Tutorial by Topics: h

Data types are nothing but variable you used to reserve some space in memory. Python variables do not need an explicit declaration to reserve memory space. The declaration happens automatically when you assign a value to a variable.

Security practices in Java can be separated into two broad, vaguely defined categories; Java platform security, and secure Java programming. Java platform security practices deal with managing the security and integrity of the JVM. It includes such topics as managing JCE providers and security poli...

We can utilize CI's shopping cart library when we are building a e-commerce site. we can setup add to cart, update cart items, delete cart items and even clear the cart functionalities using this library. From CodeIgniter Doc : The Cart Class permits items to be added to a session that stays active...

Virtually all apps are using asynchronous functions to keep the code from blocking the main thread.

The QListView widget is part of the Model/View programming mechanisms of Qt. Basically, it allows to display items stored in a Model under the form of a list. In this topic we will not get deep into the Model/View mechanisms of Qt, but rather focus on the graphical aspect of one View widget: the QLi...

This section provides an overview of what blackberry is, and why a developer might want to use it. It should also mention any large subjects within blackberry, and link out to the related topics. Since the Documentation for blackberry is new, you may need to create initial versions of those rel...

Android application package (APK) is the package file format used by the Android OS for distribution and installation of mobile apps and middleware. You can download APKs from Google Play Store, Amazon App Store, or other third party markets or websites. APKs can be sideloaded (depending on appli...

This section provides an overview of what rmarkdown is, and why a developer might want to use it. It should also mention any large subjects within rmarkdown, and link out to the related topics. Since the Documentation for rmarkdown is new, you may need to create initial versions of those relate...

Eclipse has many shortcuts to make your life easier.

HQL is Hibernate Query Language, it based on SQL and behind the scenes it is changed into SQL but the syntax is different. You use entity/class names not table names and field names not column names. It also allows many shorthands. The main thing to remember when using hql is the use the class...

This topic will cover interop between VFP and .NET.

One of the challenges I faced when I first started using SAS was not only passing Macro Variable data into a PROC SQL pass-through, but having it resolve properly if it needed quotes around it. When passing a string like value or date/datetime into a PROC SQL pass-through, it most likely needs to ha...

Inserting an image in a word document using OpenXml require two actions: add the image inside the openxml and refer to the image in your Document if you only add the image to the openxml structure without refering it in the Word Document, the next time you "open / save" your document...

There are several reasons you might come across for needing email capabilities in SAS. You could be sending an email to notify someone that a process passed/failed, you could be sending an email containing Macro Variables that show how many records have been loaded at the end of your data feed, or m...

This section provides an overview of what teechart is, and why a developer might want to use it. It should also mention any large subjects within teechart, and link out to the related topics. Since the Documentation for teechart is new, you may need to create initial versions of those related t...

When laying out controls, it is easy to hard-code specific values in margins and paddings to make things fit the desired layout. However, by hard-coding these values, maintenance becomes much more expensive. If the layout changes, in what might be considered a trivial way, then a lot of work has to ...

adb shell opens a Linux shell in a target device or emulator. It is the most powerful and versatile way to control an Android device via adb. This topic was split from ADB (Android Debug Bridge) due to reaching the limit of examples, many of which were involving adb shell command. adb shell ...

This topic discusses how to map one-to-one type relationships using Entity Framework.

The topic discusses how you can map one-to-many and many-to-many relationships using Entity Framework Code First.