Tutorial by Examples: l

This example shows how to validate forms in Spring MVC using Bean Validation API using Java Annotations, without any xml. User will be proposed to input their registration data and validator will check it for validity. Add Dependencies First of all add the following dependencies in your project: ...

Assuming we have the following function: function foo(tab) return tab.a end -- Script execution errors out w/ a stacktrace when tab is not a table Let's improve it a bit function foo(tab) if type(tab) ~= "table" then error("Argument 1 is not a table!", 2) end ...

The standard library comes with a rich collection of lazy iterables (and libraries such as Iterators.jl provide even more). Lazy iterables can be composed to create more powerful iterables in constant time. The most important lazy iterables are take and drop, from which many other functions can be c...

Set this attribute in your manifest's or element to enable or disable multi-window display: android:resizeableActivity=["true" | "false"] If this attribute is set to true, the activity can be launched in split-screen and freeform modes. If the attribute is set to false, the...

While launching an application firstly main thread is executed. This Main thread handles all the UI concept of application. If we want to run long the task in which we don't need the UI then we use thread for running that task in background. Here is the example of Thread which describes blow: new ...

Format and Usage: echo %cd% %cd% is a system variable that contains the current directory path

Usage to list all folders and files in the current directory: dir A target directory can also be specified: dir C:\TargetPath When specifying a path with spaces, it must be surrounded by quotes: dir "C:\Path With Spaces"

Install the NLog.Config package. (NuGet 3 users should install NLog and add the config manually.) Write to logger: using NLog; public class MyClass { private static Logger logger = LogManager.GetCurrentClassLogger(); public void MyMethod1() { logger.Trace("Sample trace mess...

The following should be added to your global .gitconfig file [merge] tool = kdiff3 [mergetool "kdiff3"] path = D:/Program Files (x86)/KDiff3/kdiff3.exe keepBackup = false keepbackup = false trustExitCode = false Remember to set the path property to point to th...

[diff] tool = kdiff3 guitool = kdiff3 [difftool "kdiff3"] path = D:/Program Files (x86)/KDiff3/kdiff3.exe cmd = \"D:/Program Files (x86)/KDiff3/kdiff3.exe\" \"$LOCAL\" \"$REMOTE\"

[merge] tool = intellij [mergetool "intellij"] cmd = cmd \"/C D:\\workspace\\tools\\symlink\\idea\\bin\\idea.bat merge $(cd $(dirname "$LOCAL") && pwd)/$(basename "$LOCAL") $(cd $(dirname "$REMOTE") && pwd)/$(basename "$REM...

[diff] tool = intellij guitool = intellij [difftool "intellij"] path = D:/Program Files (x86)/JetBrains/IntelliJ IDEA 2016.2/bin/idea.bat cmd = cmd \"/C D:\\workspace\\tools\\symlink\\idea\\bin\\idea.bat diff $(cd $(dirname "$LOCAL") && pwd)/$(ba...

In C++, looping through a sequence container c can be done using indexes as follows: for(size_t i = 0; i < c.size(); ++i) c[i] = 0; While simple, such writings are subject to common semantic errors, like wrong comparison operator, or wrong indexing variable: for(size_t i = 0; i <= c.size(...

First, add the following permissions to the manifest of your project in order to enable device storage access: <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" /> ...

When updating multiple rows with different values it is much quicker to use a bulk update. UPDATE people SET name = (CASE id WHEN 1 THEN 'Karl' WHEN 2 THEN 'Tom' WHEN 3 THEN 'Mary' END) WHERE id IN (1,2,3); By bulk updating only one query can be sent to the ser...

To Convert you date in dd/MM/yyyy format into milliseconds you call this function with data as String public long getMilliFromDate(String dateFormat) { Date date = new Date(); SimpleDateFormat formatter = new SimpleDateFormat("dd/MM/yyyy"); try { date = formatter.p...

Turn on Debug from menu - view > debug it return some error during start debug, show pop out notification and open launch.json from this popup notification It is just because of launch.json not set for your workspace. copy and paste below code in to launch.json //new launch.json your old lau...

If the response has already been created and set on the response object outside the regular rendering process (e.g., in an observer), the 'no-renderLayout' flag can be set on the action controller using Mage::app()->getFrontController()->getAction()->setFlag('','no-renderLayout'); ...

Mage_Core_Block_Template Mage_Core_Block_Text_List Mage_Core_Block_Messages Mage_Core_Block_Text_Tag Mage_Core_Block_Text Mage_Page_Block_Template_Links All blocks are either structural blocks or All blocks are either structural blocks or content blocks. Example: core/text_list Example ...

From an action controller: $this->getLayout()->getBlock('head')->getTemplate(); /** * Get specified tab grid */ public function gridOnlyAction() { $this->_initProduct(); $this->getResponse()->setBody( $this->getLayout()->createBlock('adminhtml/catalog_product_edit_...