Tutorial by Examples: p

An XML document can contain a DTD. DTD stands for Document Type Declaration. A DTD begins with <!DOCTYPE root-element-name > where doc-element-name must match the name of the so-called document element (the one element at the top-level). <?xml version="1.0"?> <!DOCTYPE doc...

int main (void) { const int foo_readonly = 10; int *foo_ptr; foo_ptr = (int *)&foo_readonly; /* (1) This casts away the const qualifier */ *foo_ptr = 20; /* This is undefined behavior */ return 0; } Quoting ISO/IEC 9899:201x, section 6.7.3 §2: If an attempt i...

@Test public void testUpNavigation() { intending(hasComponent(ParentActivity.class.getName())).respondWith(new Instrumentation.ActivityResult(0, null)); onView(withContentDescription("Navigate up")).perform(click()); intended(hasComponent(ParentActivity.class.getName())...

Format strings may contain named placeholders that are interpolated using keyword arguments to format. Using a dictionary (Python 2.x) >>> data = {'first': 'Hodor', 'last': 'Hodor!'} >>> '{first} {last}'.format(**data) 'Hodor Hodor!' Using a dictionary (Python 3.2+) >&gt...

installing npm install web-component-tester --save-dev setting up wct.conf.js module.exports = { verbose: true, plugins: { local: { browsers: ['chrome'] } } }; running node node_modules/web-component-tester/bin/wct test/index.html <html...

A variable declared constexpr is implicitly const and its value may be used as a constant expression. Comparison with #define A constexpr is type-safe replacement for #define based compile-time expressions. With constexpr the compile-time evaluated expression is replaced with the result. For examp...

Ada is a programming language for which there exists multiple compilers. One of these compilers, and perhaps the most used, is GNAT. It is part of the GCC toolchain. It can be installed from several sources: The yearly GPL release done by AdaCore, available for free on libre site. This ver...

Note: This example is based on the Oracle JVM implementation. Built-in tools like jmap, jconsole, and jvisualvm are available in a JDK and can be used to generate and analyze heap memory dumps taken from a running JVM application. However, one option to generate a heap dump without using JDK tools ...

A method can take an array parameter and destructure it immediately into named local variables. Found on Mathias Meyer's blog. def feed( amount, (animal, food) ) p "#{amount} #{animal}s chew some #{food}" end feed 3, [ 'rabbit', 'grass' ] # => "3 rabbits chew some gra...

By default the Custom Tool property for a VB resource file is VbMyResourcesResXFileCodeGenerator. However, with this code generator the view (XAML) will not be able to access the resources. To solve this problem add Public before the Custom Tool property value. To select the Resources.resx file in ...

Open the resource file by double clicking it. Change the Access Modifier to "Public".

Bean1 @ManagedBean @ViewScoped public class Bean1 implements Serializable { /** * Just takes the given param, sets it into flash context and redirects to * page2 * * @param inputValue * @return */ public String goPage2(String inputValue) { ...

Computed observables are functions that can "watch" or "react" to other observables on the view model. The following example shows how you would display the total number of users and the average age. Note: The example below can also make use of pureComputed() (introduced in v3....

In order to add Firebase Crash Reporting to your app, perform the following steps: Create an app on the Firebase Console here. Copy the google-services.json file from your project into your in app/ directory. Add the following rules to your root-level build.gradle file in order to inc...

You can return an instance of Tuple class from your function with two template parameters as Tuple<string, MyClass>: public Tuple<string, MyClass> FunctionWith2ReturnValues () { return Tuple.Create("abc", new MyClass()); } And read the values like below: Console.Wri...

You might want to use it when parsing DateTimes from different cultures (languages), following example parses Dutch date. DateTime dateResult; var dutchDateString = "31 oktober 1999 04:20"; var dutchCulture = CultureInfo.CreateSpecificCulture("nl-NL"); DateTime.TryParse(dutch...

The pause() method is one of the easiest solution Protractor provides you to debug the code, in order to use it you have to add it in your code where you want to pause the execution.Once the execution is in paused state: You can use C (type C) to move forward. Be careful while using it, you hav...

' Making a factory with parameter to the class Public Function new_Car(wheels) Set new_Car = New Car new_Car.Wheels = wheels End Function ' Creating a car through a factory Dim semiTrailer Set semiTrailer = new_Car(18)

Conversion SpecifierType of ArgumentDescriptioni, dintprints decimaluunsigned intprints decimalounsigned intprints octalxunsigned intprints hexadecimal, lower-caseXunsigned intprints hexadecimal, upper-casefdoubleprints float with a default precision of 6, if no precision is given (lower-case used f...

This example shows the process from designing the shape you want to drawing it on a view. A specific shap is used but the concepts you learn can be applied to any shape. How to draw a Bézier path in a custom view These are the main steps: Design the outline of the shape you want. Divide the ou...