What causes and what are the differences between NoClassDefFoundError and ClassNotFoundException?

What causes and what are the differences between NoClassDefFoundError and ClassNotFoundException?

What is the difference between NoClassDefFoundError and ClassNotFoundException?What causes them to be thrown? How can they be resolved?I often encounter these throwables when modifying existing code to include new jar files.I have hit them

What is the difference between ++i and i++?

What is the difference between ++i and i++?

In C, what is the difference between using ++i and i++, and which should be used in the incrementation block of a for loop? 1:++i will increment the value of i, and then return the incremented value. i = 1; j = ++i; (i is 2, j is 2)i++ w

Variable might not have been initialized error

Variable might not have been initialized error

When i try to compile this: public static Rand searchCount (int[] x) { int a ; int b ; ... for (int l= 0; l

How to download and save a file from Internet using Java?

How to download and save a file from Internet using Java?

There is an online file (such as http://www.example.com/information.asp) I need to grab and save to a directory. I know there are several methods for grabbing and reading online files (URLs) line-by-line, but is there a way to just download

Local variables in Python nested functions

Local variables in Python nested functions

Okay, bear with me on this, I know it's going to look horribly convoluted, but please help me understand what's happening.from functools import partialclass Cage(object): def __init__(self, animal): self.animal = animaldef gotimes

How can I obfuscate (protect) JavaScript? [closed]

How can I obfuscate (protect) JavaScript? [closed]

I want to make a JavaScript application that's not open source, and thus I wish to learn how to can obfuscate my JS code? Is this possible? 1:Obfuscation:Try YUI Compressor. It's a very popular tool, built, enhanced and maintained by th

Why does Date.parse give incorrect results?

Why does Date.parse give incorrect results?

Case One:new Date(Date.parse("Jul 8, 2005"));Output:Fri Jul 08 2005 00:00:00 GMT-0700 (PST)Case Two:new Date(Date.parse("2005-07-08"));Output:Thu Jul 07 2005 17:00:00 GMT-0700 (PST)Why is the second parse incorrect? 1:Until the 5th editi

Error: Couldn't find preset “react” when installed using npm install --global babel-preset-reac

Error: Couldn't find preset “react” when installed using npm install --global babel-preset-reac

I installed Babel CLI (version 6) using npm install --global babel-cli. I then install react preset using npm install --global babel-preset-react. I then setup the .babelrc file in the project directory to{ "presets": ["react"]}When I t

maven install error - only whitespace content allowed before start tag and not \\u0

maven install error - only whitespace content allowed before start tag and not \\u0

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-install-plugin:2.3.1:install (default-install) on project ecommerce-web: Failed to install metadata com.app:ecommerce-web/maven-metadata.xml: Could not parse metadata C:\Users\ad

Spark-submit ClassNotFound exception

Spark-submit ClassNotFound exception

I'm having problems with a "ClassNotFound" Exception using this simple example:import org.apache.spark.SparkContextimport org.apache.spark.SparkContext._import org.apache.spark.SparkConfimport java.net.URLClassLoaderimport scala.util.Marsha

Why do I have to copy “this” when using LINQ in a struct (and is it OK if I do)?

Why do I have to copy “this” when using LINQ in a struct (and is it OK if I do)?

The code belows contains a simple LINQ query inside an immutable struct. struct Point{ static readonly List NeighborIndexes; //and other readonly fields! public IEnumerable GetEdges() { return from neighborIndex in Neighbor

How to automatically resolve merge conflicts by selecting the remote version in Git?

How to automatically resolve merge conflicts by selecting the remote version in Git?

Is there any way to specify to git to automatically resolve the conflicts for a pack of files by taking the remote version for each of them? For instance, to take the remote version of each files in a certain directory? 1:git-merge seems

xaml what is “local:”?

xaml what is “local:”?

What is local: in XAML, and what parameters in a C# class can be called local: ?In some code I am looking at, I see xmlns:local="clr-namespace:AskLocal". What does this mean? 1:In XAML the local alias is commonly used when referring to t

What does “three dots” in Python mean when indexing what looks like a number?

What does “three dots” in Python mean when indexing what looks like a number?

What is the meaning of x[...] below?a = np.arange(6).reshape(2,3)for x in np.nditer(a, op_flags=['readwrite']): x[...] = 2 * x 1:While the proposed duplicate What does the Python Ellipsis object do? answers the question in a general p

How to change a application Default Icon in PhoneGap [duplicate]

How to change a application Default Icon in PhoneGap [duplicate]

This question already has an answer here: How to add app icon within phonegap projects? 13 answers I am using phone gap do build an application for mul

Upload to heroku without git

Upload to heroku without git

Im making a tiny web app, really just for personal testing, the app is built with php / mysql, i plan to host it on heroku, but i was wondering is it possible to host stuff on heroku without pushing from git. I am not too keen on using git

attach() inside function

attach() inside function

I'd like to give a params argument to a function and then attach it so that I can use a instead of params$a everytime I refer to the list element a.run.simulationIs there a problem with this? If I have defined a global variable named c and

No plugin found for prefix 'jetty' in the current project

No plugin found for prefix 'jetty' in the current project

I have added jetty mvn plugin code in my project pom.xml. org.mortbay.jetty maven-jetty-plugin 6.1.26 /redkites start-jetty deploy run 10 true When I use commands s

What account does IIS Express run under?

What account does IIS Express run under?

I need to get my dev machine to read a certificate from the local machine storeto do this I need to run winhttpcertcfg.exe and specify the account I want to elevateWhat would this account be for IIS express?(For IIS it would be the IWAM_Mac

profiling a method of a class in Python using cProfile?

profiling a method of a class in Python using cProfile?

I'd like to profile a method of a function in Python, using cProfile. I tried the following:import cProfile as profile# inside class method...profile.run("self.myMethod()", "output_file")but it does not work. How can I call a self.method w

Javascript not loading due to net::ERR_CONTENT_LENGTH_MISMATCH

Javascript not loading due to net::ERR_CONTENT_LENGTH_MISMATCH

I've got an app that runs fine locally, but barfs in production. (Classic problem, right?)In production, the JS isn't firing correctly. When I open up the browser console, I see this error: net::ERR_CONTENT_LENGTH_MISMATCHWhen I look in t

Get value from Date picker

Get value from Date picker

I want to get the value from JavaFX datepicker and store the value as Date Object:final DatePicker datePicker = new DatePicker(LocalDate.now());Date date = datePicker.getValue();grid.add(datePicker, 1, 9);Can you tell me how I can convert L

Elegant solution to implement timeout for bash commands and functions

Elegant solution to implement timeout for bash commands and functions

I wrote a function to run commands, which takes two args 1st a command 2nd timeout in seconds:#! /bin/bashfunction run_cmd { cmd="$1"; timeout="$2" grep -qP "^\d+$" $exitfile) & start=$(date +%s) while true; do pid=$(job

Entity Framework Code First DateTime field update on modification

Entity Framework Code First DateTime field update on modification

I have the following entity:public class User{ public int UserId { get; set; } public string UserName { get; set; } public string UserAddress { get; set; } public DateTime CreateDate { get; set; } public DateTime? UpdateDate

Using @font-face with an SVG font embedded in the current HTML page

Using @font-face with an SVG font embedded in the current HTML page

I have a standalone HTML document I want to distribute, without any external dependencies. I'm using a non-standard font in this document that only some of my users will have installed.For those users that do not have the font installed, I