In Python 2, what is the difference between '/' and '//' when used for division?

In Python 2, what is the difference between '/' and '//' when used for division?

Is there a benefit to using one over the other? In Python 2, they both seem to return the same results:>>> 6/32>>> 6//32 1:In Python 3.0, 5 / 2 will return 2.5 and 5 // 2 will return 2. The former is floating point division, and the lat

How do getters and setters work?

How do getters and setters work?

I'm from the php world. Could you explain what getters and setters are and could give you some examples? 1:Tutorial is not really required for this. Read up on encapsulationprivate String myField; //"private" means access to this is rest

How to trigger event in JavaScript?

How to trigger event in JavaScript?

I have attached an event to a text box using addEventListener. It works fine. My problem arose when I wanted to trigger the event programmatically from another function. How can I do it? 1:You can use fireEvent on IE 8 or lower, and w3c'

What is a StackOverflowError?

What is a StackOverflowError?

What is a StackOverflowError, what causes it, and how should I deal with them? 1:Parameters and local variables are allocated on the stack (with reference types the object lives on the heap and a variable references that object). The sta

Providing white space in a Swing GUI

Providing white space in a Swing GUI

A GUI with no white space appears 'crowded'. How can I provide white space without resorting to explicitly setting the position or size of components?­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­

TensorFlow: Dst tensor is not initialized

TensorFlow: Dst tensor is not initialized

The MNIST For ML Beginners tutorial is giving me an error when I run print(sess.run(accuracy, feed_dict={x: mnist.test.images, y_: mnist.test.labels})). Everything else runs fine. Error and trace:InternalErrorTraceback (most recent call las

phantomJS - Pass Argument to the JS File

phantomJS - Pass Argument to the JS File

Right now I'm using the following command to run phantomJSexec('./phantomjs table.js',$op,$er);table.jsvar page = require('webpage').create();page.open('table.php', function () { page.render('table.png'); phantom.exit();});This serves

Configuring Gradle with Kotlin

Configuring Gradle with Kotlin

I am trying to use kotlin with gradle, but I am unable to succesfully create a project with Intellij Idea 15.I've create simple project with two modules hello-java and hello-kotlin. hello-java is plain java project and it is compiling and r

How to run single Java file from a project in Eclipse?

How to run single Java file from a project in Eclipse?

I want to run one Java file from a project in Eclipse. There is code to insert into database in that Java file, I want to check from that single file whether its working or not. Is there any way to run a single Java file from a project?

Rewrite root address to a subdirectory in nginx

Rewrite root address to a subdirectory in nginx

I'm converting my mediawiki site to use nginx as a frontend for static files with apache on the backend for php. I've gotten everything working so far except for when I view the root directory "example.com" it tries to serve a directory lis

Why are generic and non-generic structs treated differently when building expression that lifts oper

Why are generic and non-generic structs treated differently when building expression that lifts oper

This looks like a bug in lifting to null of operands on generic structs.Consider the following dummy struct, that overrides operator==:struct MyStruct{ private readonly int _value; public MyStruct(int val) { this._value = val; } pu

Control for displaying multiline text?

Control for displaying multiline text?

I need to display a multiline, read-only text - which control can be used for that? It should only dislay the text, like a Label does, however Label does not support multiline?Thanks for any hint :-) 1:You can display multi-line read-onl

Python, how to pass an argument to a function pointer parameter?

Python, how to pass an argument to a function pointer parameter?

I only just started learning Python and found out that I can pass a function as the parameter of another function. Now if I call foo(bar()) it will not pass as a function pointer but the return value of the used function. Calling foo(bar) w

System.out.printf vs System.out.format

System.out.printf vs System.out.format

Are System.out.printf and System.out.format totally the same or perhaps they differ in somehow? 1:System.out is a PrintStream, and quoting the javadoc for PrintStream.printf An invocation of this method of the form out.printf(l, forma

How to XML configure Spring bean for constructor injection when bean has varargs constructor

How to XML configure Spring bean for constructor injection when bean has varargs constructor

Is there a way to write a Spring bean in XML so that it uses constructor injection when that constructor has a varargs parameter type? IE, is there a way to specify an array the way you can specify a list? For instance:class MyClass { My

Upload photos to Facebook Album from an app

Upload photos to Facebook Album from an app

I've used 'req_perms' => 'publish_stream,status_update'The error I'm getting is Fatal error: Uncaught CurlException: 26: failed creating formpost data thrown in facebook.php on line 589My upload code:$facebook->setFileUploadSupport(true);$

Custom hadoop key and value : How to write CompareTo() Method

Custom hadoop key and value : How to write CompareTo() Method

I need to emit a 2D double array as key and value from mapper. There are questions posted in Stack Overflow, but they are not answered.I am doing some of the matrix multiplication in a given dataset, and after that I need to emit the value

How to create a simple spark graphframe using java?

How to create a simple spark graphframe using java?

Basically I am a java developer & now I got a chance to work on Spark & I gone through basics of the Spark api like what is SparkConfig, SparkContaxt, RDD, SQLContaxt, DataFrame, DataSet & then I able to perform some simple simple transform

Implementing Singleton in Java

Implementing Singleton in Java

Please note that I have gone through the below thread :What is an efficient way to implement a singleton pattern in Java?To summarize, there are important considerations while writing a singleton :Multiple threads access must not lead to mu

C++ function decorator

C++ function decorator

I am looking for a way to decorate functions or lambdas in C++. The goal is to do something before and after the function call. As I've seen the closest thing to use is std::function but it needs to have the types of its arguments.class Fun

Meteor in Git Shell (mingw)

Meteor in Git Shell (mingw)

I am trying to do the tutorial for Meteor JS but I can't get it to work properly using the Git Shell that comes with Github for Windows. It can't find the meteor command. It works in cmd and it is in the Windows environment path. What am I

AES encrypt with openssl command line tool, and decrypt in Java

AES encrypt with openssl command line tool, and decrypt in Java

I have a bash script that uses the openssl tool to encrypt.#!/bin/bashkey128="1234567890123456"iv="1234567890123456"openssl enc -aes-128-cbc -in test -out test.enc -K $key128 -iv $ivAnd Java code that tries to decrypt the file produced by t

Finding out Windows service's running process name .NET 1.1

Finding out Windows service's running process name .NET 1.1

We are using a badly written windows service, which will hang when we are trying to Stop it from code. So we need to find which process is related to that service and kill it. Any suggestions? 1:WMI has this information: the Win32_Servic

Settings.Default. always returns default value instead of value in persistant storage (XML file)

Settings.Default. always returns default value instead of value in persistant storage (XML file)

I recently wrote a DLL in C# (.Net 2.0) which contains a class that requires an IP address. A co-worker of mine altered the class to retrieve the IP from a ".dll.config" (XML) file -- This apparently is automatically generated by the "Appli

Application started by Process.Start() isn't getting arguments

Application started by Process.Start() isn't getting arguments

Using C#, I am trying to pass command-line arguments to a new process using Process.Start():string path = @"C:\Demo\Demo.exe";string arguments = "one two three";ProcessStartInfo startInfo = new ProcessStartInfo { FileName = path,