Tutorial by Examples: w

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...

Messages can be written with; Write-Verbose "Detailed Message" Write-Information "Information Message" Write-Debug "Debug Message" Write-Progress "Progress Message" Write-Warning "Warning Message" Each of these has a preference variable; $Ve...

Here is an example of how to define a different action for each Marker's InfoWindow click event. Use a HashMap in which the marker ID is the key, and the value is the corresponding action it should take when the InfoWindow is clicked. Then, use a OnInfoWindowClickListener to handle the event of a ...

Some Java programmers have a general aversion to throwing or propagating exceptions. This leads to code like the following: public Reader getReader(String pathname) { try { return new BufferedReader(FileReader(pathname)); } catch (IOException ex) { System.out.println(&q...

Let's have a look at various options to wait for completion of tasks submitted to Executor ExecutorService invokeAll() Executes the given tasks, returning a list of Futures holding their status and results when everything is completed. Example: import java.util.concurrent.*; import ja...

#include <pthread.h> #include <stdio.h> #include <string.h> /* function to be run as a thread always must have the same signature: it has one void* parameter and returns void */ void *threadfunction(void *arg) { printf("Hello, World!\n"); /*printf() is speci...

If you need to store images or videos in the column then we need to change the value as needed by your application max_allowed_packet = 10M M is Mb, G in Gb, K in Kb

Conditions can also be expressions: $myInput = 0 switch($myInput) { # because the result of the expression, 4, # does not equal our input this block should not be run. (2+2) { 'True. 2 +2 = 4' } # because the result of the expression, 0, # does equal our input this ...

DateTime.new(2014,10,14) # => #<DateTime: 2014-10-14T00:00:00+00:00 ((2456945j,0s,0n),+0s,2299161j)> Current time: DateTime.now # => #<DateTime: 2016-08-04T00:43:58-03:00 ((2457605j,13438s,667386397n),-10800s,2299161j)> Note that it gives the current time in your timezone ...

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(); ...

The Advanced Package Tool, aptly named the 'apt' package manager can handle the installation and removal of software on the Debian, Slackware, and other Linux Distributions. Below are some simple examples of use: update This option retrieves and scans the Packages.gz files, so that information ab...

C# 7.0 allows throwing as an expression in certain places: class Person { public string Name { get; } public Person(string name) => Name = name ?? throw new ArgumentNullException(nameof(name)); public string GetFirstName() { var parts = Name.Split(' '); ...

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 = [] ...

When you really need to script ssh connection, piping the password into the ssh command does not work (echo passw0rd | ssh host). It is because the password is not read from standard input, but directly from TTY (teleprinter, teletypewriter, Teletype for historical reasons). But there is sshpass to...

# creates a function with no arguments, which returns 3 get_three = () -> return 3 # same as above get_three = -> 3 # creates a function with arguments add_three = (num) -> num + 3 # multiple arguments, etc. add = (a, b) -> a + b

// 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...

A stream wrapper provides a handler for one or more specific schemes. The example below shows a simple stream wrapper that sends PATCH HTTP requests when the stream is closed. // register the FooWrapper class as a wrapper for foo:// URLs. stream_wrapper_register("foo", FooWrapper::class...