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The value of an entry widget can be obtained with the get method of the widget: name_entry = tk.Entry(parent) ... name = name_entry.get() Optionally, you may associate an instance of a StringVar, and retrieve the value from the StringVar rather than from the widget: name_var = tk.StringVar() ...

// A simple class hierarchy that uses the visitor to add functionality. // class VehicleVisitor; class Vehicle { public: // To implement the visitor pattern // The class simply needs to implement the accept method // That takes a reference to a visitor object tha...

The visitor Pattern can be used to traverse structures. class GraphVisitor; class Graph { public: class Node { using Link = std::set<Node>::iterator; std::set<Link> linkTo; public: void accept(GraphVisito...

Since Java lambdas are closures, they can "capture" the values of variables in the enclosing lexical scope. While not all lambdas capture anything -- simple lambdas like s -> s.length() capture nothing and are called stateless -- capturing lambdas require a temporary object to hold the...

Modules can be required without using relative paths by putting them in a special directory called node_modules. For example, to require a module called foo from a file index.js, you can use the following directory structure: index.js \- node_modules \- foo |- foo.js \- package.json ...

<?php use Symfony\Bundle\FrameworkBundle\Controller\Controller; use Symfony\Component\HttpFoundation\Request; class TestController extends Controller { //Inject Request HTTP Component in your function then able to exploit it public function myFunctionAction(Request $request) {...

Objective-C UILabel *label = [[UILabel alloc] init]; label.highlighted = YES; label.highlightedTextColor = [UIColor redColor]; Swift let label = UILabel() label.highlighted = true label.highlightedTextColor = UIColor.redColor() Swift 3 let label = UILabel() label.isHighlighted = true ...

If you like to show the dialog without the close button (i.e. the x button in the upper-right corner of the dialog), perhaps because you want to force the user to select one of options or buttons in the dialog itself: 1- Give your dialog a CSS class: $("#selector").dialog({ closeOnE...

Download: To set up WebSphere Liberty, download the latest zip from WASdev.net. Layout: Once you have the zip, extract it to any location on your file system. The basic layout of a Liberty install is the following: wlp/ # WLP_INSTALL_DIR bin/ # location of scrip...

Usage: $ nodetool repair [-h | -p | -pw | -u] <flags> [ -- keyspace_name [table_name]] Default Repair Option $ nodetool repair This command will repair the current node's primary token range (i.e. range which it owns) along with the replicas of other token ranges it has in all tables a...

Apps Script: //Triggered when the page is navigated to, serves up HTML function doGet(){ var template = HtmlService.createTemplateFromFile('index'); return template.evaluate() .setTitle('Example App') .setSandboxMode(HtmlService.SandboxMode.IFRAME); } //Called from the cli...

System.Obsolete is an attribute that is used to mark a type or a member that has a better version, and thus should not be used. [Obsolete("This class is obsolete. Use SomeOtherClass instead.")] class SomeClass { // } In case the class above is used, the compiler will give the w...

Nesting is great for keeping related selectors together to make it easier for future developers to understand your code. The parent selector, represented by an ampersand ("&") can help do that in more complex situations. There are several ways its can be used. Create a new selector th...

This are the tools you need to build SFML for Android on a Windows Machine CMake Git Android SDK Android NDK Apache Ant MinGW (msys basic) Java jre Java jdk Android USB Driver (Download: http://adbdriver.com/ ) Make sure you've installed all tools (Tools -> Android SDK Tools / Platf...

Add following Paths to the PATH-Enviromentvariable [Path to CMake]\bin [Path to Git]\bin [Path to SDK]\tools [Path to SDK]\platform-tools [Path to NDK] [Path to ANT]\bin [Path to MinGW]\bin [Path to MinGW]\msys\1.0\bin [Path to Java jre]\bin [Path to Java jdk]\bin Make sure you use ba...

Clone the SFML Repository from Github. Enter following comands in a cmd window: git clone https://github.com/SFML/SFML.git SFML If you already downloaded SFML before you can just use the existing one. Create some folders for the build-files cd SFML mkdir build && cd build mkdir ar...

You can find the Android Sample in [SFML_ROOT]\examples\android You can copy it to leave the SFML repository in it's original state. Open cmd.exe in the sample location. To get a list of all available Android build targets: android list target Run Update Project for the Sample: android upda...

import java.awt.AWTException; import java.awt.Robot; import java.awt.event.KeyEvent; public class KeyBoardExample { public static void main(String[] args) { try { Robot robot = new Robot(); robot.delay(3000); robot.keyPress(KeyEvent.VK_Q); //...

Mouse movement: import java.awt.Robot; public class MouseClass { public static void main(String[] args) throws Exception { Robot robot = new Robot(); // SET THE MOUSE X Y POSITION robot.mouseMove(300, 550); } } Press left/right button of mouse: import java.awt....

Swift 2 import UIKit extension UIDevice { var modelName: String { var systemInfo = utsname() uname(&systemInfo) let machineMirror = Mirror(reflecting: systemInfo.machine) let identifier = machineMirror.children.reduce("") { identifier, ele...