Static initializer in Java

Static initializer in Java

My question is about one particular usage of static keyword. It is possible to use static keyword to cover a code block within a class which does not belong to any function. For example following code compiles:public class Test { private

What is the Java string pool and how is “s” different from new String(“s”)? [duplicate]

What is the Java string pool and how is “s” different from new String(“s”)? [duplicate]

This question already has an answer here: What is the difference between “text” and new String(“text”)? 10 answers What is mean

How do I create a transparent Activity on Android?

How do I create a transparent Activity on Android?

I want to create a transparent Activity on top of another activity.How can I achieve this? 1:Add the following style in your res/values/styles.xml file (if you don’t have one, create it.) Here’s a complete file:<?xml version="1.0" encodi

Split comma-separated column into separate rows

Split comma-separated column into separate rows

I have a data frame, like so:data.frame(director = c("Aaron Blaise,Bob Walker", "Akira Kurosawa", "Alan J. Pakula", "Alan Parker", "Alejandro Amenabar", "Alejandro Gonzalez Inarritu", "Alejand

How to install a python library manually

How to install a python library manually

I built quickfix engine (http://www.quickfixengine.org/) for one of my tasks and also built in python support for it.Unfortunately this is a multi user env and I dont have access to the python installation path. Thus the make install comman

qplot and anti-aliasing in R

qplot and anti-aliasing in R

I am using ggplot2 library and am working with the qplot commandI know I can save my output as an anti-aliased image file by using the following command after my qplot ggsave(file="filename.png")But how about my LCD display? is there any wa

Understanding why “pimp my library” was defined that way in Scala

Understanding why “pimp my library” was defined that way in Scala

If I want to add a method to a class in Scala, I need to do something like:class RichFoo(f: Foo) { def newMethod = f.bar()}object RichFoo { implicit def foo2Rich(f: Foo) = new RichFoo(f)}Then f.newMethod will result in creation of RichFoo

ImageView.setImageURI does NOT work when trying to assign a R.drawable.X Uri

ImageView.setImageURI does NOT work when trying to assign a R.drawable.X Uri

is related to:Need suggestion about a mixed "Uri / int id" images ambientnow my problem is that:ImageView imgView=(ImageView)findViewById(R.id.imgView);Uri imgUri=Uri.parse("android.resource://my.package.name/"+R.drawable.image);imageView.s

Dotless failing to compile ; in Bootstrap 3 less source

Dotless failing to compile ; in Bootstrap 3 less source

I use dotless 1.3.1.0 compiling less-files. This worked fine with bootstrap 2.x, but after switching to bootstrap 3.0.0 (downloaded the source from here: http://getbootstrap.com/getting-started/), I suddenly get this error: Expected ')' bu

Error in Visual Studio 2015 When Add New WebForm

Error in Visual Studio 2015 When Add New WebForm

When I add new WebForm to my project, I get the following error: Could not load file or assembly 'Microsoft.VisualStudio.JSLS,Version=14.0.0.0 , Culture=neutral , PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies.the system ca

Using @ComponentScan or  with only one class

Using @ComponentScan or with only one class

I'm maintaining a project with two set of main packages, the project is using Spring and Spring MVC, one of these packages contains several controllers and is scanned using XML configuration ().The problem is that there is a single class in

What's the purpose of the “__package__” attribute in Python?

What's the purpose of the “__package__” attribute in Python?

All I want to know is what exactly does __package__ mean? Didn't find any explanation in the official doc, even on SO.If you could provide some examples I would be very happy. 1:See the PEP 366 and import system reference documentation:

HttpConfiguration missing assembly

HttpConfiguration missing assembly

I am building a site using MVC4. I couldn't even begin that I am having a strange error. This is my code:using System;using System.Collections.Generic;using System.Linq;using System.Web.Http;namespace MyProject{ public static class WebAp

How to purge tomcat's cache when deploying a new .war file? Is there a config setting?

How to purge tomcat's cache when deploying a new .war file? Is there a config setting?

I have a simple hello, world servlet application that I am just playing around with, and pushing it out to my tomcat server on a VPS.When I make a change to my code, and deploy it, tomcat doesn't serve the newly published code (even after s

'Newtonsoft.Json' already has a dependency defined for 'Microsoft.CSharp'

'Newtonsoft.Json' already has a dependency defined for 'Microsoft.CSharp'

I am installing NewtonSoft.Json for parsing Json in .Net application. When I am using VS 2012, it can not be installed via NuGet. This is the error I have got:'Newtonsoft.Json' already has a dependency defined for 'Microsoft.CSharp'I tried

OS X package installation issue: Can't find gfortran 4.8 to build package

OS X package installation issue: Can't find gfortran 4.8 to build package

I have an issue on mac os x El Capitan with Xcode 7. I'm using fortran 6.1, downloaded from https://gcc.gnu.org/wiki/GFortranBinaries. I tried degrading to fortran 4.8. but that didn't help me. Following is the error: installing source pac

How to manually symbolicate a crash log with atos

How to manually symbolicate a crash log with atos

After searching all over the internet to find a way to symbolicate my crash logs I received from Apple, I finally figured out how to use the atos command in terminal to symbolicate the crash logs. I have the dSYM file, the .app file and the

PreRenderView incrementally called on every postback

PreRenderView incrementally called on every postback

I have an issue with the order and number of executions of an f:event type="preRenderView".During my search here I found as usual answers from BalusC in this and this post related to my problem - still it leaves two questions for me:When I

Connecting to websocket with PHP client

Connecting to websocket with PHP client

I'm trying to connect a PHP-based client to a websocket server.Here's the code I have been using which has been widely published on different forums. But for some reason I just cannot get it to work.Any help would be appreciated.$host = 'h

Eclipse plugin for measuring lines of code

Eclipse plugin for measuring lines of code

I'm running Eclipse Helios (3.6) and was wondering if there is a nice plugin out there that will count the number of logical lines of code in a java source file. By logical, I meanif (j > 6) { j--;}In other words, 2 logical lines of code

Good single sign-on solution for Laravel

Good single sign-on solution for Laravel

I plan to introduce a single sign-on (SSO) to my Laravel 5 applications. Basically, I have two websites on different domains. The idea is simple: if I'm already authenticated on one of them, I don't need to sing in on the other.I've been lo

Rcpp - Use multiple C++ functions in file referenced by sourceCpp?

Rcpp - Use multiple C++ functions in file referenced by sourceCpp?

I hope this isn't too obvious, as I've searched all day and can't find the answer.Say I have the following R file: library(Rcpp)sourceCpp("cfile.cpp")giveOutput(c(1,2,3))And it compiles the following C++ file:#include using namespace Rcpp;/

Java String import

Java String import

I have one doubt. When we use ArrayList or HashMap in Java, we have to import java.util.ArrayList or java.util.HashMap. But when we use String, it doesn't require the import statement. Can anyone clarify, why? 1:String is present in pack

How do I add a library in Eclipse?

How do I add a library in Eclipse?

I downloaded the Gson library from http://code.google.com/p/google-gson/.The archive contains the following jar files:google-gson-1.3/gson-1.3-javadoc.jargoogle-gson-1.3/gson-1.3.jargoogle-gson-1.3/gson-1.3-sources.jar How do I set my Eclip

Is it safe for more than one goroutine to print to stdout?

Is it safe for more than one goroutine to print to stdout?

I have multiple goroutines in my program, each of which makes calls to fmt.Println without any explicit synchronization. Is this safe (i.e., will each line appear separately without data corruption), or do I need to create another goroutine