Tutorial by Examples: u

Found under Terminal > Preferences General In the general tab, you can chose which profile is opened when you start terminal. You can set "Shells open with" to chose which directory terminal opens to, or specify a command to run each time you open a new terminal window or tab. Profil...

Class under test: public class GreetingsService { // class to be tested in isolation private UserService userService; public GreetingsService(UserService userService) { this.userService = userService; } public String getGreetings(int userId, LocalTime time) { // the...

There are already implemented forms within Django to change the user password, one example being SetPasswordForm. There aren't, however, forms to modify the user e-mail and I think the following example is important to understand how to use a form correctly. The following example performs the foll...

To get Nexus Repository Manager 2 running so you can use it with Maven, you need to run through a few steps before you install the repository manager itself. Download and install the Oracle JRE, version 7 or newer (suggest using version 8, because, duh). It can be obtained at the following link: ...

Once you've met the prerequisites for installing Nexus Repository Manager 3, you'll need to follow a few steps to get it running on Linux. Open a terminal Copy the package to a sane place sudo cp nexus-3.1.0-04-unix.tar.gz /usr/local cd /usr/local Untar the Nexus Repository Manager package via...

public class MergeSortBU { private static Integer[] array = { 4, 3, 1, 8, 9, 15, 20, 2, 5, 6, 30, 70, 60,80,0,9,67,54,51,52,24,54,7 }; public MergeSortBU() { } private static void merge(Comparable[] arrayToSort, Comparable[] aux, int lo,int mid, int hi) { for (int ...

Detailed instructions on getting rdf set up or installed.

As an example, lets us look at a Wordpress container The Dockerfile begins with FROM php:5.6-apache so we go to the Dockerfile abovementioned https://github.com/docker-library/php/blob/master/5.6/apache/Dockerfile and we find FROM debian:jessie So this means that we a security patch appears f...

When displaying labels on contours Matlab doesn't allow you to control the format of the numbers, for example to change to scientific notation. The individual text objects are normal text objects but how you get them is undocumented. You access them from the TextPrims property of the contour handl...

//integer (not really needed unless you need to round numbers, Excel with use default cell properties) worksheet.Cells["A1:A25"].Style.Numberformat.Format = "0"; //integer without displaying the number 0 in the cell worksheet.Cells["A1:A25"].Style.Numberformat.Form...

Detailed instructions on getting javafx-8 set up or installed.

Anonymous pipes, or simply pipes, are kernel-managed objects exposed to processes as a pair of file descriptors, one for the read terminus and one for the write terminus. They are created via the pipe(2) function: int pipefds[2]; int result; result = pipe(pipefds); On success, pipe() record...

cURL can keep cookies received in responses for use with subsequent requests. For simple session cookie handling in memory, this is achieved with a single line of code: curl_setopt($ch, CURLOPT_COOKIEFILE, ""); In cases where you are required to keep cookies after the cURL handle is de...

An example of defining a hash table and accessing a value by the key $hashTable = @{ Key1 = 'Value1' Key2 = 'Value2' } $hashTable.Key1 #output Value1 An example of accessing a key with invalid characters for a property name: $hashTable = @{ 'Key 1' = 'Value3' Key2 = 'Val...

An example, to add a "Key2" key with a value of "Value2" to the hash table, using the addition operator: $hashTable = @{ Key1 = 'Value1' } $hashTable += @{Key2 = 'Value2'} $hashTable #Output Name Value ---- -----...

The cluster library contains the ruspini data - a standard set of data for illustrating cluster analysis. library(cluster) ## to get the ruspini data plot(ruspini, asp=1, pch=20) ## take a look at the data hclust expects a distance matrix, not the original data. We ...

With hierarchical clustering, outliers often show up as one-point clusters. Generate three Gaussian distributions to illustrate the effect of outliers. set.seed(656) x = c(rnorm(150, 0, 1), rnorm(150,9,1), rnorm(150,4.5,1)) y = c(rnorm(150, 0, 1), rnorm(150,0,1), rnorm(150,5,1)) ...

Arrow functions will throw a TypeError when used with the new keyword. const foo = function () { return 'foo'; } const a = new foo(); const bar = () => { return 'bar'; } const b = new bar(); // -> Uncaught TypeError: bar is not a constructor...

When you execute scala in a terminal without additional parameters it opens up a REPL (Read-Eval-Print Loop) interpreter: nford:~ $ scala Welcome to Scala 2.11.8 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0_66). Type in expressions for evaluation. Or try :help. scala> The REPL allows ...

Prerequisites This topic is not about Redux and/or Ngrx : You need to be comfortable with Redux At least understand the basics of RxJs and Observable pattern First, let's define an example from the very beginning and play with some code : As a developer, I want to : Have an IUser inter...