Tutorial by Examples: d

To delete all rows from the table //get writable database SQLiteDatabase db = openHelper.getWritableDatabase(); db.delete(TABLE_NAME, null, null); db.close(); To delete all rows from the table and get the count of the deleted row in return value //get writable database SQLiteDatabase db =...

Download your preferred version from Lightbend with curl: curl -O http://downloads.lightbend.com/scala/2.xx.x/scala-2.xx.x.tgz Unzip the tar file to /usr/local/share or /opt/bin: unzip scala-2.xx.x.tgz mv scala-2.xx.x /usr/local/share/scala Add the PATH to ~/.profile or ~/.bash_profile or ...

A XOR Linked list is also called a Memory-Efficient Linked List. It is another form of a doubly linked list. This is highly dependent on the XOR logic gate and its properties. Why is this called the Memory-Efficient Linked List? This is called so because this uses less memory than a traditional d...

Requirements A version of the Haxe toolkit must be installed Haxe must be present in your system path Command line must be accessible Code Navigate to a desired project directory and create a Test.hx source file with the following content: class Test { static function main() { ...

The example below describes how to declare three different types of direct dependencies in the app/ module's build.gradle file: android {...} ... dependencies { // The 'compile' configuration tells Gradle to add the dependency to the // compilation classpath and inclu...

To download dependencies, declare the repository so Gradle can find them. To do this, add a repositories { ... } to the app/ module's build.gradle in the top-level file. repositories { // Gradle's Java plugin allows the addition of these two repositories via method calls: jcenter() mavenCe...

In a multi-project gradle build, you can have a dependency with another module in your build. Example: dependencies { // Dependency on the "mylibrary" module from this project compile project(":mylibrary") } The compile project(':mylibrary') line decla...

You can have a dependency with a single jar or multiple jar files. With a single jar file you can add: dependencies { compile files('libs/local_dependency.jar') } It's possible to add a directory of jars to compile. dependencies { compile fileTree(dir: 'libs', include: ['*.jar']...

You can add remote dependencies in Gradle usign this structure: compile 'group:name:version' or this alternative syntax: compile group: 'xxx', name: 'xxxxx', version: 'xxxx' For example: compile 'com.android.support:appcompat-v7:24.1.0' The compile 'com.android.support:appcompat-v7:24.1....

{ "description": "My awesome library", "dependencies": { "NETStandard.Library": "1.6.0" }, "frameworks": { "netstandard1.3": { } } } A library that targets netstandard1.3 can be used on any fr...

{ "description": "My awesome library", "dependencies": { }, "frameworks": { "net40": { }, "netstandard1.3": { "dependencies": { "NETStandard.Library": "1.6.0" ...

This demonstrates a non-trivial example of wrapping a C++ dll with Cython. It will cover the following main steps: Create an example DLL with C++ using Visual Studio. Wrap the DLL with Cython so that it may be called in Python. It is assumed that you have Cython installed and can successfully...

The special symbol T represents the value true in Common Lisp, while the special symbol NIL represents false: CL-USER> (= 3 3) T CL-USER> (= 3 4) NIL They are called “Constant Variables” (sic!) in the standard, since they are variables whose value cannot be modified. As a consequence, y...

Actually any value different from NIL is considered a true value in Common Lisp. For instance: CL-USER> (let ((a (+ 2 2))) (if a a "Oh my! 2 + 2 is equal to NIL!")) 4 This fact can be combined with the boolean operators to make programs m...

R has a number of build in constants. The following constants are available: LETTERS: the 26 upper-case letters of the Roman alphabet letters: the 26 lower-case letters of the Roman alphabet month.abb: the three-letter abbreviations for the English month names month.name: the English names fo...

The command prompt comes pre-installed on all Windows NT, Windows CE, OS/2 and eComStation operating systems, and exists as cmd.exe, typically located in C:\Windows\system32\cmd.exe On Windows 7 the fastest ways to open the command prompt are: Press Win 𐌎, type "cmd" and then press ...

Any ASCII editor can edit batch files. A list of editors that can syntax highlight batch syntax can be found here. You can also use the default notepad shipped with windows to edit and view a batch file, although it does not offer syntax highlighting. To open notepad: Press Win 𐌎+R, type notepa...

This quickstart is written for Mac OSX Mavericks, and is a bit more verbose than other installation instructions. It should hopefully cover a few edge cases, such as setting your path, and configuring NPM, which can cause an installation to go awry. # install node # as of OSX Mavericks, we...

# install node-inspector terminal-a$ npm install -g node-inspector # start meteor terminal-a$ cd helloworld terminal-a$ NODE_OPTIONS='--debug-brk --debug' mrt run # alternatively, some people report this syntax being better terminal-a$ sudo NODE_OPTIONS='--debug' ROOT_URL=http://hellow...

I have the following list: 1. Alon Cohen 2. Elad Yaron 3. Yaron Amrani 4. Yogev Yaron I want to select the first name of the guys with the Yaron surname. Since I don't care about what number it is I'll just put it as whatever digit it is and a matching dot and space after it from the beginni...