Tutorial by Examples: d

Download the latest JAR or grab via Maven: <dependency> <groupId>com.squareup.okio</groupId> <artifactId>okio</artifactId> <version>1.12.0</version> </dependency> or Gradle: compile 'com.squareup.okio:okio:1.12.0'

Decoding the chunks of a PNG file demonstrates Okio in practice. private static final ByteString PNG_HEADER = ByteString.decodeHex("89504e470d0a1a0a"); public void decodePng(InputStream in) throws IOException { try (BufferedSource pngSource = Okio.buffer(Okio.source(in))) { Byt...

ByteStrings and Buffers Okio is built around two types that pack a lot of capability into a straightforward API: ByteString is an immutable sequence of bytes. For character data, String is fundamental. ByteString is String's long-lost brother, making it easy to treat binary data as a value. This c...

Method 1 Go to your unit test class in the unit test project Write a unit test [Testclass] public class UnitTest1 { [TestMethod] public void TestMethod1() { //Arrange ApplicationToTest.Calc ClassCalc = new ApplicationToTest.Calc(); int expectedResul...

To see you unit tests go to Test -> Windows -> Test Explorer (Figure 1) This will open an overview of all the tests in the application (Figure 2) In the figure above you can see that the example has one unit test and it hasn’t been run yet You can double-click on a tes...

To see you unit tests go to Test -> Windows -> Code Coverage Results (Figure 1) It will open the following window (Figure 2) The window is now empty Go to the Test menu -> Analyze Code Coverage (Figure 3) The tests will now be run as well (See the results in the T...

Starting with Android 3.1 all applications, upon installation, are placed in a stopped state. While in stopped state, the application will not run for any reason, except by a manual launch of an activity, or an explicit intent that addresses an activity ,service or broadcast. When writing system ap...

Override Pagination Style: Every available pagination style can be overridden by creating a new class that inherits from one of the available styles and then alters its parameters: class MyPagination(PageNumberPagination): page_size = 20 page_size_query_param = 'page_size' max_page...

We can perform a GROUP BY ... COUNT or a GROUP BY ... SUM SQL equivalent queries on Django ORM, with the use of annotate(), values(), order_by() and the django.db.models's Count and Sum methods respectfully: Let our model be: class Books(models.Model): title = models.CharField() ...

Lets assume that we have a complex api, with many generic views and some generic viewsets. We want to enable PageNumberPagination to every view, except one (either generic view or viewset, does not make a difference) for which we want a customized case of LimitOffsetPagination. To achieve that we n...

A generalization of std::condition_variable, std::condition_variable_any works with any type of BasicLockable structure. std::cv_status as a return status for a condition variable has two possible return codes: std::cv_status::no_timeout: There was no timeout, condition variable was notified st...

Function definition: def run_training(train_X, train_Y): Inputs variables: X = tf.placeholder(tf.float32, [m, n]) Y = tf.placeholder(tf.float32, [m, 1]) Weight and bias representation W = tf.Variable(tf.zeros([n, 1], dtype=np.float32), name="weight") b = tf.Variable(tf.zeros([...

def read_data(): global m, n m = 50 n = 1 train_X = np.array( Internal data for the array ).astype('float32') train_Y = np.array( Internal data for the array ).astype('float32') return train_X, train_Y

Installing The Node Module You can install this module by running the command below in your project directory: npm install twilio Sending Your Message const accountSID = ''; // Obtained from the Twilio Console const authToken = ''; // Obtained from the Twilio Console const client = requi...

This is an advanced subject, do not attempt without first understanding the other examples of this page. As stated in the official Django Rest Framework on pagination: Pagination is only performed automatically if you're using the generic views or viewsets. If you're using a regular APIView, you...

By using a module loader like Webpack we can benefit the built-in module system available in ES6 (as well as in TypeScript). We can then use the import and export features that allow us to specify what pieces of code can we are going to share between different parts of the application. When we then...

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Requirements: Add following references to the project: Microsoft ActiveX Data Objects 2.8 Library Microsoft ActiveX Data Objects Recordset 2.8 Library Declare variables Private mDataBase As New ADODB.Connection Private mRS As New ADODB.Recordset Private mCmd As New ADODB.Command...

Then we finally pass the query to the writer to delete documents that match the query: See the answer to this question. See the API here // Remove the document by using a multi key query: // http://www.avajava.com/tutorials/lessons/how-do-i-combine-queries-with-a-boolean-query.html indexWriter....

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