Tutorial by Examples: e

Create a new text file named HelloWorld.java and paste this code in it: import org.eclipse.swt.*; import org.eclipse.swt.layout.*; import org.eclipse.swt.widgets.*; public class HelloWorld { public static void main(String[] args) { final Display display = new Display(); ...

Parallelism in Haskell can be expressed using the Eval Monad from Control.Parallel.Strategies, using the rpar and rseq functions (among others). f1 :: [Int] f1 = [1..100000000] f2 :: [Int] f2 = [1..200000000] main = runEval $ do a <- rpar (f1) -- this'll take a while... b <- rpa...

We can use rseq :: Strategy a to force an argument to Weak Head Normal Form: f1 :: [Int] f1 = [1..100000000] f2 :: [Int] f2 = [1..200000000] main = runEval $ do a <- rpar (f1) -- this'll take a while... b <- rpar (f2) -- this'll take a while and then some... rseq a return ...

[UIView animateWithDuration:1.0 animations:^{ someView.alpha = 0; otherView.alpha = 1; } completion:^(BOOL finished) { [someView removeFromSuperview]; }]; The carat “^” character defines a block. For example, ^{ … } is a block. More specifically, it is a blo...

<bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> <property name="locations"> <list> <value>classpath:ReleaseBundle.properties</value> </list> </bean>

try: metadata = metadata['properties'] except KeyError: pass

class CompileError(Exception): pass

Add Firebase to Your Android Project Add Firebase to your app To add Firebase to your app you'll need a Firebase project and a Firebase configuration file for your app. Create a Firebase project in the Firebase console, if you don't already have one. If you already have an existing Google proje...

A Cmd cannot be reused after calling its Run, Output or CombinedOutput methods Running a command twice will not work: cmd := exec.Command("xte", "key XF86AudioPlay") _ := cmd.Run() // Play audio key press // .. do something else err := cmd.Run() // Pause audio key press,...

Parameters can be specified in path property of route configuration 'use strict'; const Hapi = require('hapi'); // Create a server with a host and port const server = new Hapi.Server(); server.connection({ host: 'localhost', port: 8000 }); // Add a route path with url par...

TextBox txt = (TextBox)FindControl(yourtxt_Id);

Creating arrays explicitly using ArrayNew() Declare an array with the ArrayNew function. Specify the number of dimensions as an argument. ArrayNew(dimension) creates an array of 1–3 dimensions. ColdFusion arrays expand dynamically as data is added. ArrayNew() returns an array. History Intr...

To view all elements in the index change the print options that “sparsifies” the display of the MultiIndex. pd.set_option('display.multi_sparse', False) df.groupby(['A','B']).mean() # Output: # C # A B # a 1 107 # a 2 102 # a 3 115 # b 5 92 # b 8 98 # c 2 87 # c 4 104 #...

Function countUnique(r As range) As Long 'Application.Volatile False ' optional Set r = Intersect(r, r.Worksheet.UsedRange) ' optional if you pass entire rows or columns to the function Dim c As New Collection, v On Error Resume Next ' to ignore the Run-time error 457: "Th...

import xlsxwriter # create a new file workbook = xlsxwriter.Workbook('your_file.xlsx') # add some new formats to be used by the workbook percent_format = workbook.add_format({'num_format': '0%'}) percent_with_decimal = workbook.add_format({'num_format': '0.0%'}) bold = workbook.add_forma...

Character modifying functions include converting characters to upper or lower case characters, converting numbers to formatted numbers, performing character manipulation, etc. The lower(char) function converts the given character parameter to be lower-cased characters. SELECT customer_id, lower(cu...

Before Auto Layout, you always had to tell buttons and other controls how big they should be, either by setting their frame or bounds properties or by resizing them in Interface Builder. But it turns out that most controls are perfectly capable of determining how much space they need, based on their...

Big data is a term for data sets that are so large or complex that traditional data processing applications are inadequate to deal with them. Challenges include analysis, capture, data curation, search, sharing, storage, transfer, visualization, querying, updating and information privacy. A general...

<?php /* this example is based on the advanced template * This file is located in * backend/views/layouts/main.php */ use yii\helpers\Html; // here the asset is registered use cinghie\adminlte\AdminLTEAsset; AdminLTEAsset::register($this); ?> <?php $this->beginPage...

<?php /** * This file is the Asset Bundle File located in * vendor/cinghie/yii2-admin-lte/AdminLTEAsset.php * @copyright Copyright © Gogodigital Srls * @company Gogodigital Srls - Wide ICT Solutions * @website http://www.gogodigital.it * @github https://github.com/cinghie/yii...