Tutorial by Examples: en

A Java entry-point class has a main method with the following signature and modifiers: public static void main(String[] args) Sidenote: because of how arrays work, it can also be (String args[]) When the java command starts the virtual machine, it loads the specified entry-point classes and...

Swift 2.3 let url = NSURL(string: "http://google.com/lastPath") let lastPath = url?.lastPathComponent Swift 3.0 let url = URL(string: "http://google.com/lastPath") let lastPath = url?.lastPathComponent

Date FormatSQL StatementSample OutputYY-MM-DDSELECT RIGHT(CONVERT(VARCHAR(10), SYSDATETIME(), 20), 8) AS [YY-MM-DD]SELECT REPLACE(CONVERT(VARCHAR(8), SYSDATETIME(), 11), '/', '-') AS [YY-MM-DD]11-06-08YYYY-MM-DDSELECT CONVERT(VARCHAR(10), SYSDATETIME(), 120) AS [YYYY-MM-DD]SELECT REPLACE(CONVERT(VAR...

If you have void F1(MyType1 x) { // do something } void F1(MyType2 x) { // do something else } and for some reason you need to call the first overload of F1 but with x = null, then doing simply F1(null); will not compile as the call is ambiguous. To counter this you can do F1...

There are a number of useful web resources that can help further your knowledge of expressions in Julia. These include: Julia Docs - Metaprogramming Wikibooks - Julia Metaprogramming Julia’s macros, expressions, etc. for and by the confused, by Gray Calhoun Month of Julia - Metaprogramming, b...

Send a message using GCM HTTP connection server protocol: https://gcm-http.googleapis.com/gcm/send Content-Type:application/json Authorization:key=AIzaSyZ-1u...0GBYzPu7Udno5aA { "to": "/topics/foo-bar", "data": { "message": "T...

SELECT DISTINCT o.name AS Object_Name,o.type_desc FROM sys.sql_modules m INNER JOIN sys.objects o ON m.object_id=o.object_id WHERE m.definition Like '%myField%' ORDER BY 2,1 Will find mentions of myField in SProcs, Views, etc.

To get the current date and time, use the now function: julia> now() 2016-09-04T00:16:58.122 This is the local time, which includes the machine's configured time zone. To get the time in the Coordinated Universal Time (UTC) time zone, use now(Dates.UTC): julia> now(Dates.UTC) 2016-09-04...

VBA supports 2 different concatenation operators, + and & and both perform the exact same function when used with String types - the right-hand String is appended to the end of the left-hand String. If the & operator is used with a variable type other than a String, it is implicitly cast to...

A comment is a way to put arbitrary text inside source code without having the C++ compiler interpret it with any functional meaning. Comments are used to give insight into the design or method of a program. There are two types of comments in C++: Single-Line Comments The double forward-slash seq...

Sometimes, the latest tagged version of a package is buggy or is missing some required features. Advanced users may wish to update to the latest development version of a package (sometimes referred to as the "master", named after the usual name for a development branch in Git). The benefit...

Julia Symbol literals must be legal identifiers. This works: julia> :cat :cat But this does not: julia> :2cat ERROR: MethodError: no method matching *(::Int64, ::Base.#cat) Closest candidates are: *(::Any, ::Any, ::Any, ::Any...) at operators.jl:288 *{T<:Union{Int128,Int16,Int...

This is a continuation of the "main class" and "executable JAR" examples. Typical Java applications consist of an application-specific code, and various reusable library code that you have implemented or that has been implemented by third parties. The latter are commonly referr...

HTML: <div class="container"> <span>vertically centered</span> </div> CSS: .container{ height: 50px; /* set height */ line-height: 50px; /* set line-height equal to the height */ vertical-align: middle; /* works without this ...

Without replacement With combn, each vector appears in a column: combn(LETTERS, 3) # Showing only first 10. [,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9] [,10] [1,] "A" "A" "A" "A" "A" "A" "A" "A" &quo...

Below are examples of generating 5 random numbers using various probability distributions. Uniform distribution between 0 and 10 runif(5, min=0, max=10) [1] 2.1724399 8.9209930 6.1969249 9.3303321 2.4054102 Normal distribution with 0 mean and standard deviation of 1 rnorm(5, mean=0, sd=1) [1...

Without replacement choose(length(LETTERS), 5) [1] 65780 With replacement length(letters)^5 [1] 11881376

When the app is based on more than one criteria, instead of creating a lot of flavors you can define flavor dimensions. The flavor dimensions define the cartesian product that will be used to produce variants. Example: flavorDimensions("dimA", "dimB") productFlavors { ...

Use the following commands to create bookmarks and access bookmarks from within Emacs. Let us say that you are editing a file called foobar.org and suppose that you visit this file frequently to edit / view contents. It would be convenient to access this file with couple of key strokes rather than...

Using variables in a string You can concatenate strings using variables inside a double-quoted string. This does not work with properties. $string1 = "Power" $string2 = "Shell" "Greetings from $string1$string2" Using the + operator You can also join strings usin...