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  • How to correct a junior, but encourage him to think for himself? [closed]

    - by Phil
    I am the lead of a small team where everyone has less than a year of software development experience. I wouldn't by any means call myself a software guru, but I have learned a few things in the few years that I've been writing software. When we do code reviews I do a fair bit of teaching and correcting mistakes. I will say things like "This is overly complex and convoluted, and here's why," or "What do you think about moving this method into a separate class?" I am extra careful to communicate that if they have questions or dissenting opinions, that's ok and we need to discuss. Every time I correct someone, I ask "What do you think?" or something similar. However they rarely if ever disagree or ask why. And lately I've been noticing more blatant signs that they are blindly agreeing with my statements and not forming opinions of their own. I need a team who can learn to do things right autonomously, not just follow instructions. How does one correct a junior developer, but still encourage him to think for himself? Edit: Here's an example of one of these obvious signs that they're not forming their own opinions: Me: I like your idea of creating an extension method, but I don't like how you passed a large complex lambda as a parameter. The lambda forces others to know too much about the method's implementation. Junior (after misunderstanding me): Yes, I totally agree. We should not use extension methods here because they force other developers to know too much about the implementation. There was a misunderstanding, and that has been dealt with. But there was not even an OUNCE of logic in his statement! He thought he was regurgitating my logic back to me, thinking it would make sense when really he had no clue why he was saying it.

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  • Folder Permissions in Windows 7

    - by gameshints
    I'm trying to securely share a folder across two computers on a relatively public network. However, I'm a bit confused on how permissions work and was hoping for some clarification between the following so I don't accidentally make something public I don't want. When you right-click a folder and go to properties, what is the difference between Sharing Tab - 'Share...' button - List of users and permissions there Sharing Tab - 'Advanced Sharing...' button - 'Permissions' button - List of users and permissions there Security Tab - List of users and permissions there Thanks!

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  • How is the MAC address on a computer determined?

    - by Zero Stack
    While imaging some computers today, I started to wonder... what if two LAN MAC addresses on two different computers matched?... That would cause some problems. I later came to understand that the MAC address' 48-bit address space contains potentially 248 or 281,474,976,710,656 possible MAC addresses. [ in other-words, a lot of networking devices ] How are these MAC addresses determined? Will we ever run out of them? ( I know the second question is speculation, but there are a lot of devices that require a mac addresses...) Do MAC addresses get recycled?

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  • Starting Apache through XAMPP is not working

    - by nogamo
    I've checked the error logs for this particular problem and it seems no access can be made to port 80. (OS 10013)An attempt was made to access a socket in a way forbidden by its access permissions. : make_sock: could not bind to address [::]:80 Turning the Windows firewall off didn't work, so I'm a bit lost. All of this is running on my laptop so I don't have my own "server" per se but I was under the impression that this would work without the need for one independent of my own personal computer. How would I solve this?

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  • How can I modify the BAT file in this post so it will randomly select 1 background contained in a folder containing multiple backgrounds?

    - by Radical924
    Is there a way to modify the bat file from this post here: How do I set the desktop background on Windows from a script? so that it will randomly select 1 background image from a folder containing multiple images??? AND I would also like the background to randomly change to one of the backgrounds randomly contained in the same folder. If this is possible how would I modify the bat file below??? @echo off reg add "hkcu\control panel\desktop" /v wallpaper /t REG_SZ /d "" /f reg add "hkcu\control panel\desktop" /v wallpaper /t REG_SZ /d "C:\[LOCATION OF WALLPAPER HERE]" /f reg delete "hkcu\Software\Microsoft\Internet Explorer\Desktop\General" /v WallpaperStyle /f reg add "hkcu\control panel\desktop" /v WallpaperStyle /t REG_SZ /d 2 /f RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters exit Also I noticed that this bat file won't work usually (9 times out of 10)... I receive an "ERROR: The system was unable to find the specified registry key or value." I have Windows 7 64-BIT Home Premium Service Pack 1

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  • In developing a soap client proxy, which return structure is easier to use and more sensible?

    - by cori
    I'm writing (in PHP) a client/proxy for a SOAP web service. The return types are consistently wrapped in response objects that contain the return values. In many cases this make a lot of sense - for instance when multiple values are being returned: GetDetailsResponse Object ( Results Object ( [TotalResults] => 10 [NextPage] => 2 ) [Details] => Array ( [0] => Detail Object ( [Id] => 1 ) ) ) But some of the methods return a single scalar value or a single object or array wrapped in a response object: GetThingummyIdResponse Object ( [ThingummyId] => 42 ) In some cases these objects might be pretty deep, so getting at properties within requires drilling down several layers: $response->Details->Detail[0]->Contents->Item[5]->Id And if I unwrap them before passing them back I can strip out a layer from consumers' code. I know I'm probably being a little bit of an Architecture Astronaut here, but the latter style really bug me, so I've been working through my code to have my proxy methods just return the scalar value to the client code where there's no absolute need for a wrapper object. My question is, am I actually making things more difficult for the consumers of my code? Would I be better off just leaving the return values wrapped in response objects so that everything is consistent, or is removing unneccessary layers of indirection/abstraction worthwhile?

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  • Workaround broken sudo?

    - by perreal
    I managed to break sudo by deleting the libc.so.6 sym-link in /lib. I copied the actual file and created a symbolic link with the same name under my home directory by using LD_PRELOAD=/lib/libc-2.11.3.so. At this point, all binaries linking libc are working through preload except sudo. For sudo, I need to write (and don't know why): $ /lib/ld-linux-x86-64.so.2 --library-path . /usr/bin/sudo but this gives me: $ sudo: must be setuid root Checking the permissions: $ ls -l /usr/bin/sudo $ -rwsr-xr-x 2 root root 166120 So the setuid bit is actually set. Question: I need to create a symbolic link named /lib/libc.so.6 through my active ssh connection without using sudo, or, make sudo work somehow. I don't have the root password and I can't connect through ssh anymore. Is there any other way I can get authorization?

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  • What is causing my wireless problems?

    - by user34629
    I have a Dell XPS M1330, since I moved to my new house, the wireless barely works on it, my housemates report no problems, so I guess it's something to do with my laptop. It's eratic in normal mode, sometimes not working for days, usually working on-and-off, forcing me to reload pages a few times before they work, etc. It works perfectly in safe mode, the driver I'm using is the Intel PRO/Wireless 3945ABG Network Connection, version 12.4.4.5, with a date at 26/10/2009, the most recent one I could find, bluetooth is not enabled, and I'm running Vista 32-bit Home Premium, which it shipped with. I also tried disabling IPv6 and resetting the IP stack, both to no avail. Can anybody help me?

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  • Hooking up many different external HDs simultaneously

    - by cbizz
    I need a large amount of external storage for an upcoming project. I'm planning on purchasing 10 2TB external drives. I need them all hooked up to a single machine at the same time. What issues will I run into? I plan on using 2 power strips and having them all externally powered from the wall. I will use a USB hub to plug in all the drives. I need drive access time to be as fast as possible. I am using Ubuntu Linux(64 bit). Will I be able to mount 10 drives?

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  • Install Problems on ASUS X401A Notebook

    - by tired_of_trying
    okay... I tried many approaches to install Ubuntu 12.xxx on my new Asus notebook with varying degrees of failure... First: I'm not a newbie but I'm as frustrated as one! Install background: Install from USB DVD drive: The install went well. Re-booted machine. choose ubuntu and it errors with a MBR file error (can't remember the exact wording - something to do with missing the file. Choosing to boot W7 works fine. Install from USB Stick: Couldn't get machine to recognize the .iso Install into Oracle's Vbox: Got the boot splash screen, then hangs with a zillion errors. Note: I didn't have any problems installing ubuntu in Vbox on my iMac and it run's great. Installed using wubi: Installed fine but get errors when booting ubuntu (it doesn't find the needed wubi files). I downloaded to the C: drive and tried installing from there - no luck. For kicks: I tried running Slax Linux .iso from a USB stick and it runs fine. Some Questions: Did I use the correct .iso? (I tried 12.04.0 and 12.04.1 both 32 and 64 bit versions. I simply downloaded them from the download link and didn't use/look for an alternate version. Do I need to do something special when burning the .iso to disc? What? I did read tons of posts but, no luck with finding the solution. Any help is appreciated... thanks

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  • robots.txt file with more restrictive rules for certain user agents

    - by Carson63000
    Hi, I'm a bit vague on the precise syntax of robots.txt, but what I'm trying to achieve is: Tell all user agents not to crawl certain pages Tell certain user agents not to crawl anything (basically, some pages with enormous amounts of data should never be crawled; and some voracious but useless search engines, e.g. Cuil, should never crawl anything) If I do something like this: User-agent: * Disallow: /path/page1.aspx Disallow: /path/page2.aspx Disallow: /path/page3.aspx User-agent: twiceler Disallow: / ..will it flow through as expected, with all user agents matching the first rule and skipping page1, page2 and page3; and twiceler matching the second rule and skipping everything?

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  • Is there a better way to organize my module tests that avoids an explosion of new source files?

    - by luser droog
    I've got a neat (so I thought) way of having each of my modules produce a unit-test executable if compiled with the -DTESTMODULE flag. This flag guards a main() function that can access all static data and functions in the module, without #including a C file. From the README: -- Modules -- The various modules were written and tested separately before being coupled together to achieve the necessary basic functionality. Each module retains its unit-test, its main() function, guarded by #ifdef TESTMODULE. `make test` will compile and execute all the unit tests, producing copious output, but importantly exitting with an appropriate success or failure code, so the `make test` command will fail if any of the tests fail. Module TOC __________ test obj src header structures CONSTANTS ---- --- --- --- -------------------- m m.o m.c m.h mfile mtab TABSZ s s.o s.c s.h stack STACKSEGSZ v v.o v.c v.h saverec_ f.o f.c f.h file ob ob.o ob.c ob.h object ar ar.o ar.c ar.h array st st.o st.c st.h string di di.o di.c di.h dichead dictionary nm nm.o nm.c nm.h name gc gc.o gc.c gc.h garbage collector itp itp.c itp.h context osunix.o osunix.c osunix.h unix-dependent functions It's compile by a tricky bit of makefile, m:m.c ob.h ob.o err.o $(CORE) itp.o $(OP) cc $(CFLAGS) -DTESTMODULE $(LDLIBS) -o $@ $< err.o ob.o s.o ar.o st.o v.o di.o gc.o nm.o itp.o $(OP) f.o where the module is compiled with its own C file plus every other object file except itself. But it's creating difficulties for the kindly programmer who offered to write the Autotools files for me. So the obvious way to make it "less weird" would be to bust-out all the main functions into separate source files. But, but ... Do I gotta?

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  • Server Sizing Methodology

    - by adbrpc
    Our development environment consist of JBoss 5.0.1 DB Server, SQL Server 2008, Oracle IDM. Hardware is Win 2008 32 bit, 4GB RAM. We have reached stage where our environment can not handle application resulting in JBoss shut down throwing out of memory errors and CPU reaching to 90% usage. I am looking methodology to calculate correct server sizing where I input TPS, max number of concurrent users, max CPU utilization etc.. to give me number of servers, RAM size, number of cores. I am expecting application to grow 10% annually. Load Balancer and Failover should also be taken in account while sizing.

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  • xen 4.0 squeeze fails to start guests with: launch_vm: SETVCPUCONTEXT failed

    - by mcr
    As Chris Benninger says over at: http://www.benninger.ca/?p=58 lots and lots of people have the problem with Squeeze and xen4.0 telling them: launch_vm: SETVCPUCONTEXT failed (rc=-1) but nobody seems to know what the solution is. I don't know either, but at least here, a solution might get recorded. In my case, I can start one guest machine. An identical configuration for a second machine fails. Whichever one I start first, is the one that runs, the other gets the error. I've got at least a dozen other systems (at my work) running great with Squeeze and 64-bit XEN, but not this new machine at home.

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  • Hosting company that does Linux VPS and MS SQL

    - by danielmcq
    I'm looking for hosted solutions but there are so many companies that finding the right one using a Google search is a bit overwhelming. Ideally I would like a hosting company which has following options: -Linux VPSs - Individual VPSs should be fairly cheap since I plan on putting one or two services per VPS i.e web server on one (httpd and ColdFusion), an SVN server on another, etc. -Managed MS SQL databases - My company already has data in MS SQL databases and a lot of ColdFusion code written that has MS SQL specific commands in it. -Individually purchased dedicated IP addresses -Preferably located in the North America region My plan would be to setup one Linux VPS as a gateway/firewall/VPN server and have all of my traffic routed through so that my other servers would not use of bandwidth by talking to each other. The trick is also finding a company that does Linux VPS AND MS SQL databases. Does anybody know of any hosting companies offer what I'm looking for? Let me know if I need to add more details.

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  • I'm having two Windows 7 installed and running in my laptop. How can I delete the other one?

    - by mandy
    I have another concern with my laptop. When I had a problem with the microphone, I tried to restore the system. But sadly, I had a mistake with the process and accidentally it was formatted. Its a built in laptop. (Toshiba m840, Windows 7, 64 bit) After the format process, programs were automatically installed. Until a friend of mine told me that I might have 2 Windows installed already. When we checked the program, he was right. I'm having 2 program files folders, which means I really have 2 Windows installed and running in my laptop. Supposed to be, there should be only 1 right? Can anyone help me how to delete the other Windows? Because I think it is occupying much space in the hard drive. They say it could make my laptop become slower.

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  • Access MacZFS via network from XBMC

    - by AreusAstarte
    I have a ZFS RAID (zpool with three drives) hooked up to my Mac that I want to share in my LAN so that the XBMC client on my OUYA console hooked up to the television can read the drive and use it to stream my movies and television shows onto the television set. I've searched around for a bit but so far haven't found anything that helped me with it. I know that when connecting to the Mac with SSH I can't just access the drive due to different formatting. What do I have to do so that XBMC will be able to read it? How do I share it?

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  • sql server: losing identity column on export/import

    - by Y.G.J
    Recently I started dealing with SQL Server, my previous experience was in MS-Access. When I'm doing an import/export of a db, from the server to my computer or even in the server, all column with primary key loose the key. Identity is set to false and even bit is not set to the default. How can I can I use an import/export job to make an exact copy of the db and its data? I don't want to have to perform a backup and restore every time I want the same db somewhere else, for another project, etc. I have read about "edit mapping" and the checkbox but that did not helped with the identity specification... and what about the primary key of the tables and the rest of the things?

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  • Is virtual machine slower than the underlying physical machine?

    - by Michal Illich
    This question is quite general, but most specifically I'm interested in knowing if virtual machine running Ubuntu Enterprise Cloud will be any slower than the same physical machine without any virtualization. How much (1%, 5%, 10%)? Did anyone measure performance difference of web server or db server (virtual VS physical)? If it depends on configuration, let's imagine two quad core processors, 12 GB of memory and a bunch of SSD disks, running 64-bit ubuntu enterprise server. On top of that, just 1 virtual machine allowed to use all resources available.

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  • WINAPI window management question

    - by gekod
    I'm learning to develop windows applications using WINAPI and plain C. Now I got a bit confused with all those handles and would like to ask if you guys could teach me some good practices to structure and handle controls and windows. Here's where I get confused: Using the IDs declared in the resources for each object, we can get their handles using GetDlgItem(). Now what if we don't know their parent, which is needed by this function. One example: We have the main window created at launch. Then we register two new window classes and create a window for each new class and we create a message function for each too. Now if inside one of the children windows I create a button and inside the other child window I create a text label. Now when we click the button inside of child window A the label in child window B shall be modified to whatever. The WM_COMMAND for the button is interpreted inside the message loop for child window A. Now what would be the best and more elegant way to access the text label inside the child window B? I am in the process of learning the WINAPI and just want to learn it right from the start instead of producing Hacked code that someday becomes unreadable and to later have to adapt to a new way of programing.

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  • My images look desaturated and brighter on the iPhone than on my Mac (in PS, Pixelmator & Finder)

    - by david
    I save my image in Photoshop (No Color management). I put it on the iPhone and it looks brighter and desaturated. Also my blue-green looks more like blue. I have tried some color profiles on the net: http://luminous-landscape.com/forum/index.php?showtopic=38121 http://www.colorwiki.com/wiki/Color_on_iPhone But the images still look different. I'm going insane with this because its stealing my time away and i can't fix it. Every bit of help would be appreciated! Do I have to create my own profile? Is there an easy way??

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  • How do you blend multiple colors in HSV (polar) color-space?

    - by Toxikman
    In RGB color space, you can do a weighted multiple-color blend by just doing: Start with R = G = B = 0. Then we perform a blend at index i using a set of colors C, and a set of normalized weights w like so: R += w[i] * C[i].r G += w[i] * C[i].g B += w[i] * C[i].b But I'd like to interpolate the colors in the HSV color-space instead, so that saturation and brightness are uniform across the interpolation. I know I can blend saturation and brightness in the same way as above, but the HUE component is an angle around a continuous circle, since HSV is essentially a polar coordinate system. Blending only two HSV colors makes sense to me, you just find the shortest arc around the circle and interpolate between the two hues. But when you attempt to blend more than 2 colors, it becomes a bit of a puzzle. You have to handle anomalous cases, like 4 equally-weighted colors with a hue at 0, 90, 180, and 270 degrees. They basically cancel each other out, so any hue will do. Any ideas would be greatly appreciated.

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  • HP Pavilion dv6 overheating, how do I set fan speed to 100% all the time?

    - by henpenben
    So I have a HP Pavilion dv6, and it works fine. But when I play, say, Minecraft, the temperature jumps to around 60c-70c. I wouldn't be bothered by this, but I bought this computer and played Minecraft on my lap. The laptop overheated and the video card melted. (I'm not kidding) So I was wondering how I could set the fan speed on my laptop to 100% all the time so it never overheats. HP has this "HP Coolsense" thing that when I pick up the laptop and wiggle it around a little bit and pretend it's unstable, the fan cranks up to 100%. I want 100% all the time without me having to pick up the laptop every 10 minutes. Thanks, henpenben

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  • Using 2d collision with 3d objects

    - by Lyise
    I'm planning to write a fairly basic scrolling shoot 'em up, however, I have run into a query with regards to checking for collision. I plan to have a fixed top down view, where the player and enemies are all 3d objects on a fixed plane, and when the enemy or player fires at the other, their shots will also be along this fixed plane. In order to handle the collision, I have read up a bit on collision detection in 3d, as it is not something I have looked into previously, but I'm not sure what would be ideal for this situation. My options appear to be: Sphere collision, however, this lacks the pixel precision I would like Detection using all vertexes and planes of each object, but this seems overly convoluted for a fixed plane of play Rendering the play screen in black and white (where white is an object, black is empty space), once for enemies and once for the player, and checking for collisions that way (if a pixel is white on both, there is a collision) Which of these would be the best approach, or is there another option that I am missing? I have done this previously using 2d sprites, however I can't use the same thinking here as I don't have the image to refer to.

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  • Grepping through the results of apachectl -S

    - by CamelBlues
    I have a server with about 300 virtual hosts. When I want to make sure a specific httpd.conf file is loaded into the Virual Host config and the syntax is correct, I run apachectl -S. The problem is, though, I get a ton of output. I've tried apacectl -S | grep 'foo' and apachectl -S > foo.txt to try and make this data a little bit more manageable, but the output of the command is not conducive to grepping or shoving into a text file. When I try apachectl -S | grep 'foo', it simply returns the entire output of apachectl -S. When I try apachectl -S > foo.txt, foo.txt is an empty file. This may have something to do with how the server is configured, because I am able to successfully grep on my local machine. Any suggestions?

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