2013年12月16日星期一

Where can i find ready projects of c# with User interface and its source code?

i am learnig C# and i am looking for some turtorials,some guidance on this langauge and some ready projects with source code to understand how to use its concepts practically.

please suggest some Good Websites or othe sources

thank you.

C# gui techs often means for a “appmodel” (appmodels differ from eachother in some district aspects between gui schemes)

there are c# gui programming related to 3 types of appmodels (vm desktop local,web,mobile)

vm desk apps differ much from web apps,former is downed to local vm to be exe ed,the later hower keep much its logic server sidely only gui parts be downed

for vm local appmodel apps: winform and WPF cloud be used.
for web appmodel apps : webform and general rich page techs (sliverlight,js+css+xml ones.) cloud be used.

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so before everything goes,just make yourself understood which c# appdomain would you dovote yourself into?vm local app or webapp?or even mobile ones (mono for android is popular nowadays)

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the reason why should you choose cpp but not java or .net

The computer science program at school seems to offer emphasis on C++. But when I look at jobs needed in the marketplace, it seems there are way more jobs for Java and .NET, Oracle. So why does the school still place all emphasis on C++?

Should I go with a two year community college programming program that includes Java and Oracle instead?

I want to be able to get a good job that could help me get good programming experience. I’ll figure out what I like as time passes.

I’m not asking “which is better”. Rather which will give me the best chance of getting a good job when I’m done?

Any advice or help with this please?? I appreciate all feedback. Thanks.

education for computer majors aims at areas where software art and programming art got birthed,where “c series” languages (c and its variety variants) strongly lated to these areas and could be selected as the classic paradisms languages for system programming and system app programming(native system implents and native app dev deals with the main ongoing programming trend at that times and lasts many years before internet apps overtaken it).

java,c# is birth for another industrical appmodel and its dev policy parallelly: the internet apps (not socket or cgi api based apps,be attended here!) which requires the industry: a “general app host” to offer “distributed services based app ecosystem ” abilities .

software vms like java,c# then pop ups to stastify the needs.with it,the industy can dived the apps as the “app server side”(as fat as possible is ok) and “app app viewer side”(as thin as possible is ok),with the main business logics kept in the serverside.which can treate “app happend in all desktop,web,mobile ends” in a general b/s manner.

we know later that the above “app ecosystem” is cloud .vm are iaas,saas software,with the help of visualize techs the iaas facilities could be meet(idc providers can offer vps,cloud host to the sublvl of cloud services users),saas could be meet(apps back happened in the vm can offer web services to the final users).

above is the deploy shedmas,for development,web enhanced it developing it to be b/s distributed cloud apps.many frameworks were equiped to the vm libs(for the cloud serverside web programming,certainly there are frontend standards and programming techs.).

in a sentence : cloud is the industry solutions for such “cloud INTERNET apps” cocurrently in the topmost software and architecture lvl (cloud->iaas->saas->vm+web).

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though java,c# once was brought not for local native programming enhancements,however it has overlays with cpp in natives os development,there are encapsulation from java to the native os dlls,let the programming dev the app for the native usage in vm languages.like scripting language for the upstream cpp language.

but anyway,it differ too much with what we mentioned in their init appmodels:the langugae for cloud web server programming domains.

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for general programming tech learning advices,the native os and aui lvl software compent knowledge and some bit of knowledge on how c works and its syntax be used is needed.
if not concerned on system programming,just limiting it under “blackbox underlays” is ok.

for job advices,again,native system knowledge + c is recommended to help you get further on in the way of c#,java + web programming.but not nessary,just putting more soul on c#,java,treating it as your main “toolkit app” language.

 

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2013年12月13日星期五

should i learn cloud programming or embeded programming?

Please tell me about both and pros and cons…

if it is said that evolvement tookplace in every IT corners bounded within each domain,then there is also big events happened in the top overall programming industry lvl,soft app lvl,hardware lvl.

today is a time all traditional IT techs mixed together and fuse into new techs,there are asbtractness,integrateness,outdate schemes were deprecated,new ones were proposaled,and even some goodolds techs find their new true places in newly spots.

above changes introduce the cloud and mobile architecture nowadays:

1,vm language system as the basic distributed runtime

old techs like DCOM,RMI were deprecated,software vms were not only used as source unit container,but also could be used as the bin module container,offering remote compents access.

2,web programming as the based from of cloud computing application.

X11 romote desktop,”distance desktop techs,vnc” were deprecated,the trending web techs based on its “distributed gui page”,and “distributed page servers” overtaken this.

3,visual techs were xen,kvm

virutal hosting and vps were deprecated,new EC2 like cloud computer infrastructures brings IAAS,SAAS to the public.

4,andriod as computer thin client ends.

old network pc terminals (usually w/o disks,adv video cards) were deprecated,some well-famed desktop lvl runtimes in its lite edtions were introduce into linux ,outputting the specific os – andriod,and it use vm languages as its main favor programming language.

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pros:

1.andriod uses linux as its os kernel,it widely make linux avaliable to the public,thus linux get puplor vs windows even in desktop domain in recent years.

2.in both cloud cli and server end,it uss many traditional techs as the basement of new cloud developing techs.

limiting them still under good old os and vm programming ,this reduce the learning curve for developers and industry.

3.web as the mainstream as cloud techs:it widerange the web domain,fullfil web apps.

4.for all lvl indstry suppliers and users:it unite in all brands to offer a standardization mobile terminal market.

andriod becomes more and more replacements for all kinds of mobile ends.

cons:

though techs were made to a molding and systematic。,but in some little monotone(you see,web cant fulfill many orgianl c/s apps like file storage and graphic stream services — such as cloudgame or webgames,but only works well on most of enterprise apps.)。

anyway,cloud are young, they are just traditional techs based adv techs formed in a natual way to reach today’s.but it owns a bright futher,though nowadays it maybe a little be blusterous。but it should earn its way.

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what is software frameworks?or programming software?

api framework?or api runtime framework?

in a engineer’s view,we have to take into consideration belows to begin work on a practical software project.

system problems like:

1).software hosting (should the final software running under vm or native hosting os?)
2).compiler backend runtime techs to the language system (the thread,io mechanisms of the underlaying system problems related to the language system to be choosen to use)

programming problems:

1).language system syntax (will the language easy for the team member?fit for the software development requirments?cooperate well with other languages may used?)
2).designer-support elements builtin the language like OO (how the language be used in some type of “programming fashion,paradism”?)
3).language libs as enhancment to the language targetting at some piece of “language problem domain” (is there any more syntax addons ,tricks for the language system to be extended ?)

app domain problems like:

1).language libs as enhancment to the languge targetting at some piece of “app domain problems”(is there many wellknown good libs in the industy for us to use to solve already-abstracted problems?or is there datastruct,algo basement in the language to implented “unabstract” problems?)
2)appmodel at a general intergrated manner to minus all(is there a appmodel for some advanced form “problem domain” to conclude in all “development,deployment” aspects? like LAMP for webapp dev,andriod compents for mobileapp dev)
3).appmodel design(how the subapp system like engine MODs be produced?is there a programming way like “Spring,hibernate” for web?or in a visual editor way like “unity3d” for game?)

then,comes the final programmer problems like:

1).designer-support within the language syntax+scheme.
2).designer-support schemes resided out of the language system (agile,Designer pattern,that can be treated as general language design ways.)
3).and much more desinger problems(much language interaction,general xml documenting schema,more programming paradisms,etc..).

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in all these above steps,resue libs focusing on a langauge system happens everywhere,so we have soft libs in and above language lvl that may share the same .dll,.so,jar suffixs.sometimes they are called engines,lib,compents,frameworks in variety names.that is to say:when there is a software design,there is a abstract,and there is a lib.

so it is the time to introduce the answer:be clear in divding soft libs and soft frameworks.

soft libs are basic form of reuseable softwares targetting at any programminglangugae domain or problem domain that may happen mainly before final programmer design problems domain,till “appmodel” popups.

soft frameworks usually are advance resuseables,it happen only when after all system problems,language problems,appdomain subapp system problems be solved and advanced to its toppest then it is the time to build “soft frameworks”,infact it is “appmodel frameworks”

when referring a soft framework,it often concludes in every aspect of the finl software system from programming to deploy to subapp system to output ways(not limited to programmingway,but visual tool assist ways do too).

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why andriod use java to develop apps but not others like native ones?

as above,please answer.

this is a verygood question to be answered with,i think below could help to commentate your doubt:

1) c series languages are not always general for “outter of the system programming domain” development.

datastruct and algos proved to abstract problems into programms well.
produral paradism in c series languagesystems proved to work well in“ system programming” times.
oo has been adpoted as the standard paradism.

cpp as one of the “c series language”,yet with ADT,UDT systems,helps much in AUI programming dev. cpp+oo are general engough for this type of programming.

programmer know AUI (and its associated underlaying systemlvl os native knowledge is needed)is ok to develope this kind of app.

2)however。 there are new programming domains popup.

then time changed,”services api” that hosted in diffierent exeute spaces become greatly needed ———Remote Enterprise Apps in a word.c series language system solution for this is compent mechanism (like cpp corba,dcom,com as webserver compent,,,“app server”,infact,its shourt for romote app server,page server is only one of the servers member,to drive app server into web app server).but it brings more question than could be solved.(explained below)

then time changed again.enterprise dev evolves further into cloud computing, clientside,serverside needed to be treated uniformly,depolyment,,,dev,,exec all should be integrated in 1 appmodel,so as to cut the learning curve and cost down to the over all software project participator to the least (the cloud appmodel system).

this finally driver old native compent based enterprise programming into vm platformed based programming.

3) how java help out in the domains that cpp cant do well

cpp dont fit too much for a industrical language for its a) host in the local native layer b) complex oo addons turning too much cpp libs in unstandard.c)in a word,cpp has little enterprise programming->general cloud programming supports in the flow line.

hardware abilites greatly improved,programm needless to pay attentional to the hardware perfermance,and need more elgant way to exe and depoly and dev their app.programmers need less native os knowledges but more attentions to be working,J2EE get the just-in-time,battry included to help with the programming focus on the just right domains.

————–

java function many years,shows its strong industrical strenght abilities,though he brings overload memery usage,it dont kill the issue.

4)mobile is meant to be made as thin cloud clients.cloud dev were in a appmodel based on java ecosystem.java can do too in mobile app dev.

surely,there are legay solutions for mobile app dev,like qt+cpp(change cpp),coco + objc are another choices for mobile dev.

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2013年12月12日星期四

are java and sql skills affordable to become a freelancer programmer?

If I learn Java Programming Language and one of the database say My SQL will I be able to earn well as a freelancer or do I need to learn more programming languages.To be clear I am not interested in website development but I am interested in programming languages like Java and c++.

what is the scope of Java ? will I be able to earn a handsome amount as a freelancer?
Please reply.

java involes with current most industrical in-trendy programming techs at least in below 3 appdomains:

1)web app: J2EE,usually as distributed enterprise architecture (cloud is such a architecture) serverside development scheme.
2)mobile app : andriod,usually as cloud client development scheme.
3)jvm local app : J2SE ,besides offering basic services for J2EE,it also shows its usage in web or mobile app dev,such as J2SE applets and clickonce,j2se based rich web page techs – the javaFX.

web,as the most common implentment form for the cloud.finally makes it become true almostly in that :cloud = web. so : cloud appdomain = web appdomain

here:appdomains is where egineers finished all basement for the final programmers (the language and problem lvl framework for the language,appmodel for deployer,designer,programmer , all these finally integrated to form a general solutions as the uniform appmodel) left them little to do to workout a “mod app” for the “appmod engine”,and,more and more webservices apis were brought out to meet the appmodel api users to form more apps.

apache pageserver,sql database server,made up of LAMP,which is a appmodel serverside implentment for “WEB APPServer”,java with interfaces and frameworks backend for them is popular.

in cliside,javafx,applet,general js+html+css,html5 as the clientside scheme(certainly general js and htmls is popular).

—————————————

as a freelancer,your need seo techs,website surfuring expenrices more than just programming abilities.that says,you need master what areas should java be used in,where people actives in the appsdomain where there requires a java soft.

all in a sentence:the way to find and open java programming market related customer needs to feed your life.

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what is the essence aspects of java?

the full sense of java,java in all senses,ty

java in full form: a soft vm “appmodel language“ for web dev,mobile dev,javase app dev

bear the name of “appmodel specialized language”,it often not limited into senses of traditional os native languages like cpp—they are general purpose and appmodel langauges

are domain-specialized。

1)delphi,vb rad with language lvl compent (with its deepinto bin lvl compent mechanism addons) supported are such a “appmodel language” (vcl for win32 dev),turning win32 dev into win32 appmodel dev,turning win32 apps are vcl engine mods.with even a rad IDE assit tools supportted.

2) java,c#,jvm,clr are “soft vm appmodel language system”,turning web dev,cloudserver apps dev into web appmodel dev(dev,deploy,exe 3 in 1),turning webapp as “spring,hibernate engine mods”,w/o a rad IDE assit tools supported but strong “literal programming” middleware supports.

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