How many company presidents have an Access database on their laptops, or would know what to with it if they ... data into Access and is followed by tips and tricks about how to optimize your new database’s performance Differences Between Access and Excel Before you dive in to bringing Excel data into Access,...

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Tài liệu Microsoft Excel and Access Integration with Office 2007 doc

Danh mục: Tin học văn phòng

... worksheet, but you can change the name to suit your needs At this point, you can click the Finish button to start the import Figure 1-14: Name your imported table and click the Finish button N OT E ... E It’s important to note that naming your import table the same name as an existing table in your database causes Access to give you a warning that you are about to overwrite your existing table ... source for your linked table changes, you will have to refresh your link in order to get those structural changes For example, if you were to add a column to the Location_Master Excel file, you would...

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Tài liệu Module 9: Memory and Resource Management ppt

Danh mục: Quản trị mạng

... that you can use to improve the performance of your software In addition to optimizing garbage collection programmatically, you can use the Performance Monitor tool (Perfmon.exe) to tune your ... to finalize code, you may need to use explicit resource management in addition to careful design Avoid Finalization if Possible You should only implement finalization, or implement a destructor ... tasks that you need to teach this module Required Materials To teach this module, you need the Microsoft® PowerPoint® file 2349B_09.ppt Preparation Tasks To prepare for this module, you should:...

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Tài liệu Fiber Optic Cable Assemblies and Accessories pdf

Danh mục: Phần cứng

... 1.5 dB to 20 dB **1310 nm wavelength Connector #1* (Closest connector to variable attenuator) m Connector #2 mm outer diameter Total Length Other connector types are available Please contact ADC ... Length to 15 m +15 m Tolerance +16 cm/-0 cm +1%/-0 cm Length to 15 m +15 m Tolerance +16 cm/-0 cm +1%/-0 cm Stranded Length to 15 m +15 m Tolerance +16 cm/-0 cm +1%/-0 cm Ribbon Length to 20 m ... You can set your receiver signal to the exact level desired, eliminating the need to purchase a wide range of attenuators The attenuation level can be continuously adjusted from 1.5 dB to 20 dB...

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Tài liệu Termination and Access Products pdf

Danh mục: Phần cứng

... Panels BNC to wire wrap, 32 circuit, front & rear panel BAL-AFAR-32 1.6/5.6 to wire wrap, 32 circuit, front & rear panel BAL-BFAR-32 Cable Assemblies See literature #102964AE or web CTO site to configure ... product Configure -to- order Wireless Host Bays LRCS Host/Dual Bay 7’ X 23 BK WDB-LR0006 Front LRCS Host/SIM Bay 7’X23 WDB-LR0007 Web Site: www.adc.com From North America, Call Toll Free: 1-800-366-3891 ... we are continuously improving our products, ADC reserves the right to change specifications without prior notice At any time, you may verify product specifications by contacting our headquarters...

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Tài liệu Connectors and Accessories pptx

Danh mục: Phần cứng

... adaptor, no hardware F to BNC Bulkhead Feedthrough adaptor w/hardware F to F Bulkhead Feedthrough adaptor, Insulated w/hardware F to BNC Bulkhead Feedthrough adaptor, Insulated w/hardware F to ... F, and RCA Connectors Ordering Information Below is an ordering guide that will help you select the BNC, F, and RCA connectors that best meet your needs Simply select the connector type, diameter, ... connector • Long 3/8" wrench flats make for a more comfortable and easier connector to thread • Precision machined parts for greater unit to unit consistency • Exclusive molded center conductor...

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Tài liệu Practical mod_perl-CHAPTER 10:Improving Performance with Shared Memory and Proper Forking pdf

Danh mục: Kỹ thuật lập trình

... pages If you need to call a Perl program from your mod_perl code, it’s better to try to convert the program into a module and call it as a function without spawning a special process to that Of ... requests If you need the STDIN and/or STDOUT streams, you should reopen them You may need to close or reopen the STDERR file handle, too As inherited from its parent, it’s opened to append to the ... reason you would want to fork is when you need to spawn a process that will take a long time to complete So if the Apache process that spawns this new child process has to wait for it to finish, you...

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Tài liệu Credit Report Accuracy and Access to Credit pptx

Danh mục: Ngân hàng - Tín dụng

... in the individual’s credit history score To conduct this exer cise, one must know (1) the factors used to construct the score, (2) the points assigned to these factors in deriving an individual’s ... history scores, we developed a medical collection code based on an inspection of the creditor name, and we used the code to identify medical collection accounts to drop from the credit history ... items to construct an approxi mation of the proprietary credit-scoring model, employing regression techniques to estimate the points to assign to each factor We used the second and third items to...

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Tài liệu Formal and informal institutions’ lending policies and access to credit by small-scale enterprises in Kenya: An empirical assessment doc

Danh mục: Ngân hàng - Tín dụng

... According to the 1997–2002 development plan, there is need to introduce regulatory measures to check oligopolistic tendencies, which restrict entry and efficiency in the banking sector As in ... encouraged to diversify their loan portfolios so as to be able to cater for the different financial needs of SMEs FORMAL AND INFORMAL INSTITUTIONS' LENDING POLICIES 39 There is also need to expand ... on the character and history of the borrower, particularly on personal knowledge of the borrower Loan monitoring is rarely done by informal lenders due to the lenders’ knowledge of borrowers,...

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