How to install Windows 10 earlier

If you reserve the free upgrade of Windows 10 and the upgrade is still not available for your computer in Windows Update in Control Panel, you can try the following:
– in Command Prompt (Admin) write the following command: wuauclt /updatenow and press Enter
– go to Windows Update screen in Control Panel where Windows 10 update should be available, starting download
If you receive the Windows Update error 0×80240020, go to C:\Windows\SoftwareDistribution\Download and delete all files. After this, reboot the computer and the process will restart and should be working, with Windows 10 available.
Windows 10 Update

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Windows 8.1 Update 1 available

Windows 8.1 Update 1 is available. It can be downloaded through Windows Update or directly for x64 or x86.

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Cum se scrie si se ruleaza cel mai simplu program C in Visual Studio 2013

Cel mai simplu program C nu face foarte multe. De fapt, poate sa nu faca nimic, insa in acest exemplu il vom scrie astfel incat sa afiseze clasicul Hello World !

Desi complexitatea programului este scazuta, sunt foarte multe de invatat din acest mic program:

  • care este structura unui program C sau C++
  • cum se ruleaza din Visual Studio 2013

Aceste elemente sunt esentiale pentru un viitor programator C/C++ deoarece pe ele se bazeaza restul de reguli. Read the rest of this entry »

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Cum sa deschizi un proiect C/C++ nou in Visual Studio 2013

 

Visual Studio 2013 este in momentul de fata ultima versiunea de cunoscutului mediu de dezvoltare (Itegrated Development Environment – IDE) de la Microsoft. El aduce o serie de imbunatatiri la nivel de editor, compilator si instrumente de dezvoltare care se vad inca din faza de deschidere a unui proiect nou.

Articolul prezinta pasii ce trebuie urmati pentru a deschide un proiect C/C++ nou, de tip consola, in Visual Studio 2013 Read the rest of this entry »

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Utilizarea sirurilor de caractere in limbajul de programare C++

In limbajul de programare C++, un sir de caractere se defineste in doua moduri:

  • vector de caractere – zona de memorie de lungime prestabilita care se rezerva la momentul compilarii aplicatiei;
  • pointer – contine adresa de memorie unde se stocheaza sirul de caractere; de regula, aceasta zona de memorie este alocata la momentul executiei aplicatiei.

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Tutorial Android (6) – Cum sa construiesti si sa afisezi o noua activitate, fereastra sau formular

In acest articol vom sunt descrise elementele de baza necesare pentru dezvoltarea unei aplicatii mobile Android, care are mai multe ferestre sau activitati. Pentru a face acest lucru, trebuie sa stim cum sa construim si sa afiseze o noua fereastra (formular) sau activitate (pentru restul articolului ne rezumam la vocabularul Android si vom folosi termenul de activitate pentru a indica o fereastra sau formular).
Am vazut in articolele anterioare ale Tutorialului Android, care sunt fundamentele unei aplicatii Android si ale componentelor sale. De asemenea, am vazut ca in spatele unei ferestre exista o instanta de tip activitate care are un ciclu de viata si un display (o interfata cu utilizatorul).

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Cum conectam o aplicatie MIDlet J2ME la un serviciu Web .NET folosind kSOAP 2

Serviciile web au avut si continua sa aiba un impact mare asupra dezvoltarii aplicatiilor Web deoarece acestea permit independenta totala între clientii si furnizorii de servicii. Locatia, platforma, limbajul de programare si arhitectura clientilor si a celor care ofera serviciile Web nu are niciun efect asupra lor. Tehnologiile Internet si standardele care au permis definirea si utilizarea serviciilor Web sunt Hypertext Transfer Protocol (HTTP), eXtensible Markup Language (XML), Remote Procedure Call (RPC), Web Services Description Language (WSDL), Simple Object Access Protocol (SOAP) si Universal Description, Discovery, & Integration (UDDI).

In acest articol vom vedea cum conectam o aplicatie MIDlet J2ME la un serviciu Web .NET folosind libraria kSOAP 2. Platforma Java 2 Micro Edition (J2ME) ofera suport pentru Web Services prin J2ME Web Services API (WSA), JSR 172, care ofera doua API-uri optionale: invocare de la distanta de servicii (JAX-RPC) si parsare XML (JAXP). Pentru urmatorul exemplu, vom folosi libraria independenta kSOAP 2, pentru ca are un impact minimal asupra performantei aplicatiei si este eficienta. Solutia este dezvoltata în NetBeans IDE, dar se poate folosi, de asemenea, Eclipse IDE.

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Tutorial Android (5) – Cum se defineste o clasa de tip Activity cu editorul vizual Android Manifest sau fara

In spatele oricarei fereastre sau fomular al aplicatiei mobile Android exista o instanta de tip Activity. Pentru a dezvolta o aplicatie mobila cu mai multe ferestre, trebuie construita pentru fiecare activitate o noua clasa care extinde clasa Activity.

In acest articol, sunt descrise doua modalitati prin care se poate defini o activitate noua, programatic prin editarea directa a fisierului .java sau folosind editorul vizual WYSIWYG (What You See Is What You Get), Android Manifest, care este inclus in plugin-ul Android ADT pentru Eclipse.

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How to connect to a .NET Web Service from a J2ME MIDlet using kSOAP 2

Web services had and continue to have a great impact on the development of Web applications because they allow total independence between clients and service providers. The location, the platform, the programming language and the architecture of both the clients and the services has no effect on each other. The Internet technologies and standards that allowed the implementation of Web services are HyperText Transfer Protocol (HTTP), eXtensible Markup Language (XML), Remote Procedure Call (RPC), Web Services Description Language (WSDL), Simple Object Access Protocol (SOAP) and Universal Description, Discovery, & Integration (UDDI).

In this article we will see how to connect to a .NET Web Service from a j2ME MIDlet using kSOAP2 library. The Java 2 Micro Edition (J2ME) Platform offers support for Web Services through the J2ME Web Services API (WSA), JSR 172, which provides two optional APIs: remote service invocation (JAX-RPC) and XML parsing (JAXP). For the next example, we will use the third party kSOAP 2 library because it is lightweight and efficient. The solution is developed in the NetBeans IDE but you could use also Eclipse IDE.

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Android Tutorial (8) – How to add a menu, programmatic vs. declarative solution

How to add an Android menuAndroid mobile applications have the advantage of being deployed on mobile devices that have touch displays. This enhance the user experience and allows developers to design the user interface so it will be dynamic, easy to use and efficient. Despite this advantage, the display size and usability concepts (one golden rule is to have all the window controls visible on the display) limit the number of buttons and visual controls that can be placed on a single window/form. So, application wide options and functions can be made available using a menu, leaving the display for particular and contextual options.

A menu is a group of options (items) that are accessed using the device Menu key. The menu items are represented by single options or by groups of options, which are organized in submenus.

In this article, we will see how to add a menu to the Android application. The solution is implemented using both the programmatic and the declarative solution that uses menu.xml files. For the declarative solution we will use also the Android visual editor for menus.

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