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Experiences Teaching Data Structures With JavaAmong Computer Science educators, hardly any topic inspires more heated debate than the choice of programming language in the introductory sequence. In the late 80s, the uniformly accepted choice was Pascal, but since then, a host of alternatives have come into use. C++ seems to have emerged as the winner, while Pascal, C, Ada, Scheme, and Modula-3 split most of the remaining market.
There appear to be two overriding reasons for C++’s emergence. First, principles such as encapsulation and information hiding, that are important to teach in the CS I/II curriculum, are easily demonstrated in C++. Much of the ugliness associated with C is easily avoided in C++ by the use of a tiny set of classes: About all that is needed is a String and Vector class. Second, C++ has become an industry standard (even though C++ is itself not yet standardized). Many universities are finding that they must teach C++ at some point, and given limitations on the number of courses that can be offered, they are finding it most convenient to teach it early. C++, however, has its share of problems; some of these problems will be discussed later. Java is the new alternative to C++. It can be presented as a simpler C++ that fixes many of C++’s bad features and provides a primitive, but useful, GUI toolkit. One argument for teaching Java early is that it is better to use an alreadydefined language rather than attempt to subset a complex language. While C++ is arguably theLockr: Social Access Control for Web 2.0Sharing personal content online is surprisingly hard despite the recent emergence of a huge number of content sharing systems and sites. These systems suffer from several drawbacks: they each have a different way of providing access control which cannot be used with other systems; moving to a new system is a lengthy process and requires registration and invitation of all one’s friends to the new system; and the rules for access control are complicated and become more so as our networks of online friends grow.
In this paper, we present Lockr–an access control scheme based on social relationships that makes sharing personal content easy. Lockr separates social networking information from the content sharing mechanisms, thereby eliminating the need for users to maintain many site-specific copies of their social networks. We describe Lockr’s design, security properties, and limitations. We also present how we integrated Lockr with two popular systems for sharing content online – BitTorrent and Flickr.
Today, sharing personal content is surprisingly difficult. Current systems suffer from a number of drawbacks. They are cumbersome to use, they impose artificial limits on the size of shared content (e.g., pictures and video), and they make it difficult to restrict content only to a specific set of users. For those Web sites that do provide access control, they typically require all the participants to be registered with the site in question. This imposes the burden that users must register with many sites, and maintain separate and potentially inconsistent copies of their social networks for eachThe RFC API SAP Reference GuideRFC with External Systems In the SAP System, the ability to call remote functions is provided by the Remote Function Call (RFC) interface. This interface allows for remote calls between two SAP Systems (R/3 as of Release 2.1 and R/2 as of Release 5.0D), or between an SAP System and a non-SAP system. The present section describes how to write RFC partner programs that run in non-SAP Systems. If you are writing RFC programs in an SAP System, see RFC-Programming in ABAP [Ext.]. Client and Server Programs RFC programs for non-SAP Systems can function as either the caller or the called program in an RFC communication. There are two kinds of RFC programs: RFC client and RFC server programs: The RFC client is the instance that calls up the RFC to execute the function which is provided by an RFC server.
In the following, the functions that can be executed remotely will be called RFC functions, and the functions provided by the RFC API will be called RFC calls. How to implement external RFC programs You have two options for implementing external RFC programs:
• Use programs generated by the RFC Interface Generator (see The RFC Generator [Ext.]. These are stub programs you can install on your workstation or PC to call up SAP function modules. The RFC Interface Generator in the SAP System lets you generate the stubs and download them to your machine.
Download PDF for The RFC API SAP Reference GuideTutorial: Easy Beads in Paint Shop ProI’m using Paint Shop Pro 8, but I know this feature is still in later versions. Ever tried Balls and Bubbles? They’re fun! Here are the easiest beads (or round candies if you’re so inclined) I know how to make. Start by opening a new raster image of 100 pixels. At 200 dpi this is going to make you a half -inch bead, scale-able as are all your picture tubes. Now go to Effects, Artistic Effects, Balls and Bubbles: When the options box opens, choose the “Gold Ball” preset, and select Single Ball and Maximum possible size.
If you haven’t ever explored the Balls and Bubbles feature you’ll want to come back later and play with all the various presets and make some of your own. Now, you can keep the color or colorize the bead as you wish. I’ll show you how to save as a single tube and also a multiple tube set, so while you’re playing with the colors make about six different ones.
Download Tutorial: Easy Beads in Paint Shop ProThe Forrester Wave: Application Server PlatformsApplication server platforms are the most important category of application platform software for most enterprises. An application server platform is infrastructure software for building Web and composite applications and, increasingly, applications based on service-oriented architecture (SOA) design principles. An application server platform integrates an application server, which manages user requests, data access, and business logic, with portal servers and integration/business process management (BPM) servers — and often additional features, as well.
- App server platforms are the most strategic of all application platforms. According to data from Forrester’s Business Data Services, Microsoft’s .NET and Java/J2EE have consistently finished at the top of the list of most commonly used development platforms. .NET and Java/ J2EE are the core technologies for most application server platforms. Hot new platform options, including Ruby on Rails, Java Spring, and PHP, and new hosted platforms like salesforce.com’s Apex are simply not as important to platform buyers in our surveys yet, and older platforms like 4GLs and host platforms are in declining usage (see Figure 1).· - Application server platforms help customers consolidate to save money. Many customers turn to application server platforms and suites and dump their best-of-breed products. Why? Application server platforms offer higher volume discounts and reduced product integration costs.
- App server platforms are the base for a growing number of solutions. Buyers of many packaged business applications either use application server platforms now or soon will, adding to the importance of this category. Microsoft’s Dynamics packaged applications are based on its .NET platform. NetWeaverJetta 2005.5 6 CD Changer Instructions SpecificallyBefore starting, make sure painted and trim surfaces are protected to avoid scratching during installation process of the items. Use proper surface protection covers and work attire free of dirt and grease.
Caution: Read entire instructions thoroughly before starting. Installation should be performed only by a qualified person. Observe all safety precautions when working beneath a vehicle. Beware of sharp edges. Always wear safety glasses for eye protection.
Step#01
Place a protective drop cloth on the trunk floor and trunk sill. Remove the threaded button and push clip from the trunk liner
Button and Clip P/N:
N 095 819 01 Threaded Button 191 867 199 Push Clip
NOTE:
Key out of ignition switch and radio off.
Step#02
Use the UNIBIT to enlarge the hole in the support for the hat shelf on the drivers side to 18mm.
NOTE:
After enlarging the hole apply primer to the bare metal.
CAUTION:
Do not drill too deep. You will damage interior trim parts
Step#03
Bend the brackets at the drilled end.
Download pdf Jetta 2005.5 6 CD Changer Instructions SpecificallyAcura Service BulletinCUSTOMER INFORMATION: The information in this bulletin is intended for use only by skilled technicians who have the proper tools, equipment, and training to correctly and safely maintain your vehicle. These procedures should not be attempted by “do-it-yourselfers,” and you should not assume this bulletin applies to your vehicle, or that your vehicle has the condition described. To determine whether this information applies, contact an authorized Acura automobile dealer.
October 29, 2001
01-017 Applies To: 1999.01 3.2TL - ALL 2001 3.2CL - ALL Brake Pedal Pulses (Supersedes 01-017, dated May 7, 2001)
SYMPTOM
When the brakes are applied normally, the driver feels a pulsing sensation through the brake pedal.
PROBABLE CAUSE
The front brake pads have caused a variation in the brake disc thickness.
CORRECTIVE ACTION
Refinish the front brake discs, and install the updated brake pads.
Download ManualTop 10 Reasons why Automotive Suppliers choose AutodeskThe Autodesk approach to Digital Prototyping is unique in that it is scalable, attainable and cost effective allowing a broader group of manufacturers to realize the benefits of digital prototyping with minimal disruption to existing workflows.
Autodesk® offers the most straightforward path for auto suppliers to create, share, and maintain a single digital model – enabling greater collaboration and innovation by bringing together design data from all phases of the product development process.
1. Conceptual Design Creativity Autodesk® offers a unique conceptual design approach that extends from sketch to completed surface. Autodesk® SketchBook® Pro provides a way for designers to start with a 2D digital sketching tool that emulates physical brushes and pencils. Sketches can be reused and transformed into 3D concept models and Class A surfaces with the Autodesk® AliasStudio™ product family, the solution of choice for Automotive industrial designers. Autodesk® Showcase™ and Autodesk® Opticore™ Realizer software provide a scalable implementation from desktop to high end visualization systems including state of the art real time ray tracing for interactive visual realism.
2. Intelligent Mechatronic Systems Design Autodeskprovides a cost effective and scalable solution for mechatronic development. Autodesk® Productstream® software enables various design elements within a mechatronic assembly – mechanical, electrical, and software – to be managed together with change control and release. In addition, Autodesk® Inventor® is able to incorporate circuit board designs from a variety of ECAD applications for the packaging of complex electromechanical products. In addition, Autodesk Inventor Professional software is able to incorporate control system designs from AutoCAD Electrical®A Memory Model Sensitive Checker for C#Modern mainstream programming languages like Java and C# support multi- threading as an essential feature of the language. In these languages multiple threads can access shared objects. Moreover, synchronization mechanisms exist for controlling access to shared objects by threads. If every access to a shared object by any thread requires prior acquisition of a common lock, then the program is guaranteed to be “properly synchronized”. On the other hand, if there are two accesses to a shared object/variable v by two different threads, at least one of them is a write, and they are not ordered by synchronization — the program is then said to contain a data race, that is, the program is improperly synchronized. Improperly synchronized programs are common for more than one reason — (a) programmers may want to avoid synchronization overheads for low-level program fragments which are executed frequently, (b) programmers may forget to add certain synchronization operations in the program, or (c) programmers forget to maintain a common lock guarding accesses to some shared variable v since there are often many lock variables in a real-life program.
Problem Statement The work in this paper deals with formal verification (and subsequent debugging) of multi-threaded C# programs which are improperly synchronized. As a simple example consider the following schematic program fragment, and suppose initially x = y = 0. Moreover l1, l2 are thread-local variables while x, y are shared variables.
x = 1;
y = 1;
l1 = y;
l2 = x;
If this program is executed on a uni-processor platform, weAWE Tuning 2000 Audi S4 RS4 K04 Fueling Kit Update 2.0AWE Tuning 2000 Audi S4. RS4 K04 Fueling Kit Update 2.0. Update 2.0 for your AWE Tuning RSK04 fueling kit applies to 2000 S4s.
Remove the decorative cover on top of the airbox to expose
the Mass Air Flow sensor (MAF).
This service can be performed with the sensor housing in place on the car. Take care not to drop any items into the housing opening when swapping sensors.
Figure 1
Step 3:
Unclip the sensor harness plug from the sensor, and pull back the rubber boot.
Note the wire colors:
Pin 1: no wire
Pin 2: Green/yellow stripe
Pin 3: Black/green stripe
Pin 4: Purple/gray stripe
Pin 5: Green
Figure 2
AWE Tuning 2000 Audi S4
RS4 K04 Fueling Kit Update 2.0
Update 2.0 for your AWE Tuning RSK04 fueling kit applies to 2000 S4s. (Update 1.0 upgraded intake boot plug to aluminum and only affected early kits) After considerable testing, we have found it necessary to convert the 2000 S4 Bosch Mass Air Flow sensors (MAF) to the later 2001-02 Hitachi design. Not only is the Hitachi sensor much less prone to failure than the Bosch sensor, it also allows us to fine tune some drivability issues found with the Bosch sensor.
Parts list:
1 Hitachi MAF sensor
1 Wiring harness connector with
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