Tutorial by Examples: b

Because data is sensitive when dealt with between two threads (think concurrent read and concurrent write can conflict with one another, causing race conditions), a set of unique objects were made in order to facilitate the passing of data back and forth between threads. Any truly atomic operation c...

In features/step_definitions/documentation.rb: When /^I go to the "([^"]+)" documentation$/ do |section| path_part = case section when "Documentation" "documentation" else raise "Unknown documentation section: #{section...

Given the following CSV-file String,DateTime,Integer First,2016-12-01T12:00:00,30 Second,2015-12-01T12:00:00,20 Third,2015-12-01T12:00:00,20 One can import the CSV rows in PowerShell objects using the Import-Csv command > $listOfRows = Import-Csv .\example.csv > $listOfRows String ...

get_defined_vars() returns an array with all the names and values of the variables defined in the scope in which the function is called. If you want to print data you can use standard functions for outputting human-readable data, like print_r or var_dump. var_dump(get_defined_vars()); Note: This...

The simple and most obvious way to use recursion to get the Nth term of the Fibonnaci sequence is this int get_term_fib(int n) { if (n == 0) return 0; if (n == 1) return 1; return get_term_fib(n - 1) + get_term_fib(n - 2); } However, this algorithm does not scale for higher ...

// Store a reference to the native method let open = XMLHttpRequest.prototype.open; // Overwrite the native method XMLHttpRequest.prototype.open = function() { // Assign an event listener this.addEventListener("load", event => console.log(XHR), false); // Call the s...

DateTime + Fixnum (days quantity) DateTime.new(2015,12,30,23,0) + 1 # => #<DateTime: 2015-12-31T23:00:00+00:00 ((2457388j,82800s,0n),+0s,2299161j)> DateTime + Float (days quantity) DateTime.new(2015,12,30,23,0) + 2.5 # => #<DateTime: 2016-01-02T11:00:00+00:00 ((2457390j,39600s,...

You can achieve a Persistent Bottom Sheet attaching a BottomSheetBehavior to a child View of a CoordinatorLayout: <android.support.design.widget.CoordinatorLayout > <!-- ..... --> <LinearLayout android:id="@+id/bottom_sheet" android:elevation...

You can realize a modal bottom sheets using a BottomSheetDialogFragment. The BottomSheetDialogFragment is a modal bottom sheet. This is a version of DialogFragment that shows a bottom sheet using BottomSheetDialog instead of a floating dialog. Just define the fragment: public class MyBottomSheet...

The BottomSheetDialog is a dialog styled as a bottom sheet Just use: //Create a new BottomSheetDialog BottomSheetDialog dialog = new BottomSheetDialog(context); //Inflate the layout R.layout.my_dialog_layout dialog.setContentView(R.layout.my_dialog_layout); //Show the dialog dialog.show(); ...

C# 7.0 adds accessors, constructors and finalizers to the list of things that can have expression bodies: class Person { private static ConcurrentDictionary<int, string> names = new ConcurrentDictionary<int, string>(); private int id = GetId(); public Person(string n...

The Runtime.exec(String ...) and Runtime.exec(String) methods allow you to execute a command as an external process1. In the first version, you supply the command name and the command arguments as separate elements of the string array, and the Java runtime requests the OS runtime system to start th...

Java Virtual Machines (JVMs) can be run with a SecurityManager installed. The SecurityManager governs what the code running in the JVM is allowed to do, based on factors such as where the code was loaded from and what certificates were used to sign the code. The SecurityManager can be installed by ...

Consider the following list comprehension Python 2.x2.7 i = 0 a = [i for i in range(3)] print(i) # Outputs 2 This occurs only in Python 2 due to the fact that the list comprehension “leaks” the loop control variable into the surrounding scope (source). This behavior can lead to hard-to-find...

To create a Behavior just extend the CoordinatorLayout.Behavior class. Extend the CoordinatorLayout.Behavior Example: public class MyBehavior<V extends View> extends CoordinatorLayout.Behavior<V> { /** * Default constructor. */ public MyBehavior() { ...

The SwipeDismissBehavior works on any View and implements the functionality of swipe to dismiss in our layouts with a CoordinatorLayout. Just use: final SwipeDismissBehavior<MyView> swipe = new SwipeDismissBehavior(); //Sets the swipe direction for this behavior. ...

You can use the CoordinatorLayout.Behavior to create dependencies between views. You can anchor a View to another View by: using the layout_anchor attribute. creating a custom Behavior and implementing the layoutDependsOn method returning true. For example, in order to create a Behavior for m...

Using a list object you can create a fully functional generic Stack with helper methods such as peeking and checking if the stack is Empty. Check out the official python docs for using list as Stack here. #define a stack class class Stack: def __init__(self): self.items = [] ...

// all variables `s` have the type `String` let s = "hi".to_string(); // Generic way to convert into `String`. This works // for all types that implement `Display`. let s = "hi".to_owned(); // Clearly states the intend of obtaining an owned obje...

Profiles permit the programmer to organize maps into classes, enhancing code readability and maintainability. Any number of profiles can be created, and added to one or more configurations as needed. Profiles can be used with both the static and instance-based APIs. public class User { public...