Tutorial by Examples: s

Single characters can be extracted using array (square brace) syntax as well as curly brace syntax. These two syntaxes will only return a single character from the string. If more than one character is needed, a function will be required, i.e.- substr Strings, like everything in PHP, are 0-indexed....

TestNG requires JDK 7 or higher to use. According to http://testng.org/doc/download.html in order to install testng you need to add testng dependency to your maven pom.xml or gradle build.gradle file Maven: <repositories> <repository> <id>jcenter</id> <name...

Creating a list of KeyValuePair: Dictionary<int, int> dictionary = new Dictionary<int, int>(); List<KeyValuePair<int, int>> list = new List<KeyValuePair<int, int>>(); list.AddRange(dictionary); Creating a list of keys: Dictionary<int, int> dictionary ...

To change a text file is not easy because its content must be moved around. For small files easiest method is to read its content in memory and then write back modified text. In this example we read all lines from a file and drop all blank lines then we write back to original path: File.WriteAllLi...

This example updates last write time of a huge number of files (using System.IO.Directory.EnumerateFiles instead of System.IO.Directory.GetFiles()). Optionally you can specify a search pattern (default is "*.*" and eventually search through a directory tree (not only the specified director...

This snippet is an helper function to enumerate all files older than a specified age, it's useful - for example - when you have to delete old log files or old cached data. static IEnumerable<string> EnumerateAllFilesOlderThan( TimeSpan maximumAge, ...

Having example type like this: public TestClass { public static string StaticPublicField = "StaticPublicFieldValue"; } We can retrieve value of StaticPublicField: var fieldExpr = Expression.Field(null, typeof(TestClass), "StaticPublicField"); var labmda = Expression....

Autostash is a very useful configuration option when using rebase for local changes. Oftentimes, you may need to bring in commits from the upstream branch, but are not ready to commit just yet. However, Git does not allow a rebase to start if the working directory is not clean. Autostash to the res...

echo off cls sqlcmd.exe -S "your server name" -U "sql user name" -P "sql password" -d "name of databse" -Q "here you may write your query/stored procedure" Batch files like these can be used to automate tasks, for example to make backups of ...

It's a good practice to run NodeJS apps controlled by process managers. Process manager helps to keep application alive forever, restart on failure, reload without downtime and simplifies administrating. Most powerful of them (like PM2) have a built-in load balancer. PM2 also enables you to manage ...

The canonical way of writing code inside documentation is with the {@code } construct. If you have multiline code wrap inside <pre></pre>. /** * The Class TestUtils. * <p> * This is an {@code inline("code example")}. * <p> * You should wrap it in pre tags...

Detailed instructions on getting aspectj set up or installed.

If you want to log exceptions you can and should make use of the logging.exception(msg) method: >>> import logging >>> logging.basicConfig() >>> try: ... raise Exception('foo') ... except: ... logging.exception('bar') ... ERROR:root:bar Traceback (most rec...

This simple example shows how to start multiple threads in Java. Note that the threads are not guaranteed to execute in order, and the execution ordering may vary for each run. public class HelloMultithreading { public static void main(String[] args) { for (int i = 0; i < 10; i...

We can create a better mapper classes with extension methods, Suppose if i have some DTO classes like public class UserDTO { public AddressDTO Address { get; set; } } public class AddressDTO { public string Name { get; set; } } and i need to map to corresponding v...

cts:search( fn:doc(), cts:word-query("marklogic"))

This can be done in the following two ways - cts:search( fn:collection("first-collection"), cts:word-query("marklogic")) In this, the scope is changed from all the documents to documents in collection "first-collection" only. In the second approach, use ...

This query returns all the documents with element "company" and its value as "marklogic" cts:element-value-query(xs:QName('company'), 'marklogic'))

The following query returns the documents which have an element named "company" - cts:element-value-query( xs:QName('company'), '*', ("wildcarded"))) The following query returns the documents which have an element named "company" with an attribute named "name&...

The :last-of-type selects the element that is the last child, of a particular type, of its parent. In the example below, the css selects the last paragraph and the last heading h1. p:last-of-type { background: #C5CAE9; } h1:last-of-type { background: #CDDC39; } <div class="c...