You are creating those bytes objects yourself:

item['title'] = [t.encode('utf-8') for t in title]
item['link'] = [l.encode('utf-8') for l in link]
item['desc'] = [d.encode('utf-8') for d in desc]
items.append(item)

Each of those t.encode(), l.encode() and d.encode() calls creates a bytes string. Do not do this, leave it to the JSON format to serialise these.

Next, you are making several other errors; you are encoding too much where there is no need to. Leave it to the json module and the standard file object returned by the open() call to handle encoding.

You also don't need to convert your items list to a dictionary; it'll already be an object that can be JSON encoded directly:

class W3SchoolPipeline(object):    
    def __init__(self):
        self.file = open('w3school_data_utf8.json', 'w', encoding='utf-8')

    def process_item(self, item, spider):
        line = json.dumps(item) + '\n'
        self.file.write(line)
        return item

I'm guessing you followed a tutorial that assumed Python 2, you are using Python 3 instead. I strongly suggest you find a different tutorial; not only is it written for an outdated version of Python, if it is advocating line.decode('unicode_escape') it is teaching some extremely bad habits that'll lead to hard-to-track bugs. I can recommend you look at Think Python, 2nd edition for a good, free, book on learning Python 3.

Set up a virtualenv:

% curl -kLso /tmp/get-pip.py https://bootstrap.pypa.io/get-pip.py 
% sudo python /tmp/get-pip.py

These commands install pip into the global site-packages directory.

% sudo pip install virtualenv

and ditto for virtualenv:

% mkdir -p ~/.virtualenvs

I like my virtualenvs under one tree in my home directory called .virtualenvs

% virtualenv ~/.virtualenvs/lxmltest

Creates a virtualenv.

% . ~/.virtualenvs/lxmltest/bin/activate

Removes the need to specify the full path to pip/python in this virtualenv.

% pip install lxml

Alternatively execute ~/.virtualenvs/lxmltest/bin/pip install lxml if you chose not to follow the previous step. Note, I'm not sure how far along you are, so some of these steps can be safely skipped. Of course, if you mess something up, you can always rm -Rf ~/.virtualenvs/lxmltest and start again from a new virtualenv.

how can scrapy be used to scrape this dynamic data so that I can use it?

I wonder why no one has posted the solution using Scrapy only.

Check out the blog post from Scrapy team SCRAPING INFINITE SCROLLING PAGES . The example scraps http://spidyquotes.herokuapp.com/scroll website which uses infinite scrolling.

The idea is to use Developer Tools of your browser and notice the AJAX requests, then based on that information create the requests for Scrapy.

import json
import scrapy


class SpidyQuotesSpider(scrapy.Spider):
    name = 'spidyquotes'
    quotes_base_url = 'http://spidyquotes.herokuapp.com/api/quotes?page=%s'
    start_urls = [quotes_base_url % 1]
    download_delay = 1.5

    def parse(self, response):
        data = json.loads(response.body)
        for item in data.get('quotes', []):
            yield {
                'text': item.get('text'),
                'author': item.get('author', {}).get('name'),
                'tags': item.get('tags'),
            }
        if data['has_next']:
            next_page = data['page'] + 1
            yield scrapy.Request(self.quotes_base_url % next_page)

Use requests library. Try this solution, or just add https:// before the URL:

import requests
from bs4 import BeautifulSoup
import re

pages = set()
def getLinks(pageUrl):
    global pages
    html = requests.get("http://en.wikipedia.org"+pageUrl, verify=False).text
    bsObj = BeautifulSoup(html)
    for link in bsObj.findAll("a", href=re.compile("^(/wiki/)")):
        if 'href' in link.attrs:
            if link.attrs['href'] not in pages:
                #We have encountered a new page
                newPage = link.attrs['href']
                print(newPage)
                pages.add(newPage)
                getLinks(newPage)
getLinks("")

Check if this works for you

This did the trick for me.

sudo pip install --ignore-installed scrapy

Here is some example about getting print out the list component:

public class ListExample {

    public static void main(String[] args) {
        List<Model> models = new ArrayList<>();

        // TODO: First create your model and add to models ArrayList, to prevent NullPointerException for trying this example

        // Print the name from the list....
        for(Model model : models) {
            System.out.println(model.getName());
        }

        // Or like this...
        for(int i = 0; i < models.size(); i++) {
            System.out.println(models.get(i).getName());
        }
    }
}

class Model {

    private String name;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }
}

Another possibility is to use bit sets, for which there is at least one package or you can use the built-in big package. In this case, basically you need to define a way to convert your object to an index.

In Place of using this

MsgBox(json.SelectToken("Venue").SelectToken("ID"))

You can also use

MsgBox(json.SelectToken("Venue.ID"))

The best way to load an image is through the ImageIO API

BufferedImage img = ImageIO.read(new File("/path/to/some/image"));

There are a number of ways you can render an image to the screen.

You could use a JLabel. This is the simplest method if you don't want to modify the image in anyway...

JLabel background = new JLabel(new ImageIcon(img));

Then simply add it to your window as you see fit. If you need to add components to it, then you can simply set the label's layout manager to whatever you need and add your components.

If, however, you need something more sophisticated, need to change the image somehow or want to apply additional effects, you may need to use custom painting.

First cavert: Don't ever paint directly to a top level container (like JFrame). Top level containers aren't double buffered, so you may end up with some flashing between repaints, other objects live on the window, so changing it's paint process is troublesome and can cause other issues and frames have borders which are rendered inside the viewable area of the window...

Instead, create a custom component, extending from something like JPanel. Override it's paintComponent method and render your output to it, for example...

protected void paintComponent(Graphics g) {
    super.paintComponent(g);
    g.drawImage(img, 0, 0, this);
}

Take a look at Performing Custom Painting and 2D Graphics for more details

This is not something that SVG 1.1 supports. SVG 1.2 does have the textArea element, with automatic word wrapping, but it's not implemented in all browsers. SVG 2 does not plan on implementing textArea, but it does have auto-wrapped text.

However, given that you already know where your linebreaks should occur, you can break your text into multiple <tspan>s, each with x="0" and dy="1.4em" to simulate actual lines of text. For example:

<g transform="translate(123 456)"><!-- replace with your target upper left corner coordinates -->
  <text x="0" y="0">
    <tspan x="0" dy="1.2em">very long text</tspan>
    <tspan x="0" dy="1.2em">I would like to linebreak</tspan>
  </text>
</g>

Of course, since you want to do that from JavaScript, you'll have to manually create and insert each element into the DOM.

Don't forget to add your libraries & check your versions. Good information is in Using Notepad Plus Plus as a script editor.

Print ("This is how you pause")

input()

It's best to use miske's answer.

Properly installing natecarlson's repository

If you really want to use natecarlson's repository, the instructions just below can do any of the following:

1. set it up from scratch
2. repair it if apt-get update gives a 404 error after add-apt-repository
3. repair it if apt-get update gives a NO_PUBKEY error after manually adding it to /etc/apt/sources.list

Open a terminal and run the following:

sudo -i

Enter your password if necessary, then paste the following into the terminal:

export GOOD_RELEASE='precise'
export BAD_RELEASE="`lsb_release -cs`"
cd /etc/apt
sed -i '/natecarlson\/maven3/d' sources.list
cd sources.list.d
rm -f natecarlson-maven3-*.list*
apt-add-repository -y ppa:natecarlson/maven3
mv natecarlson-maven3-${BAD_RELEASE}.list natecarlson-maven3-${GOOD_RELEASE}.list
sed -i "s/${BAD_RELEASE}/${GOOD_RELEASE}/" natecarlson-maven3-${GOOD_RELEASE}.list
apt-get update
exit
echo Done!

Removing natecarlson's repository

If you installed natecarlson's repository (either using add-apt-repository or manually added to /etc/apt/sources.list) and you don't want it anymore, open a terminal and run the following:

sudo -i

Enter your password if necessary, then paste the following into the terminal:

cd /etc/apt
sed -i '/natecarlson\/maven3/d' sources.list
cd sources.list.d
rm -f natecarlson-maven3-*.list*
apt-get update
exit
echo Done!

Yes, there are a couple of differences, though in practical terms they're not usually big ones.

There's a fourth way, and as of ES2015 (ES6) there's two more. I've added the fourth way at the end, but inserted the ES2015 ways after #1 (you'll see why), so we have:

var a = 0;     // 1
let a = 0;     // 1.1 (new with ES2015)
const a = 0;   // 1.2 (new with ES2015)
a = 0;         // 2
window.a = 0;  // 3
this.a = 0;    // 4

Those statements explained

#1 var a = 0;

This creates a global variable which is also a property of the global object, which we access as window on browsers (or via this a global scope, in non-strict code). Unlike some other properties, the property cannot be removed via delete.

In specification terms, it creates an identifier binding on the object Environment Record for the global environment. That makes it a property of the global object because the global object is where identifier bindings for the global environment's object Environment Record are held. This is why the property is non-deletable: It's not just a simple property, it's an identifier binding.

The binding (variable) is defined before the first line of code runs (see "When var happens" below).

Note that on IE8 and earlier, the property created on window is not enumerable (doesn't show up in for..in statements). In IE9, Chrome, Firefox, and Opera, it's enumerable.

#1.1 let a = 0;

This creates a global variable which is not a property of the global object. This is a new thing as of ES2015.

In specification terms, it creates an identifier binding on the declarative Environment Record for the global environment rather than the object Environment Record. The global environment is unique in having a split Environment Record, one for all the old stuff that goes on the global object (the object Environment Record) and another for all the new stuff (let, const, and the functions created by class) that don't go on the global object.

The binding is created before any step-by-step code in its enclosing block is executed (in this case, before any global code runs), but it's not accessible in any way until the step-by-step execution reaches the let statement. Once execution reaches the let statement, the variable is accessible. (See "When let and const happen" below.)

#1.2 const a = 0;

Creates a global constant, which is not a property of the global object.

const is exactly like let except that you must provide an initializer (the = value part), and you cannot change the value of the constant once it's created. Under the covers, it's exactly like let but with a flag on the identifier binding saying its value cannot be changed. Using const does three things for you:

1. Makes it a parse-time error if you try to assign to the constant.
2. Documents its unchanging nature for other programmers.
3. Lets the JavaScript engine optimize on the basis that it won't change.

#2 a = 0;

This creates a property on the global object implicitly. As it's a normal property, you can delete it. I'd recommend not doing this, it can be unclear to anyone reading your code later. If you use ES5's strict mode, doing this (assigning to a non-existent variable) is an error. It's one of several reasons to use strict mode.

And interestingly, again on IE8 and earlier, the property created not enumerable (doesn't show up in for..in statements). That's odd, particularly given #3 below.

#3 window.a = 0;

This creates a property on the global object explicitly, using the window global that refers to the global object (on browsers; some non-browser environments have an equivalent global variable, such as global on NodeJS). As it's a normal property, you can delete it.

This property is enumerable, on IE8 and earlier, and on every other browser I've tried.

#4 this.a = 0;

Exactly like #3, except we're referencing the global object through this instead of the global window. This won't work in strict mode, though, because in strict mode global code, this doesn't have a reference to the global object (it has the value undefined instead).

Deleting properties

What do I mean by "deleting" or "removing" a? Exactly that: Removing the property (entirely) via the delete keyword:

window.a = 0;
display("'a' in window? " + ('a' in window)); // displays "true"
delete window.a;
display("'a' in window? " + ('a' in window)); // displays "false"

delete completely removes a property from an object. You can't do that with properties added to window indirectly via var, the delete is either silently ignored or throws an exception (depending on the JavaScript implementation and whether you're in strict mode).

Warning: IE8 again (and presumably earlier, and IE9-IE11 in the broken "compatibility" mode): It won't let you delete properties of the window object, even when you should be allowed to. Worse, it throws an exception when you try (try this experiment in IE8 and in other browsers). So when deleting from the window object, you have to be defensive:

try {
    delete window.prop;
}
catch (e) {
    window.prop = undefined;
}

That tries to delete the property, and if an exception is thrown it does the next best thing and sets the property to undefined.

This only applies to the window object, and only (as far as I know) to IE8 and earlier (or IE9-IE11 in the broken "compatibility" mode). Other browsers are fine with deleting window properties, subject to the rules above.

When var happens

The variables defined via the var statement are created before any step-by-step code in the execution context is run, and so the property exists well before the var statement.

This can be confusing, so let's take a look:

display("foo in window? " + ('foo' in window)); // displays "true"
display("window.foo = " + window.foo);          // displays "undefined"
display("bar in window? " + ('bar' in window)); // displays "false"
display("window.bar = " + window.bar);          // displays "undefined"
var foo = "f";
bar = "b";
display("foo in window? " + ('foo' in window)); // displays "true"
display("window.foo = " + window.foo);          // displays "f"
display("bar in window? " + ('bar' in window)); // displays "true"
display("window.bar = " + window.bar);          // displays "b"

Live example:

display("foo in window? " + ('foo' in window)); // displays "true"_x000D_
display("window.foo = " + window.foo);          // displays "undefined"_x000D_
display("bar in window? " + ('bar' in window)); // displays "false"_x000D_
display("window.bar = " + window.bar);          // displays "undefined"_x000D_
var foo = "f";_x000D_
bar = "b";_x000D_
display("foo in window? " + ('foo' in window)); // displays "true"_x000D_
display("window.foo = " + window.foo);          // displays "f"_x000D_
display("bar in window? " + ('bar' in window)); // displays "true"_x000D_
display("window.bar = " + window.bar);          // displays "b"_x000D_
_x000D_
function display(msg) {_x000D_
  var p = document.createElement('p');_x000D_
  p.innerHTML = msg;_x000D_
  document.body.appendChild(p);_x000D_
}

As you can see, the symbol foo is defined before the first line, but the symbol bar isn't. Where the var foo = "f"; statement is, there are really two things: defining the symbol, which happens before the first line of code is run; and doing an assignment to that symbol, which happens where the line is in the step-by-step flow. This is known as "var hoisting" because the var foo part is moved ("hoisted") to the top of the scope, but the foo = "f" part is left in its original location. (See Poor misunderstood var on my anemic little blog.)

When let and const happen

let and const are different from var in a couple of ways. The way that's relevant to the question is that although the binding they define is created before any step-by-step code runs, it's not accessible until the let or const statement is reached.

So while this runs:

display(a);    // undefined
var a = 0;
display(a);    // 0

This throws an error:

display(a);    // ReferenceError: a is not defined
let a = 0;
display(a);

The other two ways that let and const differ from var, which aren't really relevant to the question, are:

1. var always applies to the entire execution context (throughout global code, or throughout function code in the function where it appears), but let and const apply only within the block where they appear. That is, var has function (or global) scope, but let and const have block scope.

2. Repeating var a in the same context is harmless, but if you have let a (or const a), having another let a or a const a or a var a is a syntax error.

Here's an example demonstrating that let and const take effect immediately in their block before any code within that block runs, but aren't accessible until the let or const statement:

var a = 0;
console.log(a);
if (true)
{
  console.log(a); // ReferenceError: a is not defined
  let a = 1;
  console.log(a);
}

Note that the second console.log fails, instead of accessing the a from outside the block.

Off-topic: Avoid cluttering the global object (window)

The window object gets very, very cluttered with properties. Whenever possible, strongly recommend not adding to the mess. Instead, wrap up your symbols in a little package and export at most one symbol to the window object. (I frequently don't export any symbols to the window object.) You can use a function to contain all of your code in order to contain your symbols, and that function can be anonymous if you like:

(function() {
    var a = 0; // `a` is NOT a property of `window` now

    function foo() {
        alert(a);   // Alerts "0", because `foo` can access `a`
    }
})();

In that example, we define a function and have it executed right away (the () at the end).

A function used in this way is frequently called a scoping function. Functions defined within the scoping function can access variables defined in the scoping function because they're closures over that data (see: Closures are not complicated on my anemic little blog).

You can change meta with, for example, jQuery calls, like this ones:

$('meta[name=keywords]').attr('content', new_keywords);
$('meta[name=description]').attr('content', new_description);

I think it does matter for now, since google said that they will index ajax content via #!hashes and _escaped_fragment_ calls. And now they can verify it (even automatically, with headless browsers, see the 'Creating HTML Snapshots' link on the page mentioned above), so I think it is the way for hardcore SEO guys.

I ran into the same issue, here's my post:

Android Studio - Gradle build failing - Java Heap Space

exec summary: Windows looks for the gradle.properties file here:

C:\Users\.gradle\gradle.properties

So create that file, and add a line like this:

org.gradle.jvmargs=-XX\:MaxHeapSize\=256m -Xmx256m

as per @Faiz Siddiqui post

Accessing direct properties and related are explained

// Get an instance of the WC_Order object
            $order = wc_get_order($order_id);
            $order_data = array(
                    'order_id' => $order->get_id(),
                    'order_number' => $order->get_order_number(),
                    'order_date' => date('Y-m-d H:i:s', strtotime(get_post($order->get_id())->post_date)),
                    'status' => $order->get_status(),
                    'shipping_total' => $order->get_total_shipping(),
                    'shipping_tax_total' => wc_format_decimal($order->get_shipping_tax(), 2),
                    'fee_total' => wc_format_decimal($fee_total, 2),
                    'fee_tax_total' => wc_format_decimal($fee_tax_total, 2),
                    'tax_total' => wc_format_decimal($order->get_total_tax(), 2),
                    'cart_discount' => (defined('WC_VERSION') && (WC_VERSION >= 2.3)) ? wc_format_decimal($order->get_total_discount(), 2) : wc_format_decimal($order->get_cart_discount(), 2),
                    'order_discount' => (defined('WC_VERSION') && (WC_VERSION >= 2.3)) ? wc_format_decimal($order->get_total_discount(), 2) : wc_format_decimal($order->get_order_discount(), 2),
                    'discount_total' => wc_format_decimal($order->get_total_discount(), 2),
                    'order_total' => wc_format_decimal($order->get_total(), 2),
                    'order_currency' => $order->get_currency(),
                    'payment_method' => $order->get_payment_method(),
                    'shipping_method' => $order->get_shipping_method(),
                    'customer_id' => $order->get_user_id(),
                    'customer_user' => $order->get_user_id(),
                    'customer_email' => ($a = get_userdata($order->get_user_id() )) ? $a->user_email : '',
                    'billing_first_name' => $order->get_billing_first_name(),
                    'billing_last_name' => $order->get_billing_last_name(),
                    'billing_company' => $order->get_billing_company(),
                    'billing_email' => $order->get_billing_email(),
                    'billing_phone' => $order->get_billing_phone(),
                    'billing_address_1' => $order->get_billing_address_1(),
                    'billing_address_2' => $order->get_billing_address_2(),
                    'billing_postcode' => $order->get_billing_postcode(),
                    'billing_city' => $order->get_billing_city(),
                    'billing_state' => $order->get_billing_state(),
                    'billing_country' => $order->get_billing_country(),
                    'shipping_first_name' => $order->get_shipping_first_name(),
                    'shipping_last_name' => $order->get_shipping_last_name(),
                    'shipping_company' => $order->get_shipping_company(),
                    'shipping_address_1' => $order->get_shipping_address_1(),
                    'shipping_address_2' => $order->get_shipping_address_2(),
                    'shipping_postcode' => $order->get_shipping_postcode(),
                    'shipping_city' => $order->get_shipping_city(),
                    'shipping_state' => $order->get_shipping_state(),
                    'shipping_country' => $order->get_shipping_country(),
                    'customer_note' => $order->get_customer_note(),
                    'download_permissions' => $order->is_download_permitted() ? $order->is_download_permitted() : 0,
            );

Additional details

  $line_items_shipping = $order->get_items('shipping');
            foreach ($line_items_shipping as $item_id => $item) {
                if (is_object($item)) {
                    if ($meta_data = $item->get_formatted_meta_data('')) :
                        foreach ($meta_data as $meta_id => $meta) :
                            if (in_array($meta->key, $line_items_shipping)) {
                                continue;
                            }
                            // html entity decode is not working preoperly
                            $shipping_items[] = implode('|', array('item:' . wp_kses_post($meta->display_key), 'value:' . str_replace('×', 'X', strip_tags($meta->display_value))));
                        endforeach;
                    endif;
                }
            }

            //get fee and total
            $fee_total = 0;
            $fee_tax_total = 0;

            foreach ($order->get_fees() as $fee_id => $fee) {

                $fee_items[] = implode('|', array(
                        'name:' .  html_entity_decode($fee['name'], ENT_NOQUOTES, 'UTF-8'),
                        'total:' . wc_format_decimal($fee['line_total'], 2),
                        'tax:' . wc_format_decimal($fee['line_tax'], 2),
                ));

                $fee_total += $fee['line_total'];
                $fee_tax_total += $fee['line_tax'];
            }

            // get tax items
            foreach ($order->get_tax_totals() as $tax_code => $tax) {            
                $tax_items[] = implode('|', array(
                    'rate_id:'.$tax->id,
                    'code:' . $tax_code,
                    'total:' . wc_format_decimal($tax->amount, 2),
                    'label:'.$tax->label,                
                    'tax_rate_compound:'.$tax->is_compound,
                ));
            }

            // add coupons
            foreach ($order->get_items('coupon') as $_ => $coupon_item) {

                $coupon = new WC_Coupon($coupon_item['name']);

                $coupon_post = get_post((WC()->version < '2.7.0') ? $coupon->id : $coupon->get_id());
                $discount_amount = !empty($coupon_item['discount_amount']) ? $coupon_item['discount_amount'] : 0;
                $coupon_items[] = implode('|', array(
                        'code:' . $coupon_item['name'],
                        'description:' . ( is_object($coupon_post) ? $coupon_post->post_excerpt : '' ),
                        'amount:' . wc_format_decimal($discount_amount, 2),
                ));
            }

            foreach ($order->get_refunds() as $refunded_items){
                $refund_items[] = implode('|', array(
                    'amount:' . $refunded_items->get_amount(),
            'reason:' . $refunded_items->get_reason(),
                    'date:'. date('Y-m-d H-i-s',strtotime((WC()->version < '2.7.0') ? $refunded_items->date_created : $refunded_items->get_date_created())),
                ));
            }

C++ compilers process their input once. Each class you use must have been defined first. You use MyMessageBox before you define it. In this case, you can simply swap the two class definitions.

As per OpenCV docs(1), below steps using OpenCV manager is the recommended way to use OpenCV for production runs. But, OpenCV manager(2) is an additional install from Google play store. So, if you prefer a self contained apk(not using OpenCV manager) or is currently in development/testing phase, I suggest answer at https://stackoverflow.com/a/27421494/1180117.

Recommended steps for using OpenCV in Android Studio with OpenCV manager.

1. Unzip OpenCV Android sdk downloaded from OpenCV.org(3)
2. From File -> Import Module, choose sdk/java folder in the unzipped opencv archive.
3. Update build.gradle under imported OpenCV module to update 4 fields to match your project's build.gradle a) compileSdkVersion b) buildToolsVersion c) minSdkVersion and 4) targetSdkVersion.
4. Add module dependency by Application -> Module Settings, and select the Dependencies tab. Click + icon at bottom(or right), choose Module Dependency and select the imported OpenCV module.

As the final step, in your Activity class, add snippet below.

    public class SampleJava extends Activity  {

        private BaseLoaderCallback mLoaderCallback = new BaseLoaderCallback(this) {
        @Override
        public void onManagerConnected(int status) {
            switch(status) {
                case LoaderCallbackInterface.SUCCESS:
                    Log.i(TAG,"OpenCV Manager Connected");
                    //from now onwards, you can use OpenCV API
                    Mat m = new Mat(5, 10, CvType.CV_8UC1, new Scalar(0));
                    break;
                case LoaderCallbackInterface.INIT_FAILED:
                    Log.i(TAG,"Init Failed");
                    break;
                case LoaderCallbackInterface.INSTALL_CANCELED:
                    Log.i(TAG,"Install Cancelled");
                    break;
                case LoaderCallbackInterface.INCOMPATIBLE_MANAGER_VERSION:
                    Log.i(TAG,"Incompatible Version");
                    break;
                case LoaderCallbackInterface.MARKET_ERROR:
                    Log.i(TAG,"Market Error");
                    break;
                default:
                    Log.i(TAG,"OpenCV Manager Install");
                    super.onManagerConnected(status);
                    break;
            }
        }
    };

    @Override
    protected void onResume() {
        super.onResume();
        //initialize OpenCV manager
        OpenCVLoader.initAsync(OpenCVLoader.OPENCV_VERSION_2_4_9, this, mLoaderCallback);
    }
}

Note: You could only make OpenCV calls after you receive success callback on onManagerConnected method. During run, you will be prompted for installation of OpenCV manager from play store, if it is not already installed. During development, if you don't have access to play store or is on emualtor, use appropriate OpenCV manager apk present in apk folder under downloaded OpenCV sdk archive .

Pros

• Apk size reduction by around 40 MB ( consider upgrades too ).
• OpenCV manager installs optimized binaries for your hardware which could help speed.
• Upgrades to OpenCV manager might save your app from bugs in OpenCV.
• Different apps could share same OpenCV library.

Cons

• End user experience - might not like a install prompt from with your application.

Try this:

String[] arr = new String[3];// if size is fixed otherwise use ArrayList.
int i=0;
while((str = in.readLine()) != null)          
    arr[i++] = str;

System.out.println(Arrays.toString(arr));

I've made small modifications to @paul-H code, such that you can set the font size for the x/y axes and legend independently. Hope it helps:

import numpy as np
import matplotlib.pyplot as plt
import seaborn as sns
x = np.random.normal(size=37)
y = np.random.lognormal(size=37)

# defaults                                                                                                         
sns.set()
fig, ax = plt.subplots()
ax.plot(x, y, marker='s', linestyle='none', label='small')
ax.legend(loc='upper left', fontsize=20,bbox_to_anchor=(0, 1.1))
ax.set_xlabel('X_axi',fontsize=20);
ax.set_ylabel('Y_axis',fontsize=20);

plt.show()

This is the output:

This solution should work for IE9 and up.

It's like jQuery's parents() method when you need to get a parent container which might be up a few levels from the given element, like finding the containing <form> of a clicked <button>. Looks through the parents until the matching selector is found, or until it reaches the <body>. Returns either the matching element or the <body>.

function parents(el, selector){
    var parent_container = el;
    do {
        parent_container = parent_container.parentNode;
    }
    while( !parent_container.matches(selector) && parent_container !== document.body );

    return parent_container;
}

Add "name" attribute and keep the name same for all the radio buttons in a form.

i.e.,

<input type="radio" name="test" value="value1"> Value 1
<input type="radio" name="test" value="value2"> Value 2
<input type="radio" name="test" value="value3"> Value 3

Hope that would help.

I saw it's solved, but I still want to share a solution which worked for me.

.env file:

DB_CONNECTION=mysql
DB_HOST=127.0.0.1
DB_PORT=3306
DB_DATABASE=[your database name]
DB_USERNAME=[your MySQL username]
DB_PASSWORD=[your MySQL password]

MySQL admin:

 SELECT user, host FROM mysql.user

Thank you, spencer7593

Console:

php artisan cache:clear
php artisan config:cache

Now it works for me.

Laracasts answers

The multiline flag tells regex to match the pattern to each line as opposed to the entire string for your purposes a wild card will suffice.

Use the flex-grow property to make a flex item consume free space on the main axis.

This property will expand the item as much as possible, adjusting the length to dynamic environments, such as screen re-sizing or the addition / removal of other items.

A common example is flex-grow: 1 or, using the shorthand property, flex: 1.

Hence, instead of width: 96% on your div, use flex: 1.

You wrote:

So at the moment, it's set to 96% which looks OK until you really squash the screen - then the right hand div gets a bit starved of the space it needs.

The squashing of the fixed-width div is related to another flex property: flex-shrink

By default, flex items are set to flex-shrink: 1 which enables them to shrink in order to prevent overflow of the container.

To disable this feature use flex-shrink: 0.

For more details see The flex-shrink factor section in the answer here:

• What are the differences between flex-basis and width?

Learn more about flex alignment along the main axis here:

• In CSS Flexbox, why are there no "justify-items" and "justify-self" properties?

Learn more about flex alignment along the cross axis here:

• How does flex-wrap work with align-self, align-items and align-content?

The second line should have been pixels[0], with an S. You probably have a tuple named pixel, and tuples are immutable. Construct new pixels instead:

image = Image.open('balloon.jpg')

pixels = [(pix[0] + 20,) + pix[1:] for pix in image.getdata()]

image.putdate(pixels)

There are several file versions on the great Christoph Gohlke's site.

Something I have found important when installing wheels from this site is to first run this from the Python console:

import pip
print(pip.pep425tags.get_supported())

so that you know which version you should install for your computer. Picking the wrong version may fail the installing of the package (especially if you don't use the right CPython tag, for example, cp27).

"abcd4yyyy" | grep 4 -c gives the count as 1

RST is sent by the side doing the active close because it is the side which sends the last ACK. So if it receives FIN from the side doing the passive close in a wrong state, it sends a RST packet which indicates other side that an error has occured.

Actually, you only need to use the default argument to add_argument as in this test.py script:

import argparse

if __name__ == '__main__':

    parser = argparse.ArgumentParser()
    parser.add_argument('--example', default=1)
    args = parser.parse_args()
    print(args.example)

test.py --example
% 1
test.py --example 2
% 2

Details are here.

here is the complete example of how you can select and upload multiple files in asp.net using file upload control....

write this code in .aspx file..

<head runat="server">
    <title></title>
</head>
<body>
<form id="form1" runat="server" enctype="multipart/form-data">
<div>
    <input type="file" id="myfile" multiple="multiple" name="myfile" runat="server" size="100" />
    <br />
    <asp:Button ID="Button1" runat="server" Text="Button" OnClick="Button1_Click" />
    <br />
    <asp:Label ID="Span1" runat="server"></asp:Label>
</div>
</form>
</body>
</html>

after that write this code in .aspx.cs file..

   protected void Button1_Click(object sender,EventArgs e) {
          string filepath = Server.MapPath("\\Upload");
          HttpFileCollection uploadedFiles = Request.Files;
          Span1.Text = string.Empty;

          for(int i = 0;i < uploadedFiles.Count;i++) {
              HttpPostedFile userPostedFile = uploadedFiles[i];

              try {
                  if (userPostedFile.ContentLength > 0) {
                     Span1.Text += "<u>File #" + (i + 1) +  "</u><br>";
                     Span1.Text += "File Content Type: " +  userPostedFile.ContentType      + "<br>";
                     Span1.Text += "File Size: " + userPostedFile.ContentLength           + "kb<br>";
                     Span1.Text += "File Name: " + userPostedFile.FileName + "<br>";

                     userPostedFile.SaveAs(filepath + "\\" +    Path.GetFileName(userPostedFile.FileName));                  
                     Span1.Text += "Location where saved: " +   filepath + "\\" +   Path.GetFileName(userPostedFile.FileName) + "<p>";
                  }
              } catch(Exception Ex) {
                  Span1.Text += "Error: <br>" + Ex.Message;
              }
           }
        }
    }

and here you go...your multiple file upload control is ready..have a happy day.

Using new fancy shmancy features in ksh, bash, and zsh shells (this example doesn't handle spaces in filenames):

# Declare a regular array (-A will declare an associative array. Kewl!)
declare -a myarray=( /mydir/tmp*.txt )
array_length=${#myarray[@]}

# Not found if the 1st element of the array is the unexpanded string
# (ie, if it contains a "*")
if [[ ${myarray[0]} =~ [*] ]] ; then
   echo "No files not found"
elif [ $array_length -eq 1 ] ; then
   echo "File was found"
else
   echo "Files were found"
fi

for myfile in ${myarray[@]}
do
  echo "$myfile"
done

Yes, this does smell like Perl. Glad I didn't step in it ;)

In a nutshell what it does is refer to the id of the input, that's all:

<label for="the-id-of-the-input">Input here:</label>
<input type="text" name="the-name-of-input" id="the-id-of-the-input">

i use dumpsys to catch if app is crashed and process is still active. situation i used it is to find about remote machine app is crashed or not.

dumpsys | grep myapp | grep "Application Error" 

or

adb shell dumpsys | grep myapp | grep Error

or anything that helps...etc

if app is not running you will get nothing as result. When app is stoped messsage is shown on screen by android, process is still active and if you check via "ps" command or anything else, you will see process state is not showing any error or crash meaning. But when you click button to close message, app process will cleaned from process list. so catching crash state without any code in application is hard to find. but dumpsys helps you.

Download source code from here (Open Pdf from url in Android Programmatically)

MainActivity.java

package com.deepshikha.openpdf;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.ProgressBar;

public class MainActivity extends AppCompatActivity {
    WebView webview;
    ProgressBar progressbar;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        webview = (WebView)findViewById(R.id.webview);
        progressbar = (ProgressBar) findViewById(R.id.progressbar);
        webview.getSettings().setJavaScriptEnabled(true);
        String filename ="http://www3.nd.edu/~cpoellab/teaching/cse40816/android_tutorial.pdf";
        webview.loadUrl("http://docs.google.com/gview?embedded=true&url=" + filename);

        webview.setWebViewClient(new WebViewClient() {

            public void onPageFinished(WebView view, String url) {
                // do your stuff here
                progressbar.setVisibility(View.GONE);
            }
        });

    }
}

Thanks!

MySQL JDBC Connection with useSSL.

private String db_server = BaseMethods.getSystemData("db_server");
private String db_user = BaseMethods.getSystemData("db_user");
private String db_password = BaseMethods.getSystemData("db_password");

private String connectToDb() throws Exception {
   String jdbcDriver = "com.mysql.jdbc.Driver";
   String dbUrl = "jdbc:mysql://" + db_server  +
        "?verifyServerCertificate=false" +
        "&useSSL=true" +
        "&requireSSL=true";
    System.setProperty(jdbcDriver, "");
    Class.forName(jdbcDriver).newInstance();

    Connection conn = DriverManager.getConnection(dbUrl, db_user, db_password);
    Statement statement = conn.createStatement();
    String query = "SELECT EXTERNAL_ID FROM offer_letter where ID =" + "\"" + letterID + "\"";
    ResultSet resultSet = statement.executeQuery(query);
    resultSet.next();
    return resultSet.getString(1);
}

select field1, field2, '' as newfield from table1

This Will Do you Job

It changes in angular 2.1.0

In something.module.ts

import { NgModule } from '@angular/core';
import { CommonModule } from '@angular/common';
import { BlogComponent } from './blog.component';
import { AddComponent } from './add/add.component';
import { EditComponent } from './edit/edit.component';
import { RouterModule } from '@angular/router';
import { MaterialModule } from '@angular/material';
import { FormsModule } from '@angular/forms';
const routes = [
  {
    path: '',
    component: BlogComponent
  },
  {
    path: 'add',
    component: AddComponent
  },
  {
    path: 'edit/:id',
    component: EditComponent,
    data: {
      type: 'edit'
    }
  }

];
@NgModule({
  imports: [
    CommonModule,
    RouterModule.forChild(routes),
    MaterialModule.forRoot(),
    FormsModule
  ],
  declarations: [BlogComponent, EditComponent, AddComponent]
})
export class BlogModule { }

To get the data or params in edit component

import { Component, OnInit } from '@angular/core';
import { Router, ActivatedRoute, Params, Data } from '@angular/router';
@Component({
  selector: 'app-edit',
  templateUrl: './edit.component.html',
  styleUrls: ['./edit.component.css']
})
export class EditComponent implements OnInit {
  constructor(
    private route: ActivatedRoute,
    private router: Router

  ) { }
  ngOnInit() {

    this.route.snapshot.params['id'];
    this.route.snapshot.data['type'];

  }
}

What Perforce features are people using?

• Multiple workspaces on a single machine
• Numbered changelists
• Developer branches
• Integration with IDE (Visual Studio, Eclipse, SlickEdit, ...)
• Many build variants
• Composite workspaces
• Integrating some fixes but not others
• etc

I ask because if all folks are doing is get and put from the command line, git has that covered, and so do all the other RTS.

I was totally lost on why my Gridview.Databind() would not refresh.

My issue, I discovered, was my gridview was inside a UpdatePanel. To get my GridView to FINALLY refresh was this:

gvServerConfiguration.Databind()
uppServerConfiguration.Update()

uppServerConfiguration is the id associated with my UpdatePanel in my asp.net code.

Hope this helps someone.

Leave off the quotes

$cmd &
$othercmd &

eg:

nicholas@nick-win7 /tmp
$ cat test
#!/bin/bash

cmd="ls -la"

$cmd &


nicholas@nick-win7 /tmp
$ ./test

nicholas@nick-win7 /tmp
$ total 6
drwxrwxrwt+ 1 nicholas root    0 2010-09-10 20:44 .
drwxr-xr-x+ 1 nicholas root 4096 2010-09-10 14:40 ..
-rwxrwxrwx  1 nicholas None   35 2010-09-10 20:44 test
-rwxr-xr-x  1 nicholas None   41 2010-09-10 20:43 test~

For anybody that wants a quick solution here is how I removed Decimal from my queries in Django

total_development_cost_var = process_assumption_objects.values('total_development_cost').aggregate(sum_dev = Sum('total_development_cost', output_field=FloatField()))
total_development_cost_var = list(total_development_cost_var.values())

• Step 1: use , output_field=FloatField() in you r query
• Step 2: use list eg list(total_development_cost_var.values())

Hope it helps

Friend of mine swears by jed, http://www.jedsoft.org/jed/

Java strings are interesting. It looks like the responses have covered some of the interesting points. Here are my two cents.

strings are immutable (you can never change them)

String x = "x";
x = "Y"; 

• The first line will create a variable x which will contain the string value "x". The JVM will look in its pool of string values and see if "x" exists, if it does, it will point the variable x to it, if it does not exist, it will create it and then do the assignment
• The second line will remove the reference to "x" and see if "Y" exists in the pool of string values. If it does exist, it will assign it, if it does not, it will create it first then assignment. As the string values are used or not, the memory space in the pool of string values will be reclaimed.

string comparisons are contingent on what you are comparing

String a1 = new String("A");

String a2 = new String("A");

• a1 does not equal a2
• a1 and a2 are object references
• When string is explicitly declared, new instances are created and their references will not be the same.

I think you're on the wrong path with trying to use the caseinsensitive class. Leave the strings alone. What you really care about is how you display or compare the values. Use another class to format the string or to make comparisons.

i.e.

TextUtility.compare(string 1, string 2) 
TextUtility.compareIgnoreCase(string 1, string 2)
TextUtility.camelHump(string 1)

Since you are making up the class, you can make the compares do what you want - compare the text values.

For ANGULAR CLI users

Using external libraries is in the documentation here:

https://github.com/angular/angular-cli/wiki/stories-third-party-lib

Simply install your library via

npm install lib-name --save

and import it in your code. If the library does not include typings, you can install them using:

npm install lib-name --save

npm install @types/lib-name --save-dev

Then open src/tsconfig.app.json and add it to the types array:

"types":[ "lib-name" ]

If the library you added typings for is only to be used on your e2e tests, instead use e2e/tsconfig.e2e.json. The same goes for unit tests and src/tsconfig.spec.json.

If the library doesn't have typings available at @types/, you can still use it by manually adding typings for it:

First, create a typings.d.ts file in your src/ folder.

This file will be automatically included as global type definition. Then, in src/typings.d.ts, add the following code:

declare module 'typeless-package';

Finally, in the component or file that uses the library, add the following code:

import * as typelessPackage from 'typeless-package'; typelessPackage.method();

Done. Note: you might need or find useful to define more typings for the library that you're trying to use.

I had the same problem where there's no files under Generated Java files, BuildConfig and R.java were missing. The automatic build option is not generating.
In Eclipse under Project, uncheck Build Automatically. Then under Project select Build Project. You may need to fix the projec

just place your fonts inside app/assets/fonts folder and set the autoload path when app start using writing the code in application.rb

config.assets.paths << Rails.root.join("app", "assets", "fonts") and

then use the following code in css.

@font-face {

 font-family: 'icomoon';
 src: asset-url('icomoon.eot');
 src: asset-url('icomoon.eot') format('embedded-opentype'),
      asset-url('icomoon.woff') format('woff'),
      asset-url('icomoon.ttf') format('truetype'),
      asset-url('icomoon.svg') format('svg');
 font-weight: normal;
 font-style: normal;

}

Give it a try.

Thanks

You can use css float

<div style='float: left;'><a href="login.php">Log in</a></div>

<div style='float: right;'><a href="home.php">Back to Home</a></div>

Have a look at this CSS Positioning

Personally, I think the simplest approach to do an http post and get the response is to use the WebClient class. This class nicely abstracts the details. There's even a full code example in the MSDN documentation.

http://msdn.microsoft.com/en-us/library/system.net.webclient(VS.80).aspx

In your case, you want the UploadData() method. (Again, a code sample is included in the documentation)

http://msdn.microsoft.com/en-us/library/tdbbwh0a(VS.80).aspx

UploadString() will probably work as well, and it abstracts it away one more level.

http://msdn.microsoft.com/en-us/library/system.net.webclient.uploadstring(VS.80).aspx

Java 9 offers a Matcher.replaceAll() that accepts a replacement function:

resultString = regexMatcher.replaceAll(
        m -> String.valueOf(Integer.parseInt(m.group()) * 3));

One more reason for this error (assuming that gradle properly setup) is incompatibility between andorid.gradle tools and gradle itself - check out this answer for the complete compatibility table.

In my case the error was the same as in the question and the stacktrace as following:

java.lang.NullPointerException
    at java.util.Objects.requireNonNull(Objects.java:203)
    at com.android.build.gradle.BasePlugin.lambda$configureProject$1(BasePlugin.java:436)
    at sun.reflect.GeneratedMethodAccessor32.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
    at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
    at org.gradle.internal.event.AbstractBroadcastDispatch.dispatch(AbstractBroadcastDispatch.java:42)
    ...

I've fixed that by upgrading com.android.tools.build:gradle to the current latest 3.1.4

buildscript {
    repositories {
        ...
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.1.4'
    }
}

Gradle version is 4.6

<div> with some proportions

div {
  position: relative;
  width: 100%;
  height: 100%;
}

<img>'s with their own proportions

img {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  width: auto; /* to keep proportions */
  height: auto; /* to keep proportions */
  max-width: 100%; /* not to stand out from div */
  max-height: 100%; /* not to stand out from div */
  margin: auto auto 0; /* position to bottom and center */
}

For those of you who tried all the above answers without any success, try lowering your -Xms value. I am required to support an older Eclipse (Weblogic Eclipse 10.3.6) - I had the following .ini on my Windows 7 machine and my Windows Server 2008 R2 Enterprise VM (the Java version below points to a 32-bit Java) that had worked and were working perfectly, respectively.

-vm
C:/Java/Java7/jdk1.7.0_79/bin/javaw.exe
-startup
plugins/org.eclipse.equinox.launcher_1.3.0.v20120522-1813.jar
--launcher.library
plugins/org.eclipse.equinox.launcher.win32.win32.x86_1.1.200.v20120522-1813
-showsplash
org.eclipse.platform
--launcher.defaultAction
openFile
-vmargs
-Xms1024m
-Xmx1024m
-XX:MaxPermSize=256m
-Dsun.lang.ClassLoader.allowArraySyntax=true
-Dweblogic.home=C:/Oracle/Middleware/wlserver_10.3

So a 32-bit Java for a 32-bit Eclipse, but still exit code 1. Based on all answers I had seen here, and the only change being a new laptop with Windows 10, the only possible explanation was that the new OS and the Eclipse were disagreeing on something. So I started playing around with each of the values, and it worked when I lowered both Xms and Xmx to 512m. I have a hunch that possibly the new Windows OS is preventing a higher initial heap size based on some run condition (the higher -Xms does work on Windows 10 on all other similar devices I came across) - so any other explanation is welcome. Meanwhile following is the only value I tweaked to successfully launch Eclipse.

-Xms512m 

Setting src attribute didn't work for me. The iframe didn't display the url.

What worked for me was:

window.open(url, "nameof_iframe");

Hope it helps someone.

In my case this works fine:

from pyspark_llap import HiveWarehouseSession
hive = HiveWarehouseSession.session(spark).build()
hive.setDatabase("DatabaseName")
df = spark.read.format("csv").option("Header",True).load("/user/csvlocation.csv")
df.write.format(HiveWarehouseSession().HIVE_WAREHOUSE_CONNECTOR).option("table",<tablename>).save()

Done!!

You can read the Data, let you give as "Employee"

hive.executeQuery("select * from Employee").show()

For more details use this URL: https://docs.cloudera.com/HDPDocuments/HDP3/HDP-3.1.5/integrating-hive/content/hive-read-write-operations.html

It is just equally spaced hues around the color wheel, starting from 15:

gg_color_hue <- function(n) {
  hues = seq(15, 375, length = n + 1)
  hcl(h = hues, l = 65, c = 100)[1:n]
}

For example:

n = 4
cols = gg_color_hue(n)

dev.new(width = 4, height = 4)
plot(1:n, pch = 16, cex = 2, col = cols)

$badData = 'a:2:{i:0;s:16:"as:45:"d";
Is \n";i:1;s:19:"as:45:"d";
Is \r\n";}';

You can not fix a broken serialize string using the proposed regexes:

$data = preg_replace('!s:(\d+):"(.*?)";!e', "'s:'.strlen('$2').':\"$2\";'", $badData);
var_dump(@unserialize($data)); // Output: bool(false)

// or

$data = preg_replace_callback(
    '/s:(\d+):"(.*?)";/',
    function($m){
        return 's:' . strlen($m[2]) . ':"' . $m[2] . '";';
    },
    $badData
);
var_dump(@unserialize($data)); // Output: bool(false)

You can fix broken serialize string using following regex:

$data = preg_replace_callback(
    '/(?<=^|\{|;)s:(\d+):\"(.*?)\";(?=[asbdiO]\:\d|N;|\}|$)/s',
    function($m){
        return 's:' . strlen($m[2]) . ':"' . $m[2] . '";';
    },
    $badData
);

var_dump(@unserialize($data));

Output

array(2) {
  [0] =>
  string(17) "as:45:"d";
Is \n"
  [1] =>
  string(19) "as:45:"d";
Is \r\n"
}

or

array(2) {
  [0] =>
  string(16) "as:45:"d";
Is \n"
  [1] =>
  string(18) "as:45:"d";
Is \r\n"
}

The other answers detail the reason for the error. A possible cause (to check) may be your class has a variable and method with the same name, which you then call. Python accesses the variable as a callable - with ().

e.g. Class A defines self.a and self.a():

>>> class A:
...     def __init__(self, val):
...         self.a = val
...     def a(self):
...         return self.a
...
>>> my_a = A(12)
>>> val = my_a.a()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: 'int' object is not callable
>>>

In another stackoverflow question, somebody answered this : you must get rid of warnings and errors (syntax and links) in your xml files. This plus doing a clean / build project.

Project -> Clean, and choose the option to build the project.

find all tabs and replaced by 4 spaces in notepad ++ .It worked.

Here is one more example. (check the reference)

const myObject = {_x000D_
  "employeeid": "160915848",_x000D_
  "firstName": "tet",_x000D_
  "lastName": "test",_x000D_
  "email": "[email protected]",_x000D_
  "country": "Brasil",_x000D_
  "currentIndustry": "aaaaaaaaaaaaa",_x000D_
  "otherIndustry": "aaaaaaaaaaaaa",_x000D_
  "currentOrganization": "test",_x000D_
  "salary": "1234567"_x000D_
};_x000D_
const {otherIndustry, ...otherIndustry2} = myObject;_x000D_
console.log(otherIndustry2);

.as-console-wrapper {_x000D_
  max-height: 100% !important;_x000D_
  top: 0;_x000D_
}

Platform.runLater works to prevent execution until initialization is complete. In this case, i want to refresh a list view every time I resize the window width.

Platform.runLater(() -> {
    ((Stage) listView.getScene().getWindow()).widthProperty().addListener((obs, oldVal, newVal) -> {
        listView.refresh();
    });
});

in your case

Platform.runLater(()->{
    ((Stage)myPane.getScene().getWindow()).setOn*whatIwant*(...);
});

Perhaps not relevant if you're looking to do this ONLY using ansible. But it's much easier for me to have a function in my .bash_profile and then run _check_machine host1 host2

function _check_machine() {
    echo 'hostname,num_physical_procs,cores_per_procs,memory,Gen,RH Release,bios_hp_power_profile,bios_intel_qpi_link_power_management,bios_hp_power_regulator,bios_idle_power_state,bios_memory_speed,'
    hostlist=$1
    for h in `echo $hostlist | sed 's/ /\n/g'`;
    do
        echo $h | grep -qE '[a-zA-Z]'
        [ $? -ne 0 ] && h=plabb$h
        echo -n $h,
        ssh root@$h 'grep "^physical id" /proc/cpuinfo | sort -u | wc -l; grep "^cpu cores" /proc/cpuinfo |sort -u | awk "{print \$4}"; awk "{print \$2/1024/1024; exit 0}" /proc/meminfo; /usr/sbin/dmidecode | grep "Product Name"; cat /etc/redhat-release; /etc/facter/bios_facts.sh;' | sed 's/Red at Enterprise Linux Server release //g; s/.*=//g; s/\tProduct Name: ProLiant BL460c //g; s/-//g' | sed 's/Red Hat Enterprise Linux Server release //g; s/.*=//g; s/\tProduct Name: ProLiant BL460c //g; s/-//g' | tr "\n" ","
         echo ''
    done
}

E.g.

$ _machine_info '10 20 1036'
hostname,num_physical_procs,cores_per_procs,memory,Gen,RH Release,bios_hp_power_profile,bios_intel_qpi_link_power_management,bios_hp_power_regulator,bios_idle_power_state,bios_memory_speed,
plabb10,2,4,47.1629,G6,5.11 (Tikanga),Maximum_Performance,Disabled,HP_Static_High_Performance_Mode,No_CStates,1333MHz_Maximum,
plabb20,2,4,47.1229,G6,6.6 (Santiago),Maximum_Performance,Disabled,HP_Static_High_Performance_Mode,No_CStates,1333MHz_Maximum,
plabb1036,2,12,189.12,Gen8,6.6 (Santiago),Custom,Disabled,HP_Static_High_Performance_Mode,No_CStates,1333MHz_Maximum,
$ 

Needless to say function won't work for you as it is. You need to update it appropriately.

Thanks for the answers. Now I know that there are two ways of "SAVE AS" in Vim.

Assumed that I'm editing hello.txt.

• :w world.txt will write hello.txt's content to the file world.txt while keeping hello.txt as the opened buffer in vim.
• :sav world.txt will first write hello.txt's content to the file world.txt, then close buffer hello.txt, finally open world.txt as the current buffer.

It would make for a handy function. Also, note I'm using STUFF instead of SUBSTRING.

create function str2uniq(@s varchar(50)) returns uniqueidentifier as begin
    -- just in case it came in with 0x prefix or dashes...
    set @s = replace(replace(@s,'0x',''),'-','')
    -- inject dashes in the right places
    set @s = stuff(stuff(stuff(stuff(@s,21,0,'-'),17,0,'-'),13,0,'-'),9,0,'-')
    return cast(@s as uniqueidentifier)
end

I usually set it to whatever I expect to be returned from the function.

If a string, than i will set it to an empty string ='', same for object ={} and array=[], integers = 0.

using this method saves me the need to check for null / undefined. my function will know how to handle string/array/object regardless of the result.

What Anthony says is absolutely correct, but I'd like to add that your experience will likely show a lot better performance and efficiency (due not to fpm-vs-fcgi but more to the implementation of your httpd).

For example, I had a quad-core machine running lighttpd + fcgi humming along nicely. I upgraded to a 16-core machine to cope with growth, and two things exploded: RAM usage, and segfaults. I found myself restarting lighttpd every 30 minutes to keep the website up.

I switched to php-fpm and nginx, and RAM usage dropped from >20GB to 2GB. Segfaults disappeared as well. After doing some research, I learned that lighttpd and fcgi don't get along well on multi-core machines under load, and also have memory leak issues in certain instances.

Is this due to php-fpm being better than fcgi? Not entirely, but how you hook into php-fpm seems to be a whole heckuva lot more efficient than how you serve via fcgi.

I've always considered throwing checked exceptions in the constructor to be bad practice, or at least something that should be avoided.

The reason for this is that you cannot do this :

private SomeObject foo = new SomeObject();

Instead you must do this :

private SomeObject foo;
public MyObject() {
    try {
        foo = new SomeObject()
    } Catch(PointlessCheckedException e) {
       throw new RuntimeException("ahhg",e);
    }
}

At the point when I'm constructing SomeObject I know what it's parameters are so why should I be expected to wrap it in a try catch? Ahh you say but if I'm constructing an object from dynamic parameters I don't know if they're valid or not. Well, you could... validate the parameters before passing them to the constructor. That would be good practice. And if all you're concerned about is whether the parameters are valid then you can use IllegalArgumentException.

So instead of throwing checked exceptions just do

public SomeObject(final String param) {
    if (param==null) throw new NullPointerException("please stop");
    if (param.length()==0) throw new IllegalArgumentException("no really, please stop");
}

Of course there are cases where it might just be reasonable to throw a checked exception

public SomeObject() {
    if (todayIsWednesday) throw new YouKnowYouCannotDoThisOnAWednesday();
}

But how often is that likely?

A callback is an idea of passing a function as a parameter to another function and have this one invoked once the process has completed.

If you get the concept of callback through awesome answers above, I recommend you should learn the background of its idea.

"What made them(Computer-Scientists) develop callback?" You might learn a problem, which is blocking.(especially blocking UI) And callback is not the only solution to it. There are a lot of other solutions(ex: Thread, Futures, Promises...).

In case you are using the Map with out generic, then you need to convert the value into String and then try to convert to Long. Below is sample code

    Map map = new HashMap();

    map.put("name", "John");
    map.put("time", "9648512236521");
    map.put("age", "25");

    long time = Long.valueOf((String)map.get("time")).longValue() ;
    int age = Integer.valueOf((String)  map.get("aget")).intValue();
    System.out.println(time);
    System.out.println(age);

first, get the container id of the desired container by

docker ps

you will get something like this:

CONTAINER ID        IMAGE                  COMMAND             CREATED             STATUS                          PORTS                    NAMES
3ac548b6b315        frontend_react-web     "npm run start"     48 seconds ago      Up 47 seconds                   0.0.0.0:3000->3000/tcp   frontend_react-web_1

now copy this container id and run the following command:

docker exec -it container_id sh

docker exec -it 3ac548b6b315 sh

Beware: leaving calls to console in your production code will cause your site to break in Internet Explorer. Never keep it unwrapped. See: https://web.archive.org/web/20150908041020/blog.patspam.com/2009/the-curse-of-consolelog

You cannot multiply an integer by a string. To be sure, you could try using the int (short for integer which means whole number) command, like this for example -

firstNumber = int(9)
secondNumber = int(1)
answer = (firstNumber*secondNumber)

Hope that helped :)

My suggestion is to use a function. But rather than putting the if in the function, which you might be tempted to do, do it like this:

if verbose:
    def verboseprint(*args):
        # Print each argument separately so caller doesn't need to
        # stuff everything to be printed into a single string
        for arg in args:
           print arg,
        print
else:   
    verboseprint = lambda *a: None      # do-nothing function

(Yes, you can define a function in an if statement, and it'll only get defined if the condition is true!)

If you're using Python 3, where print is already a function (or if you're willing to use print as a function in 2.x using from __future__ import print_function) it's even simpler:

verboseprint = print if verbose else lambda *a, **k: None

This way, the function is defined as a do-nothing if verbose mode is off (using a lambda), instead of constantly testing the verbose flag.

If the user could change the verbosity mode during the run of your program, this would be the wrong approach (you'd need the if in the function), but since you're setting it with a command-line flag, you only need to make the decision once.

You then use e.g. verboseprint("look at all my verbosity!", object(), 3) whenever you want to print a "verbose" message.

A great way of handling this is with regular expressions.

string modifiedString = Regex.Replace(originalString, @"(\r\n)|\n|\r", "<br/>");

This will replace any of the 3 legal types of newline with the html tag.

<html>
<head>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4/jquery.min.js"></script>
<script>

function showButtons () { $('#b1, #b2, #b3').show(); }

</script>
<style type="text/css">
#b1, #b2, #b3 {
display: none;
}

</style>
</head>
<body>

<a href="#" onclick="showButtons();">Show me the money!</a>

<input type="submit" id="b1" value="B1" />
<input type="submit" id="b2" value="B2"/>
<input type="submit" id="b3" value="B3" />

</body>
</html>

$.ajax({
       url: "Scripts/testingJSON.json",
           //force to handle it as text
       dataType: "text",
            success: function (dataTest) {

                //data downloaded so we call parseJSON function 
                //and pass downloaded data
                var json = $.parseJSON(dataTest);
                //now json variable contains data in json format
                //let's display a few items
                $.each(json, function (i, jsonObjectList) {
                for (var index = 0; index < jsonObjectList.listValue_.length;index++) {
                      alert(jsonObjectList.listKey_[index][0] + " -- " + jsonObjectList.listValue_[index].description_);
                      }
                 });


             }
  });

Well, the <head> tag has nothing to do with the <header> tag. In the head comes all the metadata and stuff, while the header is just a layout component.
And layout comes into body. So I disagree with you.

This is exactly what I wanted to do. I was not sure of the previous command git cherry-pick C, it sounds nice but it seems you do this to get changes from another branch but not on same branch, has anyone tried it?

So I did something else which also worked : I got the files I wanted back from the old commit file by file

git checkout <commit-hash> <filename>

ex : git checkout 08a6497b76ad098a5f7eda3e4ec89e8032a4da51 file.css

-> this takes the files as they were from the old commit

Then I did my changes. And I committed again.

git status (to check which files were modified)
git diff (to check the changes you made)
git add .
git commit -m "my message"

I checked my history with git log, and I still have my history along with my new changes made from the old files. And I could push too.

Note that to go back to the state you want you need to put the hash of the commit before the unwanted changes. Also make sure you don't have uncommitted changes before you do that.

Good question. I've been using

List<string> myStrings = new List<string>{ "ours", "mine", "yours"};
string joinedString = string.Join(", ", myStrings.ToArray());

It's not LINQ, but it works.

From android API Level 19, when I want to instance JSONArray object I put JSONObject directly as parameter like below:

JSONArray jsonArray=new JSONArray(jsonObject);

JSONArray has constructor to accept object.

What you are probably really wanting to do here is use the union operator like this:

(select ID from Logo where AccountID = 1 and Rendered = 'True')
  union
  (select ID from Design where AccountID = 1 and Rendered = 'True')
  order by ID limit 0, 51

Here's the docs for it https://dev.mysql.com/doc/refman/5.0/en/union.html

As other answers in this thread have pointed out, to resolve this error you need to carefully inspect the code, to understand where the file is getting locked.

In my case, I was sending out the file as an email attachment before performing the move operation.

So the file got locked for couple of seconds until SMTP client finished sending the email.

The solution I adopted was to move the file first, and then send the email. This solved the problem for me.

Another possible solution, as pointed out earlier by Hudson, would've been to dispose the object after use.

public static SendEmail()
{
           MailMessage mMailMessage = new MailMessage();
           //setup other email stuff

            if (File.Exists(attachmentPath))
            {
                Attachment attachment = new Attachment(attachmentPath);
                mMailMessage.Attachments.Add(attachment);
                attachment.Dispose(); //disposing the Attachment object
            }
} 

Updating @stevo.mit's answer for Swift 4.x:

override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
    if let touch = touches.first {
        let currentPoint = touch.location(in: self.view)
        // do something with your currentPoint
    }
}

override func touchesMoved(_ touches: Set<UITouch>, with event: UIEvent?) {
    if let touch = touches.first {
        let currentPoint = touch.location(in: self.view)
        // do something with your currentPoint
    }
}

override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
    if let touch = touches.first {
        let currentPoint = touch.location(in: self.view)
        // do something with your currentPoint
    }
}

The reason everyone always says to avoid System.gc() is that it is a pretty good indicator of fundamentally broken code. Any code that depends on it for correctness is certainly broken; any that rely on it for performance are most likely broken.

You don't know what sort of garbage collector you are running under. There are certainly some that do not "stop the world" as you assert, but some JVMs aren't that smart or for various reasons (perhaps they are on a phone?) don't do it. You don't know what it's going to do.

Also, it's not guaranteed to do anything. The JVM may just entirely ignore your request.

The combination of "you don't know what it will do," "you don't know if it will even help," and "you shouldn't need to call it anyway" are why people are so forceful in saying that generally you shouldn't call it. I think it's a case of "if you need to ask whether you should be using this, you shouldn't"

EDIT to address a few concerns from the other thread:

After reading the thread you linked, there's a few more things I'd like to point out. First, someone suggested that calling gc() may return memory to the system. That's certainly not necessarily true - the Java heap itself grows independently of Java allocations.

As in, the JVM will hold memory (many tens of megabytes) and grow the heap as necessary. It doesn't necessarily return that memory to the system even when you free Java objects; it is perfectly free to hold on to the allocated memory to use for future Java allocations.

To show that it's possible that System.gc() does nothing, view:

http://bugs.sun.com/view_bug.do?bug_id=6668279

and in particular that there's a -XX:DisableExplicitGC VM option.

Cross Browser jQuery Solution! _{Raw available at GitHub}

Fun & Easy to Use!

The following plugin will go through your standard test for various versions of IE, Chrome, Firefox, Safari, etc.. and establish your declared methods accordingly. It also deals with issues such as:

• onblur|.blur/onfocus|.focus "duplicate" calls
• window losing focus through selection of alternate app, like word
• • This tends to be undesirable simply because, if you have a bank page open, and it's onblur event tells it to mask the page, then if you open calculator, you can't see the page anymore!
• Not triggering on page load

Use is as simple as: _{Scroll Down to 'Run Snippet'}

$.winFocus(function(event, isVisible) {
    console.log("Combo\t\t", event, isVisible);
});

//  OR Pass False boolean, and it will not trigger on load,
//  Instead, it will first trigger on first blur of current tab_window
$.winFocus(function(event, isVisible) {
    console.log("Combo\t\t", event, isVisible);
}, false);

//  OR Establish an object having methods "blur" & "focus", and/or "blurFocus"
//  (yes, you can set all 3, tho blurFocus is the only one with an 'isVisible' param)
$.winFocus({
    blur: function(event) {
        console.log("Blur\t\t", event);
    },
    focus: function(event) {
        console.log("Focus\t\t", event);
    }
});

//  OR First method becoms a "blur", second method becoms "focus"!
$.winFocus(function(event) {
    console.log("Blur\t\t", event);
},
function(event) {
    console.log("Focus\t\t", event);
});

/*    Begin Plugin    */_x000D_
;;(function($){$.winFocus||($.extend({winFocus:function(){var a=!0,b=[];$(document).data("winFocus")||$(document).data("winFocus",$.winFocus.init());for(x in arguments)"object"==typeof arguments[x]?(arguments[x].blur&&$.winFocus.methods.blur.push(arguments[x].blur),arguments[x].focus&&$.winFocus.methods.focus.push(arguments[x].focus),arguments[x].blurFocus&&$.winFocus.methods.blurFocus.push(arguments[x].blurFocus),arguments[x].initRun&&(a=arguments[x].initRun)):"function"==typeof arguments[x]?b.push(arguments[x]):_x000D_
"boolean"==typeof arguments[x]&&(a=arguments[x]);b&&(1==b.length?$.winFocus.methods.blurFocus.push(b[0]):($.winFocus.methods.blur.push(b[0]),$.winFocus.methods.focus.push(b[1])));if(a)$.winFocus.methods.onChange()}}),$.winFocus.init=function(){$.winFocus.props.hidden in document?document.addEventListener("visibilitychange",$.winFocus.methods.onChange):($.winFocus.props.hidden="mozHidden")in document?document.addEventListener("mozvisibilitychange",$.winFocus.methods.onChange):($.winFocus.props.hidden=_x000D_
"webkitHidden")in document?document.addEventListener("webkitvisibilitychange",$.winFocus.methods.onChange):($.winFocus.props.hidden="msHidden")in document?document.addEventListener("msvisibilitychange",$.winFocus.methods.onChange):($.winFocus.props.hidden="onfocusin")in document?document.onfocusin=document.onfocusout=$.winFocus.methods.onChange:window.onpageshow=window.onpagehide=window.onfocus=window.onblur=$.winFocus.methods.onChange;return $.winFocus},$.winFocus.methods={blurFocus:[],blur:[],focus:[],_x000D_
exeCB:function(a){$.winFocus.methods.blurFocus&&$.each($.winFocus.methods.blurFocus,function(b,c){this.apply($.winFocus,[a,!a.hidden])});a.hidden&&$.winFocus.methods.blur&&$.each($.winFocus.methods.blur,function(b,c){this.apply($.winFocus,[a])});!a.hidden&&$.winFocus.methods.focus&&$.each($.winFocus.methods.focus,function(b,c){this.apply($.winFocus,[a])})},onChange:function(a){var b={focus:!1,focusin:!1,pageshow:!1,blur:!0,focusout:!0,pagehide:!0};if(a=a||window.event)a.hidden=a.type in b?b[a.type]:_x000D_
document[$.winFocus.props.hidden],$(window).data("visible",!a.hidden),$.winFocus.methods.exeCB(a);else try{$.winFocus.methods.onChange.call(document,new Event("visibilitychange"))}catch(c){}}},$.winFocus.props={hidden:"hidden"})})(jQuery);_x000D_
/*    End Plugin      */_x000D_
_x000D_
// Simple example_x000D_
$(function() {_x000D_
 $.winFocus(function(event, isVisible) {_x000D_
  $('td tbody').empty();_x000D_
  $.each(event, function(i) {_x000D_
   $('td tbody').append(_x000D_
    $('<tr />').append(_x000D_
     $('<th />', { text: i }),_x000D_
     $('<td />', { text: this.toString() })_x000D_
    )_x000D_
   )_x000D_
  });_x000D_
  if (isVisible) _x000D_
   $("#isVisible").stop().delay(100).fadeOut('fast', function(e) {_x000D_
    $('body').addClass('visible');_x000D_
    $(this).stop().text('TRUE').fadeIn('slow');_x000D_
   });_x000D_
  else {_x000D_
   $('body').removeClass('visible');_x000D_
   $("#isVisible").text('FALSE');_x000D_
  }_x000D_
 });_x000D_
})

body { background: #AAF; }_x000D_
table { width: 100%; }_x000D_
table table { border-collapse: collapse; margin: 0 auto; width: auto; }_x000D_
tbody > tr > th { text-align: right; }_x000D_
td { width: 50%; }_x000D_
th, td { padding: .1em .5em; }_x000D_
td th, td td { border: 1px solid; }_x000D_
.visible { background: #FFA; }

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>_x000D_
<h3>See Console for Event Object Returned</h3>_x000D_
<table>_x000D_
    <tr>_x000D_
        <th><p>Is Visible?</p></th>_x000D_
        <td><p id="isVisible">TRUE</p></td>_x000D_
    </tr>_x000D_
    <tr>_x000D_
        <td colspan="2">_x000D_
            <table>_x000D_
                <thead>_x000D_
                    <tr>_x000D_
                        <th colspan="2">Event Data <span style="font-size: .8em;">{ See Console for More Details }</span></th>_x000D_
                    </tr>_x000D_
                </thead>_x000D_
                <tbody></tbody>_x000D_
            </table>_x000D_
        </td>_x000D_
    </tr>_x000D_
</table>

• Inner join - An inner join using either of the equivalent queries gives the intersection of the two tables, i.e. the two rows they have in common.

• Left outer join - A left outer join will give all rows in A, plus any common rows in B.

• Full outer join - A full outer join will give you the union of A and B, i.e. All the rows in A and all the rows in B. If something in A doesn't have a corresponding datum in B, then the B portion is null, and vice versay

There is no difference. Both will work in the same way.

CSS background properties are used to define the background effects of an element.

CSS properties used for background effects:

• background-color
• background-image
• background-repeat
• background-attachment
• background-position

Background property includes all of this properties and you can just write them in one line.

REST is somewhat of a revival of old-school HTTP, where the actual HTTP verbs (commands) have semantic meaning. Til recently, apps that wanted to update stuff on the server would supply a form containing an 'action' variable and a bunch of data. The HTTP command would almost always be GET or POST, and would be almost irrelevant. (Though there's almost always been a proscription against using GET for operations that have side effects, in reality a lot of apps don't care about the command used.)

With REST, you might instead PUT /profiles/cHao and send an XML or JSON representation of the profile info. (Or rather, I would -- you would have to update your own profile. :) That'd involve logging in, usually through HTTP's built-in authentication mechanisms.) In the latter case, what you want to do is specified by the URL, and the request body is just the guts of the resource involved.

http://en.wikipedia.org/wiki/Representational_State_Transfer has some details.

You are trying to use the wrong interface type. The type Function is not appropriate in this case because it receives a parameter and has a return value. Instead you should use Consumer (formerly known as Block)

The Function type is declared as

interface Function<T,R> {
  R apply(T t);
}

However, the Consumer type is compatible with that you are looking for:

interface Consumer<T> {
   void accept(T t);
}

As such, Consumer is compatible with methods that receive a T and return nothing (void). And this is what you want.

For instance, if I wanted to display all element in a list I could simply create a consumer for that with a lambda expression:

List<String> allJedi = asList("Luke","Obiwan","Quigon");
allJedi.forEach( jedi -> System.out.println(jedi) );

You can see above that in this case, the lambda expression receives a parameter and has no return value.

Now, if I wanted to use a method reference instead of a lambda expression to create a consume of this type, then I need a method that receives a String and returns void, right?.

I could use different types of method references, but in this case let's take advantage of an object method reference by using the println method in the System.out object, like this:

Consumer<String> block = System.out::println

Or I could simply do

allJedi.forEach(System.out::println);

The println method is appropriate because it receives a value and has a return type void, just like the accept method in Consumer.

So, in your code, you need to change your method signature to somewhat like:

public static void myForEach(List<Integer> list, Consumer<Integer> myBlock) {
   list.forEach(myBlock);
}

And then you should be able to create a consumer, using a static method reference, in your case by doing:

myForEach(theList, Test::displayInt);

Ultimately, you could even get rid of your myForEach method altogether and simply do:

theList.forEach(Test::displayInt);

About Functions as First Class Citizens

All been said, the truth is that Java 8 will not have functions as first-class citizens since a structural function type will not be added to the language. Java will simply offer an alternative way to create implementations of functional interfaces out of lambda expressions and method references. Ultimately lambda expressions and method references will be bound to object references, therefore all we have is objects as first-class citizens. The important thing is the functionality is there since we can pass objects as parameters, bound them to variable references and return them as values from other methods, then they pretty much serve a similar purpose.

See the 'non-fast forward' section of 'git push --help' for details.

You can perform "git pull", resolve potential conflicts, and "git push" the result. A "git pull" will create a merge commit C between commits A and B.

Alternatively, you can rebase your change between X and B on top of A, with "git pull --rebase", and push the result back. The rebase will create a new commit D that builds the change between X and B on top of A.

I did it! Using <intent-filter>. Put the following into your manifest file:

<intent-filter>
  <action android:name="android.intent.action.VIEW" />
  <category android:name="android.intent.category.DEFAULT" />
  <category android:name="android.intent.category.BROWSABLE" />
  <data android:host="www.youtube.com" android:scheme="http" />
</intent-filter>

This works perfectly!

You can use /* tslint:disable-next-line */ to locally disable tslint. However, as this is a compiler error disabling tslint might not help.

You can always temporarily cast $ to any:

delete ($ as any).summernote.options.keyMap.pc.TAB

which will allow you to access whatever properties you want.

Edit: As of Typescript 2.6, you can now bypass a compiler error/warning for a specific line:

if (false) {
    // @ts-ignore: Unreachable code error
    console.log("hello");
}

Note that the official docs "recommend you use [this] very sparingly". It is almost always preferable to cast to any instead as that better expresses intent.

I made a CSS approach to this that is sized by the viewport width, but maxes out at 100% of the viewport height. It doesn't require box-sizing:border-box. If a pseudo element cannot be used, the pseudo-code's CSS can be applied to a child. Demo

.container {
  position: relative;
  max-width:100vh;
  max-height:100%;
  margin:0 auto;
  overflow: hidden;
}
.container:before {
  content: "";
  display: block;
  margin-top: 100%;
}
.child {
  position: absolute;
  top: 0;
  left: 0;
}

Support table for viewport units

I wrote about this approach and others in a CSS-Tricks article on scaling responsive animations that you should check out.

I tried the above solutions but the following worked on me

export JAVA_HOME=/usr/java/default

You need some sort of Inter Process Communication. Use a pipe or a shared buffer.

for all windows os

cd C:\Program Files (x86)\Git\bin
ssh-keygen

You can use this to solve your problem:

private async void btn_Go_Click(object sender, RoutedEventArgs e)
{
    HttpClient webClient = new HttpClient();
    Uri uri = new Uri("http://www.school-link.net/webservice/get_student/?id=" + txtVCode.Text);
    HttpResponseMessage response = await webClient.GetAsync(uri);
    var jsonString = await response.Content.ReadAsStringAsync();
    var _Data = JsonConvert.DeserializeObject <List<Student>>(jsonString);
    foreach (Student Student in _Data)
    {
        tb1.Text = Student.student_name;
    }
}

Just use the max function and group function

    select max(taskhistory.id) as id from taskhistory
            group by taskhistory.taskid
            order by taskhistory.datum desc

Here are two more ways of finding a duplicate.

Use a set

require 'set'

def find_a_dup_using_set(arr)
  s = Set.new
  arr.find { |e| !s.add?(e) }
end

find_a_dup_using_set arr
  #=> "hello" 

Use select in place of find to return an array of all duplicates.

Use Array#difference

class Array
  def difference(other)
    h = other.each_with_object(Hash.new(0)) { |e,h| h[e] += 1 }
    reject { |e| h[e] > 0 && h[e] -= 1 }
  end
end

def find_a_dup_using_difference(arr)
  arr.difference(arr.uniq).first
end

find_a_dup_using_difference arr
  #=> "hello" 

Drop .first to return an array of all duplicates.

Both methods return nil if there are no duplicates.

I proposed that Array#difference be added to the Ruby core. More information is in my answer here.

Benchmark

Let's compare suggested methods. First, we need an array for testing:

CAPS = ('AAA'..'ZZZ').to_a.first(10_000)
def test_array(nelements, ndups)
  arr = CAPS[0, nelements-ndups]
  arr = arr.concat(arr[0,ndups]).shuffle
end

and a method to run the benchmarks for different test arrays:

require 'fruity'

def benchmark(nelements, ndups)
  arr = test_array nelements, ndups
  puts "\n#{ndups} duplicates\n"    
  compare(
    Naveed:    -> {arr.detect{|e| arr.count(e) > 1}},
    Sergio:    -> {(arr.inject(Hash.new(0)) {|h,e| h[e] += 1; h}.find {|k,v| v > 1} ||
                     [nil]).first },
    Ryan:      -> {(arr.group_by{|e| e}.find {|k,v| v.size > 1} ||
                     [nil]).first},
    Chris:     -> {arr.detect {|e| arr.rindex(e) != arr.index(e)} },
    Cary_set:  -> {find_a_dup_using_set(arr)},
    Cary_diff: -> {find_a_dup_using_difference(arr)}
  )
end

I did not include @JjP's answer because only one duplicate is to be returned, and when his/her answer is modified to do that it is the same as @Naveed's earlier answer. Nor did I include @Marin's answer, which, while posted before @Naveed's answer, returned all duplicates rather than just one (a minor point but there's no point evaluating both, as they are identical when return just one duplicate).

I also modified other answers that returned all duplicates to return just the first one found, but that should have essentially no effect on performance, as they computed all duplicates before selecting one.

The results for each benchmark are listed from fastest to slowest:

First suppose the array contains 100 elements:

benchmark(100, 0)
0 duplicates
Running each test 64 times. Test will take about 2 seconds.
Cary_set is similar to Cary_diff
Cary_diff is similar to Ryan
Ryan is similar to Sergio
Sergio is faster than Chris by 4x ± 1.0
Chris is faster than Naveed by 2x ± 1.0

benchmark(100, 1)
1 duplicates
Running each test 128 times. Test will take about 2 seconds.
Cary_set is similar to Cary_diff
Cary_diff is faster than Ryan by 2x ± 1.0
Ryan is similar to Sergio
Sergio is faster than Chris by 2x ± 1.0
Chris is faster than Naveed by 2x ± 1.0

benchmark(100, 10)
10 duplicates
Running each test 1024 times. Test will take about 3 seconds.
Chris is faster than Naveed by 2x ± 1.0
Naveed is faster than Cary_diff by 2x ± 1.0 (results differ: AAC vs AAF)
Cary_diff is similar to Cary_set
Cary_set is faster than Sergio by 3x ± 1.0 (results differ: AAF vs AAC)
Sergio is similar to Ryan

Now consider an array with 10,000 elements:

benchmark(10000, 0)
0 duplicates
Running each test once. Test will take about 4 minutes.
Ryan is similar to Sergio
Sergio is similar to Cary_set
Cary_set is similar to Cary_diff
Cary_diff is faster than Chris by 400x ± 100.0
Chris is faster than Naveed by 3x ± 0.1

benchmark(10000, 1)
1 duplicates
Running each test once. Test will take about 1 second.
Cary_set is similar to Cary_diff
Cary_diff is similar to Sergio
Sergio is similar to Ryan
Ryan is faster than Chris by 2x ± 1.0
Chris is faster than Naveed by 2x ± 1.0

benchmark(10000, 10)
10 duplicates
Running each test once. Test will take about 11 seconds.
Cary_set is similar to Cary_diff
Cary_diff is faster than Sergio by 3x ± 1.0 (results differ: AAE vs AAA)
Sergio is similar to Ryan
Ryan is faster than Chris by 20x ± 10.0
Chris is faster than Naveed by 3x ± 1.0

benchmark(10000, 100)
100 duplicates
Cary_set is similar to Cary_diff
Cary_diff is faster than Sergio by 11x ± 10.0 (results differ: ADG vs ACL)
Sergio is similar to Ryan
Ryan is similar to Chris
Chris is faster than Naveed by 3x ± 1.0

Note that find_a_dup_using_difference(arr) would be much more efficient if Array#difference were implemented in C, which would be the case if it were added to the Ruby core.

Conclusion

Many of the answers are reasonable but using a Set is the clear best choice. It is fastest in the medium-hard cases, joint fastest in the hardest and only in computationally trivial cases - when your choice won't matter anyway - can it be beaten.

The one very special case in which you might pick Chris' solution would be if you want to use the method to separately de-duplicate thousands of small arrays and expect to find a duplicate typically less than 10 items in. This will be a bit faster as it avoids the small additional overhead of creating the Set.

-XX:PermSize specifies the initial size that will be allocated during startup of the JVM. If necessary, the JVM will allocate up to -XX:MaxPermSize.

You should add the g modifier so that sed performs a global substitution of the contents of the pattern buffer:

echo dog dog dos | sed -e 's:dog:log:g'

For a fantastic documentation on sed, check http://www.grymoire.com/Unix/Sed.html. This global flag is explained here: http://www.grymoire.com/Unix/Sed.html#uh-6

The official documentation for GNU sed is available at http://www.gnu.org/software/sed/manual/

You can use CAST and CONVERT to switch between different types of encodings. See: http://dev.mysql.com/doc/refman/5.0/en/charset-convert.html

SELECT column1, CONVERT(column2 USING utf8)
FROM my_table 
WHERE my_condition;

Look at the MSDN blog which details out this error:

Removing Connections

The connection pooler removes a connection from the pool after it has been idle for a long time, or if the pooler detects that the connection with the server has been severed.

Note that a severed connection can be detected only after attempting to communicate with the server. If a connection is found that is no longer connected to the server, it is marked as invalid.

Invalid connections are removed from the connection pool only when they are closed or reclaimed.

If a connection exists to a server that has disappeared, this connection can be drawn from the pool even if the connection pooler has not detected the severed connection and marked it as invalid.

This is the case because the overhead of checking that the connection is still valid would eliminate the benefits of having a pooler by causing another round trip to the server to occur.

When this occurs, the first attempt to use the connection will detect that the connection has been severed, and an exception is thrown.

Basically what you are seeing is that exception in the last sentence.

A connection is taken from the connection pool, the application does not know that the physical connection is gone, an attempt to use it is done under the assumption that the physical connection is still there.

And you get your exception.

There are a few common reasons for this.

1. The server has been restarted, this will close the existing connections.

In this case, have a look at the SQL Server log, usually found at: C:\Program Files\Microsoft SQL Server\\MSSQL\LOG

If the timestamp for startup is very recent, then we can suspect that this is what caused the error. Try to correlate this timestamp with the time of exception.

2009-04-16 11:32:15.62 Server Logging SQL Server messages in file ‘C:\Program Files\Microsoft SQL Server\MSSQL.1\MSSQL\LOG\ERRORLOG’.

2. Someone or something has killed the SPID that is being used.

Again, take a look in the SQL Server log. If you find a kill, try to correlate this timestamp with the time of exception.

2009-04-16 11:34:09.57 spidXX Process ID XX was killed by hostname xxxxx, host process ID XXXX.

3. There is a failover (in a mirror setup for example) again, take a look in the SQL Server log.

If there is a failover, try to correlate this timestamp with the time of exception.

2009-04-16 11:35:12.93 spidXX The mirrored database “” is changing roles from “PRINCIPAL” to “MIRROR” due to Failover.

I had the same issue with the following conditions:

• The resource files are in the same package as the java source files, in the java source folder (src/test/java).
• I build the project with maven on the command line and the build failed on the tests with the NullPointerException.
• The command line build did not copy the resource files to the test-classes folder, which explained the build failure.
• When going to eclipse after the command line build and rerun the tests in eclipse I also got the NullPointerException in eclipse.
• When I cleaned the project (deleted the content of the target folder) and rebuild the project in Eclipse the test did run correctly. This explains why it runs when you start with a clean project.

I fixed this by placing the resource files in the resources folder in test: src/test/resources using the same package structure as the source class.

BTW I used getClass().getResource(...)

public Integer binaryToInteger(String binary){
    char[] numbers = binary.toCharArray();
    Integer result = 0;
    int count = 0;
    for(int i=numbers.length-1;i>=0;i--){
         if(numbers[i]=='1')result+=(int)Math.pow(2, count);
         count++;
    }
    return result;
}

I guess I'm even more bored! Modified Hassan's answer to function correctly.

HTML5 introduced a file upload api that allows you to monitor the progress of file uploads but for older browsers there's plupload a framework that specifically made to monitor file uploads and give information about them. plus it has plenty of callbacks so it can work across all browsers

I used a formula that I got from www.geomidpoint.com and wrote the following C++ implementation. The array and geocoords are my own classes whose functionality should be self-explanatory.

/*
 * midpoints calculated using formula from www.geomidpoint.com
 */
   geocoords geocoords::calcmidpoint( array<geocoords>& points )
   {
      if( points.empty() ) return geocoords();

      float cart_x = 0,
            cart_y = 0,
            cart_z = 0;

      for( auto& point : points )
      {
         cart_x += cos( point.lat.rad() ) * cos( point.lon.rad() );
         cart_y += cos( point.lat.rad() ) * sin( point.lon.rad() );
         cart_z += sin( point.lat.rad() );
      }

      cart_x /= points.numelems();
      cart_y /= points.numelems();
      cart_z /= points.numelems();

      geocoords mean;

      mean.lat.rad( atan2( cart_z, sqrt( pow( cart_x, 2 ) + pow( cart_y, 2 ))));
      mean.lon.rad( atan2( cart_y, cart_x ));

      return mean;
   }

If you want to search on both FROM and TO airports, you'll want to join on the Airports table twice - then you can use both from and to tables in your results set:

SELECT
   Flights.*,fromAirports.*,toAirports.*
FROM
   Flights
INNER JOIN 
   Airports fromAirports on Flights.fairport = fromAirports.code
INNER JOIN 
   Airports toAirports on Flights.tairport = toAirports.code
WHERE
 ...

You can try this:

var latExp = /^(?=.)-?((8[0-5]?)|([0-7]?[0-9]))?(?:\.[0-9]{1,20})?$/;
var lngExp = /^(?=.)-?((0?[8-9][0-9])|180|([0-1]?[0-7]?[0-9]))?(?:\.[0-9]{1,20})?$/;

It sounds like perhaps the class is not the UITableViewDelegate for that table view, though UITableViewController is supposed to set that automatically.

Any chance you reset the delegate to some other class?

You can use its Unicode HTML

So to add a user icon, just add  to the placeholder attribute, or wherever you want it.

You may want to check this cheat sheet.

Example:

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">_x000D_
<input type="text" class="form-control" placeholder="&#xe008; placeholder..." style="font-family: 'Glyphicons Halflings', Arial">_x000D_
<input type="text" class="form-control" value="&#xe008; value..." style="font-family: 'Glyphicons Halflings', Arial">_x000D_
<input type="submit" class="btn btn-primary" value="&#xe008; submit-button" style="font-family: 'Glyphicons Halflings', Arial">

Don't forget to set the input's font to the Glyphicon one, using the following code: font-family: 'Glyphicons Halflings', Arial, where Arial is the font of the regular text in the input.

Here is a nice tutorial, which describes callbacks and the use-case well.

The concept of callbacks is to inform a class synchronous / asynchronous if some work in another class is done. Some call it the Hollywood principle: "Don't call us we call you".

Here's a example:

class A implements ICallback {
     MyObject o;
     B b = new B(this, someParameter);

     @Override
     public void callback(MyObject o){
           this.o = o;
     }
}

class B {
     ICallback ic;
     B(ICallback ic, someParameter){
         this.ic = ic;
     }

    new Thread(new Runnable(){
         public void run(){
             // some calculation
             ic.callback(myObject)
         }
    }).start(); 
}

interface ICallback{
    public void callback(MyObject o);
}

Class A calls Class B to get some work done in a Thread. If the Thread finished the work, it will inform Class A over the callback and provide the results. So there is no need for polling or something. You will get the results as soon as they are available.

In Android Callbacks are used f.e. between Activities and Fragments. Because Fragments should be modular you can define a callback in the Fragment to call methods in the Activity.

Try this: Go to File> invalidate Caches/Restart then click on Invalidate and Restart button from the pop up. Now, try running your project.

The following signature will do:

List<Email> findByEmailIdInAndPincodeIn(List<String> emails, List<String> pinCodes);

Spring Data JPA supports a large number of keywords to build a query. IN and AND are among them.

Here's a nice fun LINQ example.

public static byte[] StringToByteArray(string hex) {
    return Enumerable.Range(0, hex.Length)
                     .Where(x => x % 2 == 0)
                     .Select(x => Convert.ToByte(hex.Substring(x, 2), 16))
                     .ToArray();
}

Should look like this:

UPDATE DHE.dbo.tblAccounts
   SET DHE.dbo.tblAccounts.ControllingSalesRep = 
       DHE_Import.dbo.tblSalesRepsAccountsLink.SalesRepCode
  from DHE.dbo.tblAccounts 
     INNER JOIN DHE_Import.dbo.tblSalesRepsAccountsLink 
        ON DHE.dbo.tblAccounts.AccountCode =
           DHE_Import.tblSalesRepsAccountsLink.AccountCode 

Update table is repeated in FROM clause.

It is possible. Have a look at JSch.addIdentity(...)

This allows you to use key either as byte array or to read it from file.

import com.jcraft.jsch.Channel;
import com.jcraft.jsch.ChannelSftp;
import com.jcraft.jsch.JSch;
import com.jcraft.jsch.Session;

public class UserAuthPubKey {
    public static void main(String[] arg) {
        try {
            JSch jsch = new JSch();

            String user = "tjill";
            String host = "192.18.0.246";
            int port = 10022;
            String privateKey = ".ssh/id_rsa";

            jsch.addIdentity(privateKey);
            System.out.println("identity added ");

            Session session = jsch.getSession(user, host, port);
            System.out.println("session created.");

            // disabling StrictHostKeyChecking may help to make connection but makes it insecure
            // see http://stackoverflow.com/questions/30178936/jsch-sftp-security-with-session-setconfigstricthostkeychecking-no
            // 
            // java.util.Properties config = new java.util.Properties();
            // config.put("StrictHostKeyChecking", "no");
            // session.setConfig(config);

            session.connect();
            System.out.println("session connected.....");

            Channel channel = session.openChannel("sftp");
            channel.setInputStream(System.in);
            channel.setOutputStream(System.out);
            channel.connect();
            System.out.println("shell channel connected....");

            ChannelSftp c = (ChannelSftp) channel;

            String fileName = "test.txt";
            c.put(fileName, "./in/");
            c.exit();
            System.out.println("done");

        } catch (Exception e) {
            System.err.println(e);
        }
    }
}

I would do using String#tr :

"1,112".tr(',','').to_i # => 1112

I was facing the similar type of issue: Code Snippet :

<c:forEach items="${orderList}" var="xx"> ${xx.id} <br>
</c:forEach>

There was a space after orderlist like this : "${orderList} " because of which the xx variable was getting coverted into String and was not able to call xx.id.

So make sure about space. They play crucial role sometimes. :p

This doesn't seem to be a problem on a Core 2 Duo running Windows XP and JRE 1.5.0_06.

In a test with three threads I don't see System.nanoTime() going backwards. The processors are both busy, and threads go to sleep occasionally to provoke moving threads around.

[EDIT] I would guess that it only happens on physically separate processors, i.e. that the counters are synchronized for multiple cores on the same die.

You could do something like this:

<body>

<textarea id="txtArea" onkeypress="onTestChange();"></textarea>

<script>
function onTestChange() {
    var key = window.event.keyCode;

    // If the user has pressed enter
    if (key === 13) {
        document.getElementById("txtArea").value = document.getElementById("txtArea").value + "\n*";
        return false;
    }
    else {
        return true;
    }
}
</script>

</body>

Although the new line character feed from pressing enter will still be there, but its a start to getting what you want.

For .NET Core, there is a Visual Studio 2017 bug that can cause the project properties Build page to show the incorrect platform target. Once you discover that the problem is, the workarounds are pretty easy. You can change the target to some other value and then change it back.

Alternatively, you can add a runtime identifier to the .csproj. If you need your .exe to run as x86 so that it can load a x86 native DLL, add this element within a PropertyGroup:

<RuntimeIdentifier>win-x86</RuntimeIdentifier>

A good place to put this is right after the TargetFramework or TargetFrameworks element.

Might want to include the old A: and B: drives as you never know who might be using them! I got tired of USB drives bumping my two SDHC drives that are just for Readyboost. I had been assigning them to High letters Z: Y: with a utility that will assign drive letters to devices as you wish. I wondered.... Can I make a Readyboost drive letter A: ? YES! Can I put my second SDHC drive letter as B: ? YES!

I've used Floppy Drives back in the day, never thought that A: or B: would come in handy for Readyboost.

My point is, don't assume A: & B: will not be used by anyone for anything You might even find the old SUBST command being used!

EDIT: This is not working with latest version of 63.0+

I was able to disable it using help from one of above comments, go to

chrome://flags/#enable-webfonts-intervention-v2

The trick is to also disable the "Trigger User Agent Intervention for WebFonts loading always" option just below that as well.

argThat plus lambda

that is how you can fail your argument verification:

    verify(mock).mymethod(argThat(
      (x)->false
    ));

where

import static org.mockito.ArgumentMatchers.argThat;
import static org.mockito.Mockito.verify;

argThat plus asserts

the above test will "say" Expected: lambda$... Was: YourClass.toSting.... You can get a more specific cause of the failure if to use asserts in the the lambda:

    verify(mock).mymethod(argThat( x -> {
      assertThat(x).isNotNull();
      assertThat(x.description).contains("KEY");
      return true;
    }));

??BUT??: THIS ONLY WORKS WHEN

• THE CALL IS EXPECTED 1 TIME, or
• the call is expected 2+ times, but all the times the verifier matches (returns true).

If the verified method called 2+ times, mockito passes all the called combinations to each verifier. So mockito expects your verifier silently returns true for one of the argument set, and false (no assert exceptions) for other valid calls. That expectation is not a problem for 1 method call - it should just return true 1 time.

import static org.assertj.core.api.Assertions.assertThat;
import static org.mockito.ArgumentMatchers.argThat;
import static org.mockito.Mockito.verify;

Now the failed test will say: Expected: Obj.description to contain 'KEY'. Was: 'Actual description'. NOTE: I used assertJ asserts, but it's up to you which assertion framework to use.

argThat with multiple arguments.

If you use argThat, all arguments must be provided with matches. E.g.:

    verify(mock).mymethod(eq("VALUE_1"), argThat((x)->false));
    // above is correct as eq() is also an argument matcher.

verify(mock).mymethod("VALUE_1", argThat((x)->false));

// above is incorrect; an exceptoin will be thrown, as the fist arg. is given without an argument matcher.

where:

import static org.mockito.ArgumentMatchers.argThat;
import static org.mockito.ArgumentMatchers.eq;
import static org.mockito.Mockito.verify;

eq matcher

the easiest way to check if the argument is equal:

verify(mock).mymethod(eq(expectedValue));
// NOTE:   ^ where the parentheses must be closed.

direct argument

if comparison by ref is acceptable, then go on with:

verify(mock).mymethod(expectedArg);
// NOTE:   ^ where the parentheses must be closed.

THE ROOT CAUSE of original question failure was the wrong place of the paranthes: verify(mock.mymethod.... That was wrong. The right would be: verify(mock).*

It was probably discussed, but as of CSS3 there is nothing like what you need (see also "Is there a CSS selector for elements containing certain text?"). You will have to use additional markup, like this:

<li><span class="foo">some text</span></li>
<li>some other text</li>

Then refer to it the usual way:

li > span.foo {...}

Casting the integer to a char will do what you want.

char theChar=' ';
int theInt = 97;
theChar=(char) theInt;

cout<<theChar<<endl;

There is no difference between 'a' and 97 besides the way you interperet them.

\includegraphics{myfig.pdf}

You can have multiple contexts for single database. It can be useful for example if your database contains multiple database schemas and you want to handle each of them as separate self contained area.

The problem is when you want to use code first to create your database - only single context in your application can do that. The trick for this is usually one additional context containing all your entities which is used only for database creation. Your real application contexts containing only subsets of your entities must have database initializer set to null.

There are other issues you will see when using multiple context types - for example shared entity types and their passing from one context to another, etc. Generally it is possible, it can make your design much cleaner and separate different functional areas but it has its costs in additional complexity.

I've got the same problem in Docker.

In Docker I keep trained LightGBM model + Flask serving requests. As HTTP server I used gunicorn 19.9.0. When I run my code locally on my Mac laptop everything worked just perfect, but when I ran the app in Docker my POST JSON requests were freezing for some time, then gunicorn worker had been failing with [CRITICAL] WORKER TIMEOUT exception.

I tried tons of different approaches, but the only one solved my issue was adding worker_class=gthread.

Here is my complete config:

import multiprocessing

workers = multiprocessing.cpu_count() * 2 + 1
accesslog = "-" # STDOUT
access_log_format = '%(h)s %(l)s %(u)s %(t)s "%(r)s" %(s)s %(b)s "%(q)s" "%(D)s"'
bind = "0.0.0.0:5000"
keepalive = 120
timeout = 120
worker_class = "gthread"
threads = 3

Try making an OAuth-authenticated request using your token to https://www.google.com/accounts/AuthSubTokenInfo. This is only documented to work for AuthSub, but it works for OAuth too. It won't tell you which user the token is for, but it will tell you which services it's valid for, and the request will fail if the token is invalid or has been revoked.

One use for the 'Unary Scope Resolution Operator' or 'Colon Colon Operator' is for local and global variable selection of identical names:

    #include <iostream>
    using namespace std;
    
    int variable = 20;
    
    int main()
    {
    float variable = 30;
    
    cout << "This is local to the main function: " << variable << endl;
    cout << "This is global to the main function: " << ::variable << endl;
    
    return 0;
    }

The resulting output would be:

This is local to the main function: 30

This is global to the main function: 20

Other uses could be: Defining a function from outside of a class, to access a static variable within a class or to use multiple inheritance.

public void setHoursWorked(){
    hoursWorked = hours;
}

You haven't defined hours inside that method. hours is not passed in as a parameter, it's not declared as a variable, and it's not being used as a class member, so you get that error.

"matt b" has it right, but to be specific, the "install" goal copies your built target to the local repository on your file system; useful for small changes across projects not currently meant for the full group.

The "deploy" goal uploads it to your shared repository for when your work is finished, and then can be shared by other people who require it for their project.

In your case, it seems that "install" is used to make the management of the deployment easier since CI's local repo is the shared repo. If CI was on another box, it would have to use the "deploy" goal.

The message is actually pretty clear: something creates a ThreadLocal with value of type org.apache.axis.MessageContext - this is a great hint. It most likely means that Apache Axis framework forgot/failed to cleanup after itself. The same problem occurred for instance in Logback. You shouldn't bother much, but reporting a bug to Axis team might be a good idea.

Tomcat reports this error because the ThreadLocals are created per HTTP worker threads. Your application is undeployed but HTTP threads remain - and these ThreadLocals as well. This may lead to memory leaks (org.apache.axis.MessageContext can't be unloaded) and some issues when these threads are reused in the future.

For details see: http://wiki.apache.org/tomcat/MemoryLeakProtection

It's because you haven't declared outchar before you use it. That means that the compiler will assume it's a function returning an int and taking an undefined number of undefined arguments.

You need to add a prototype pf the function before you use it:

void outchar(char);  /* Prototype (declaration) of a function to be called */  int main(void) {     ... }  void outchar(char ch) {     ... } 

Note the declaration of the main function differs from your code as well. It's actually a part of the official C specification, it must return an int and must take either a void argument or an int and a char** argument.

@ImportanceOfBeingErnest 's answer is good if you only want to change the linewidth inside the legend box. But I think it is a bit more complex since you have to copy the handles before changing legend linewidth. Besides, it can not change the legend label fontsize. The following two methods can not only change the linewidth but also the legend label text font size in a more concise way.

Method 1

import numpy as np
import matplotlib.pyplot as plt

# make some data
x = np.linspace(0, 2*np.pi)

y1 = np.sin(x)
y2 = np.cos(x)

# plot sin(x) and cos(x)
fig = plt.figure()
ax  = fig.add_subplot(111)
ax.plot(x, y1, c='b', label='y1')
ax.plot(x, y2, c='r', label='y2')

leg = plt.legend()
# get the individual lines inside legend and set line width
for line in leg.get_lines():
    line.set_linewidth(4)
# get label texts inside legend and set font size
for text in leg.get_texts():
    text.set_fontsize('x-large')

plt.savefig('leg_example')
plt.show()

Method 2

import numpy as np
import matplotlib.pyplot as plt

# make some data
x = np.linspace(0, 2*np.pi)

y1 = np.sin(x)
y2 = np.cos(x)

# plot sin(x) and cos(x)
fig = plt.figure()
ax  = fig.add_subplot(111)
ax.plot(x, y1, c='b', label='y1')
ax.plot(x, y2, c='r', label='y2')

leg = plt.legend()
# get the lines and texts inside legend box
leg_lines = leg.get_lines()
leg_texts = leg.get_texts()
# bulk-set the properties of all lines and texts
plt.setp(leg_lines, linewidth=4)
plt.setp(leg_texts, fontsize='x-large')
plt.savefig('leg_example')
plt.show()

The above two methods produce the same output image:

If you navigate to where you have installed SQLExpress, e.g.

C:\Program Files\Microsoft SQL Server\110\Tools\Binn

You can run SQLLocalDB.exe and get a list of the all instances installed on your machine.

C:\Program Files\Microsoft SQL Server\110\Tools\Binn>SqlLocalDB.exe info
MSSQLLocalDB
ProjectsV12
v11.0

Then you can get further information on the instance.

C:\Program Files\Microsoft SQL Server\110\Tools\Binn>SqlLocalDB.exe info MSSQLLocalDB Name: MSSQLLocalDB
Version: 13.0.1601.5
Shared name:
Owner: Domain\User
Auto-create: Yes
State: Stopped
Last start time: 22/09/2016 10:19:33
Instance pipe name:

It's very simple. Use numpy slicing.

import cv2
img = cv2.imread("lenna.png")
crop_img = img[y:y+h, x:x+w]
cv2.imshow("cropped", crop_img)
cv2.waitKey(0)

Just an examples for toLowerCase(), toUpperCase() and prototype for not yet available toTitleCase() or toPropperCase()

String.prototype.toTitleCase = function() {_x000D_
  return this.split(' ').map(i => i[0].toUpperCase() + i.substring(1).toLowerCase()).join(' ');_x000D_
}_x000D_
_x000D_
String.prototype.toPropperCase = function() {_x000D_
  return this.toTitleCase();_x000D_
}_x000D_
_x000D_
var OriginalCase = 'Your Name';_x000D_
var lowercase = OriginalCase.toLowerCase();_x000D_
var upperCase = lowercase.toUpperCase();_x000D_
var titleCase = upperCase.toTitleCase();_x000D_
_x000D_
console.log('Original: ' + OriginalCase);_x000D_
console.log('toLowerCase(): ' + lowercase);_x000D_
console.log('toUpperCase(): ' + upperCase);_x000D_
console.log('toTitleCase(): ' + titleCase);

edited 2018

Splendid answer from Ben. However I'm surprised that the Affinity Propagation (AP) method has been here suggested just to find the number of cluster for the k-means method, where in general AP do a better job clustering the data. Please see the scientific paper supporting this method in Science here:

Frey, Brendan J., and Delbert Dueck. "Clustering by passing messages between data points." science 315.5814 (2007): 972-976.

So if you are not biased toward k-means I suggest to use AP directly, which will cluster the data without requiring knowing the number of clusters:

library(apcluster)
apclus = apcluster(negDistMat(r=2), data)
show(apclus)

If negative euclidean distances are not appropriate, then you can use another similarity measures provided in the same package. For example, for similarities based on Spearman correlations, this is what you need:

sim = corSimMat(data, method="spearman")
apclus = apcluster(s=sim)

Please note that those functions for similarities in the AP package are just provided for simplicity. In fact, apcluster() function in R will accept any matrix of correlations. The same before with corSimMat() can be done with this:

sim = cor(data, method="spearman")

or

sim = cor(t(data), method="spearman")

depending on what you want to cluster on your matrix (rows or cols).

$('#myform').submit(function() {
  // your code here
})

The above is NOT working in Firefox. The form will just simply submit without running your code first. Also, similar issues are mentioned elsewhere... such as this question. The workaround will be

$('#myform').submit(function(event) {

 event.preventDefault(); //this will prevent the default submit

  // your code here (But not asynchronous code such as Ajax because it does not wait for a response and move to the next line.)
  
 $(this).unbind('submit').submit(); // continue the submit unbind preventDefault
})

To get the value equivalent to your C cast, just bitwise and with the appropriate mask. e.g. if unsigned long is 32 bit:

>>> i = -6884376
>>> i & 0xffffffff
4288082920

or if it is 64 bit:

>>> i & 0xffffffffffffffff
18446744073702667240

Do be aware though that although that gives you the value you would have in C, it is still a signed value, so any subsequent calculations may give a negative result and you'll have to continue to apply the mask to simulate a 32 or 64 bit calculation.

This works because although Python looks like it stores all numbers as sign and magnitude, the bitwise operations are defined as working on two's complement values. C stores integers in twos complement but with a fixed number of bits. Python bitwise operators act on twos complement values but as though they had an infinite number of bits: for positive numbers they extend leftwards to infinity with zeros, but negative numbers extend left with ones. The & operator will change that leftward string of ones into zeros and leave you with just the bits that would have fit into the C value.

Displaying the values in hex may make this clearer (and I rewrote to string of f's as an expression to show we are interested in either 32 or 64 bits):

>>> hex(i)
'-0x690c18'
>>> hex (i & ((1 << 32) - 1))
'0xff96f3e8'
>>> hex (i & ((1 << 64) - 1)
'0xffffffffff96f3e8L'

For a 32 bit value in C, positive numbers go up to 2147483647 (0x7fffffff), and negative numbers have the top bit set going from -1 (0xffffffff) down to -2147483648 (0x80000000). For values that fit entirely in the mask, we can reverse the process in Python by using a smaller mask to remove the sign bit and then subtracting the sign bit:

>>> u = i & ((1 << 32) - 1)
>>> (u & ((1 << 31) - 1)) - (u & (1 << 31))
-6884376

Or for the 64 bit version:

>>> u = 18446744073702667240
>>> (u & ((1 << 63) - 1)) - (u & (1 << 63))
-6884376

This inverse process will leave the value unchanged if the sign bit is 0, but obviously it isn't a true inverse because if you started with a value that wouldn't fit within the mask size then those bits are gone.

Try something like this: http://jsfiddle.net/D7E3E/4/

Using a container with overflow: hidden

EDIT: @Dominic Green beat me.

I ran into this same issue trying to install the dbf package in Python 2.7. The problem is that the enum package wasn't added to Python until version 3.4.

It has been backported to versions 3.3, 3.2, 3.1, 2.7, 2.6, 2.5, and 2.4, you just need the package from here: https://pypi.python.org/pypi/enum34#downloads

I'm using macOS Sierra (v10.12.1) Xcode v8.1 Swift 3.0.1 and here's what worked for me in ViewController.swift:

//
//  ViewController.swift
//  UIWebViewExample
//
//  Created by Scott Maretick on 1/2/17.
//  Copyright © 2017 Scott Maretick. All rights reserved.
//

import UIKit
import WebKit

class ViewController: UIViewController {

    //added this code
    @IBOutlet weak var webView: UIWebView!

    override func viewDidLoad() {
        super.viewDidLoad()
        // Your webView code goes here
        let url = URL(string: "https://www.google.com")
        if UIApplication.shared.canOpenURL(url!) {
            UIApplication.shared.open(url!, options: [:], completionHandler: nil)
            //If you want handle the completion block than
            UIApplication.shared.open(url!, options: [:], completionHandler: { (success) in
                print("Open url : \(success)")
            })
        }
    }
    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }


};

To add just one more solution not yet mentioned, I had to say that using gitg's graphical search box was the simplest solution for me. It will select the first occurrence and you can find the next with Ctrl-G.

I came upon this post, and while it has already been answered, felt I should post some information that helped me with this problem specific to IE 10, and might help others arriving at this post with a similar problem.

I was baffled how animated gifs were just not displaying in IE 10 and then found this gem.

Tools→Internet Options→Advanced→MultiMedia→Play animations in webpages

hope this helps.

You can simplify the 5 through 21 part:

=IF(E9>21,"Text1",IF(E9>4,"Text2","Text3"))

Had to restart the Eclipse after completing the installation of ARM EABI v7a system image.

Mark the class as abstract and implement an OnClick method

public abstract class MainGridAdapter extends
    RecyclerView.Adapter<MainGridAdapter.ViewHolder> {
private List<MainListItem> mDataset;

// Provide a reference to the views for each data item
// Complex data items may need more than one view per item, and
// you provide access to all the views for a data item in a view holder
public class ViewHolder extends RecyclerView.ViewHolder {
    // each data item is just a string in this case
    public TextView txtHeader;
    public TextView txtFooter;

    public ViewHolder(View v) {
        super(v);
        txtHeader = (TextView) v.findViewById(R.id.firstLine);
        txtFooter = (TextView) v.findViewById(R.id.secondLine);
    }
}

public void add(int position, MainListItem item) {
    mDataset.add(position, item);
    notifyItemInserted(position);
}

public void remove(MainListItem item) {
    int position = mDataset.indexOf(item);
    mDataset.remove(position);
    notifyItemRemoved(position);
}

// Provide a suitable constructor (depends on the kind of dataset)
public MainGridAdapter(List<MainListItem> myDataset) {
    mDataset = myDataset;
}

// Create new views (invoked by the layout manager)
@Override
public MainGridAdapter.ViewHolder onCreateViewHolder(ViewGroup parent,
        int viewType) {
    // create a new view
    View v = LayoutInflater.from(parent.getContext()).inflate(
            R.layout.list_item_grid_line, parent, false);
    // set the view's size, margins, paddings and layout parameters
    ViewHolder vh = new ViewHolder(v);
    return vh;
}

// Replace the contents of a view (invoked by the layout manager)
@Override
public void onBindViewHolder(final ViewHolder holder, final int position) {
    // - get element from your dataset at this position
    // - replace the contents of the view with that element     
    OnClickListener clickListener = new OnClickListener() {
        @Override
        public void onClick(View v) {
            onItemClicked(position);
        }
    };
    holder.itemView.setOnClickListener(clickListener);
    holder.txtHeader.setOnClickListener(clickListener);
    holder.txtFooter.setOnClickListener(clickListener);
    final MainListItem item = mDataset.get(position);
    holder.txtHeader.setText(item.getTitle());
    if (TextUtils.isEmpty(item.getDescription())) {
        holder.txtFooter.setVisibility(View.GONE);
    } else {
        holder.txtFooter.setVisibility(View.VISIBLE);
        holder.txtFooter.setText(item.getDescription());
    }
}

// Return the size of your dataset (invoked by the layout manager)
@Override
public int getItemCount() {
    return mDataset.size();
}

public abstract void onItemClicked(int position);

}

Implement click handler in binding event to only have one event implementation

Implementation of this:

mAdapter = new MainGridAdapter(listItems) {         
    @Override
    public void onItemClicked(int position) {
        showToast("Item Clicked: " + position, ToastPlus.STYLE_INFO);
    }
};

Same can be done for long click

../images/logo.png will move you back one folder.

../../images/logo.png will move you back two folders.

/images/logo.png will take you back to the root folder no matter where you are/.

I used a combination of the above to achieve a working result; Change float to Left and display Block the li itself HTML:

<ol class="foo">
    <li>bar1</li>
    <li>bar2</li>
</ol>

CSS:

.foo li {
    display: block;
    float: left;
    width: 100px;
    height: 100px;
    border: 1px solid black;
    margin: 2px;
}

In the picture you can see. In the set script options, choose the last option: Types of data to script you click at the right side and you choose what you want. This is the option you should choose to export a schema and data

I know this is an old post but I had a lot of issues trying to solve this and I finally did so I wanted to share.

My issue was that I was adding an event listener within the ontouchstart and removing it in the ontouchend functions - something like this

function onTouchStart() {
  window.addEventListener("touchmove", handleTouchMove, {
    passive: false
  });
}

function onTouchEnd() {
  window.removeEventListener("touchmove", handleTouchMove, {
    passive: true
  });
}

function handleTouchMove(e) {
  e.preventDefault();
}

For some reason adding it removing it like this was causing this issue of the event randomly not being cancelable. So to solve this I kept the listener active and toggled a boolean on whether or not it should prevent the event - something like this:

let stopScrolling = false;

window.addEventListener("touchmove", handleTouchMove, {
  passive: false
});

function handleTouchMove(e) {
  if (!stopScrolling) {
    return;
  }
  e.preventDefault();
}

function onTouchStart() {
  stopScrolling = true;
}

function onTouchEnd() {
  stopScrolling = false;
}

I was actually using React so my solution involved setting state, but I've simplified it for a more generic solution. Hopefully this helps someone!

I found this question looking to change the timezone in my Django project's settings.py file to the United Kingdom.

Using the tz database in jfs' solution I found the answer:

    TIME_ZONE = 'Europe/London'

I confirm that git and msysgit can coexist on the same computer, as mentioned in "Which GIT version to use cygwin or msysGit or both?".

1. Git for Windows (msysgit) will run in its own shell (dos with git-cmd.bat or bash with Git Bash.vbs)
   Update 2016: msysgit is obsolete, and the new Git for Windows now uses msys2

2. Git on Cygwin, after installing its package, will run in its own cygwin bash shell.

3. Finally, since Q3 2016 and the "Windows 10 anniversary update", you can use Git in a bash (an actual Ubuntu(!) bash).

In there, you can do a sudo apt-get install git-core and start using git on project-sources present either on the WSL container's "native" file-system (see below), or in the hosting Windows's file-system through the /mnt/c/..., /mnt/d/... directory hierarchies.

Specifically for the Bash on Windows or WSL (Windows Subsystem for Linux):

• It is a light-weight virtualization container (technically, a "Drawbridge" pico-process,
• hosting an unmodified "headless" Linux distribution (i.e. Ubuntu minus the kernel),
• which can execute terminal-based commands (and even X-server client apps if an X-server for Windows is installed),
• with emulated access to the Windows file-system (meaning that, apart from reduced performance, encodings for files in DrvFs emulated file-system may not behave the same as files on the native VolFs file-system).

• Unfortunately, it cannot invoke back into Windows executables, or
• interact with any native drivers (i.e. so no Graphic card, no USB drives yet).

Again with getElementById, but instead .value, use .innerText

<td id="test">Chicken</td>
document.getElementById('test').innerText; //the value of this will be 'Chicken'

I should have read more on existing questions in stack overflow.

C++ Passing Variable Number of Arguments is a similar question. Mike F has the following explanation:

There's no way of calling (eg) printf without knowing how many arguments you're passing to it, unless you want to get into naughty and non-portable tricks.

The generally used solution is to always provide an alternate form of vararg functions, so printf has vprintf which takes a va_list in place of the .... The ... versions are just wrappers around the va_list versions.

This is exactly what I was looking for. I performed a test implementation like this:

void Error(const char* format, ...)
{
    char dest[1024 * 16];
    va_list argptr;
    va_start(argptr, format);
    vsprintf(dest, format, argptr);
    va_end(argptr);
    printf(dest);
}

I tried almost all the solutions provided here. But nothing worked out. And finally, I downloaded tools(tools_r25.2.3-windows.zip) from the below link and replaced the tools sub-folder in the sdk folder. It started working.

https://developer.android.com/studio/index.html#downloads

Sharing this as an information though it's an old thread.

The usual way is to use zip():

for x, y in zip(a, b):
    # x is from a, y is from b

This will stop when the shorter of the two iterables a and b is exhausted. Also worth noting: itertools.izip() (Python 2 only) and itertools.izip_longest() (itertools.zip_longest() in Python 3).

<?php
    $today = strtotime("2011-02-03 00:00:00");
    $myBirthDate = strtotime("1964-10-30 00:00:00");
    printf("Days since my birthday: ", ($today - $myBirthDate)/60/60/24);
?>

Not sure of this is helpful but this what worked for me in Rails 4

Foo.where.not(bar: nil)

This may work for you. I used it for cleaning folders during deployments for deleting old deployment files.

clean_anyfolder() {
    local temp2="$1/**"; //PATH
    temp3=( $(ls -d $temp2 -t | grep "`date | awk '{print $2" "$3}'`") )
    j=0;
    while [ $j -lt ${#temp3[@]} ]
    do
            echo "to be removed ${temp3[$j]}"
            delete_file_or_folder ${temp3[$j]} 0 //DELETE HERE
        fi
        j=`expr $j + 1`
    done
}

With the multiplication, I recommend using the modulo operator (%) to determine which numbers divide evenly into the target number like:

$factors = array();
for($i = 0; $i < $target; $i++){
    if($target % $i == 0){
        $temp = array()
        $a = $i;
        $b = $target / $i;
        $temp["a"] = $a;
        $temp["b"] = $b;
        $temp["index"] = $i;
        array_push($factors, $temp);
    }
}

This would leave you with an array of factors of the target number.

Correctness of Dijkstra's algorithm:

We have 2 sets of vertices at any step of the algorithm. Set A consists of the vertices to which we have computed the shortest paths. Set B consists of the remaining vertices.

Inductive Hypothesis: At each step we will assume that all previous iterations are correct.

Inductive Step: When we add a vertex V to the set A and set the distance to be dist[V], we must prove that this distance is optimal. If this is not optimal then there must be some other path to the vertex V that is of shorter length.

Suppose this some other path goes through some vertex X.

Now, since dist[V] <= dist[X] , therefore any other path to V will be atleast dist[V] length, unless the graph has negative edge lengths.

Thus for dijkstra's algorithm to work, the edge weights must be non negative.

You can only apply border-radius to td, not tr or table. I've gotten around this for rounded corner tables by using these styles:

table { border-collapse: separate; }
td { border: solid 1px #000; }
tr:first-child td:first-child { border-top-left-radius: 10px; }
tr:first-child td:last-child { border-top-right-radius: 10px; }
tr:last-child td:first-child { border-bottom-left-radius: 10px; }
tr:last-child td:last-child { border-bottom-right-radius: 10px; }

Be sure to provide all the vendor prefixes. Here's an example of it in action.

The reason for using dictionaries in the first place is performance. Although it is correct that you can use named vectors and lists for the task the issue is that they are becoming quite slow and memory hungry with more data.

Yet what many people don't know is that R has indeed an inbuilt dictionary data structure: environments with the option hash = TRUE

See the following example for how to make it work:

# vectorize assign, get and exists for convenience
assign_hash <- Vectorize(assign, vectorize.args = c("x", "value"))
get_hash <- Vectorize(get, vectorize.args = "x")
exists_hash <- Vectorize(exists, vectorize.args = "x")

# keys and values
key<- c("tic", "tac", "toe")
value <- c(1, 22, 333)

# initialize hash
hash = new.env(hash = TRUE, parent = emptyenv(), size = 100L)
# assign values to keys
assign_hash(key, value, hash)
## tic tac toe 
##   1  22 333
# get values for keys
get_hash(c("toe", "tic"), hash)
## toe tic 
## 333   1
# alternatively:
mget(c("toe", "tic"), hash)
## $toe
## [1] 333
## 
## $tic
## [1] 1
# show all keys
ls(hash)
## [1] "tac" "tic" "toe"
# show all keys with values
get_hash(ls(hash), hash)
## tac tic toe 
##  22   1 333
# remove key-value pairs
rm(list = c("toe", "tic"), envir = hash)
get_hash(ls(hash), hash)
## tac 
##  22
# check if keys are in hash
exists_hash(c("tac", "nothere"), hash)
##     tac nothere 
##    TRUE   FALSE
# for single keys this is also possible:
# show value for single key
hash[["tac"]]
## [1] 22
# create new key-value pair
hash[["test"]] <- 1234
get_hash(ls(hash), hash)
##  tac test 
##   22 1234
# update single value
hash[["test"]] <- 54321
get_hash(ls(hash), hash)
##   tac  test 
##    22 54321

Edit: On the basis of this answer I wrote a blog post with some more context: http://blog.ephorie.de/hash-me-if-you-can

I use SDL_GetTicks from the SDL library.

TL:DR; return promises from you actions only when necessary, but DRY chaining the same actions.

For a long time I also though that returning actions contradicts the Vuex cycle of uni-directional data flow.

But, there are EDGE CASES where returning a promise from your actions might be "necessary".

Imagine a situation where an action can be triggered from 2 different components, and each handles the failure case differently. In that case, one would need to pass the caller component as a parameter to set different flags in the store.

Dumb example

Page where the user can edit the username in navbar and in /profile page (which contains the navbar). Both trigger an action "change username", which is asynchronous. If the promise fails, the page should only display an error in the component the user was trying to change the username from.

Of course it is a dumb example, but I don't see a way to solve this issue without duplicating code and making the same call in 2 different actions.

Try this I It's working.

<form>_x000D_
<input type="text" name="mobile" pattern="[1-9]{1}[0-9]{9}" title="Enter 10 digit mobile number" placeholder="Mobile number" required>_x000D_
<button>_x000D_
Save_x000D_
</button>_x000D_
</form>_x000D_
 

https://jsfiddle.net/guljarpd/12b7v330/

I tried solving this problem for hours after I haven't used Android Studio some time and wasn't aware of the updates.

It is important that google() is the first item that stands in repositories like this:

allprojects {
    repositories {
        google()
        jcenter()
        mavenCentral()
    }
}

Somehow google() was the second item after jcenter(), so everything was messed up and didn't work. Maybe this helps someone.

You can have an iframe inside the modal markup and give the src attribute of it as the link to your pdf. On click of the link you can show this modal markup.

I've heard good things about Eigen and NT2, but haven't personally used either. There's also Boost.UBLAS, which I believe is getting a bit long in the tooth. The developers of NT2 are building the next version with the intention of getting it into Boost, so that might count for somthing.

My lin. alg. needs don't exteed beyond the 4x4 matrix case, so I can't comment on advanced functionality; I'm just pointing out some options.

Start an Android Emulator (make sure that all supported APIs are included when you created the emulator, we needed to have the Google APIs for instance).

Then simply email yourself a link to the .apk file, and download it directly in the emulator, and click the downloaded file to install it.

In the first two cases, you simply forgot to actually call the member function (!, it's not a value) std::vector<int>::size like this:

#include <vector>

int main () {
    std::vector<int> v;
    auto size = v.size();
}

Your third call

int size = v.size();

triggers a warning, as not every return value of that function (usually a 64 bit unsigned int) can be represented as a 32 bit signed int.

int size = static_cast<int>(v.size());

would always compile cleanly and also explicitly states that your conversion from std::vector::size_type to int was intended.

Note that if the size of the vector is greater than the biggest number an int can represent, size will contain an implementation defined (de facto garbage) value.

String in C# is immutable. If you concatenate it with any string, you are actually making a new string, that is new string object ! But StringBuilder creates mutable string.

def lensort(list_1):
    list_2=[];list_3=[]
for i in list_1:
    list_2.append([i,len(i)])
list_2.sort(key = lambda x : x[1])
for i in list_2:
    list_3.append(i[0])
return list_3

This works for me!

Actually in Eclipse Indigo thru Oxygen, you have to go to the Types template Window -> Preferences -> Java -> Code Style -> Code templates -> (in right-hand pane) Comments -> double-click Types and make sure it has the following, which it should have by default:

/**
 * @author ${user}
 *
 * ${tags}
 */

and as far as I can tell, there is nothing in Eclipse to add the javadoc automatically to existing files in one batch. You could easily do it from the command line with sed & awk but that's another question.

If you are prepared to open each file individually, then selected the class / interface declaration line, e.g. public class AdamsClass { and then hit the key combo Shift + Alt + J and that will insert a new javadoc comment above, along with the author tag for your user. To experiment with other settings, go to Windows->Preferences->Java->Editor->Templates.

You should not create a new Random instance in a loop. Try something like:

var rnd = new Random();
for(int i = 0; i < 100; ++i) 
   Console.WriteLine(rnd.Next(1, 100));

The sequence of random numbers generated by a single Random instance is supposed to be uniformly distributed. By creating a new Random instance for every random number in quick successions, you are likely to seed them with identical values and have them generate identical random numbers. Of course, in this case, the generated sequence will be far from uniform distribution.

For the sake of completeness, if you really need to reseed a Random, you'll create a new instance of Random with the new seed:

rnd = new Random(newSeed);

After importing stored procedure, you can create object of stored procedure pass the parameter like function

using (var entity = new FunctionsContext())
{
   var DBdata = entity.GetFunctionByID(5).ToList<Functions>();
}

or you can also use SqlQuery

using (var entity = new FunctionsContext())
{
    var Parameter = new SqlParameter {
                     ParameterName = "FunctionId",
                     Value = 5
            };

    var DBdata = entity.Database.SqlQuery<Course>("exec GetFunctionByID @FunctionId ", Parameter).ToList<Functions>();
}

HttpClient 4.4 suffered from a bug in this area relating to validating possibly stale connections before returning to the requestor. It didn't validate whether a connection was stale, and this then results in an immediate NoHttpResponseException.

This issue was resolved in HttpClient 4.4.1. See this JIRA and the release notes

primes = {x for x in range(2, 101) if all(x%y for y in range(2, min(x, 11)))}

I simplified the test a bit - if all(x%y instead of if not any(not x%y

I also limited y's range; there is no point in testing for divisors > sqrt(x). So max(x) == 100 implies max(y) == 10. For x <= 10, y must also be < x.

pairs = {(x, x+2) for x in primes if x+2 in primes}

Instead of generating pairs of primes and testing them, get one and see if the corresponding higher prime exists.

An enum is kind of like a typedef for the int type (kind of).

So the type you've defined there has 12 possible values, however a single variable only ever has one of those values.

Think of it this way, when you define an enum you're basically defining another way to assign an int value.

In the example you've provided, january is another way of saying 0, feb is another way of saying 1, etc until december is another way of saying 11.

cleanText = strInputCode.replace(/<\/?[^>]+(>|$)/g, "");

Distilled from this website (web.achive).

This regex looks for <, an optional slash /, one or more characters that are not >, then either > or $ (the end of the line)

Examples:

'<div>Hello</div>' ==> 'Hello'
 ^^^^^     ^^^^^^
'Unterminated Tag <b' ==> 'Unterminated Tag '
                  ^^

But it is not bulletproof:

'If you are < 13 you cannot register' ==> 'If you are '
            ^^^^^^^^^^^^^^^^^^^^^^^^
'<div data="score > 42">Hello</div>' ==> ' 42">Hello'
 ^^^^^^^^^^^^^^^^^^          ^^^^^^

If someone is trying to break your application, this regex will not protect you. It should only be used if you already know the format of your input. As other knowledgable and mostly sane people have pointed out, to safely strip tags, you must use a parser.

If you do not have acccess to a convenient parser like the DOM, and you cannot trust your input to be in the right format, you may be better off using a package like sanitize-html, and also other sanitizers are available.

If the graph is not a multi graph then it is clearly n * (n - 1), as each node can at most have edges to every other node. If this is a multigraph, then there is no max limit.

Build solution: Compiles code files (DLL and EXE) which are changed.

Rebuild: Deletes all compiled files and compiles them again irrespective if the code has changed or not.

Clean solution: Deletes all compiled files (DLL and EXE file).

You can see this YouTube video (Visual Studio Build vs. Rebuild vs. Clean (C# interview questions with answers)) where I have demonstrated the differences and below are visual representations which will help you to analyze the same in more detail.

The difference between Rebuild vs. (Clean + Build), because there seems to be some confusion around this as well:

The difference is the way the build and clean sequence happens for every project. Let’s say your solution has two projects, “proj1” and “proj2”. If you do a rebuild it will take “proj1”, clean (delete) the compiled files for “proj1” and build it. After that it will take the second project “proj2”, clean compiled files for “proj2” and compile “proj2”.

But if you do a “clean” and build”, it will first delete all compiled files for “proj1” and “proj2” and then it will build “proj1” first followed by “proj2”.

To define an array of strings it is more comfortable to use $var = @('User1 ', 'User2 ').

$servername = hostname
$smtpserver = 'localhost'
$emailTo = @('username1 <[email protected]>', 'username2<[email protected]>')
$emailFrom = 'SomeServer <[email protected]>'
Send-MailMessage -To $emailTo -Subject 'Low available memory' -Body 'Warning' -SmtpServer $smtpserver -From $emailFrom

If you landed here looking for solution that works with React Router and AWS Amplify Console - you already know that you can't use CloudFront redirection rules directly since Amplify Console does not expose CloudFront Distribution for the app.

Solution, however, is very simple - you just need to add a redirect/rewrite rule in Amplify Console like this:

See the following links for more info (and copy-friendly rule from the screenshot):

• https://docs.aws.amazon.com/amplify/latest/userguide/redirects.html#redirects-for-single-page-web-apps-spa
• https://github.com/aws-amplify/amplify-console/issues/83

hope this help someone else : use innerHTML for using label object.

  document.getElementById('lableObject').innerHTML = res.FullName;

There is often the tip to use 'echo.'

But that is slow, and it could fail with an error message, as cmd.exe will search first for a file named 'echo' (without extension) and only when the file doesn't exists it outputs an empty line.

You could use echo(. This is approximately 20 times faster, and it works always. The only drawback could be that it looks odd.

More about the different ECHO:/\ variants is at DOS tips: ECHO. FAILS to give text or blank line.

For bootstrap datepicker you can use:

$("#inputWithDatePicer").data('datepicker').getFormattedDate('yyyy-mm-dd');

Yes it is safe to convert an ArrayList to an Array. Whether it is a good idea depends on your intended use. Do you need the operations that ArrayList provides? If so, keep it an ArrayList. Else convert away!

ArrayList<Integer> foo = new ArrayList<Integer>();
foo.add(1);
foo.add(1);
foo.add(2);
foo.add(3);
foo.add(5);
Integer[] bar = foo.toArray(new Integer[foo.size()]);
System.out.println("bar.length = " + bar.length);

outputs

bar.length = 5

You can use Task.WaitAny to wait the first of multiple tasks.

You could create two additional tasks (that complete after the specified timeouts) and then use WaitAny to wait for whichever completes first. If the task that completed first is your "work" task, then you're done. If the task that completed first is a timeout task, then you can react to the timeout (e.g. request cancellation).

try this:

SELECT (num % 1)

If you want to have both horizontal and vertical dividers:

1. Define horizontal & vertical divider drawables:

   horizontal_divider.xml

   <?xml version="1.0" encoding="utf-8"?>
   <shape xmlns:android="http://schemas.android.com/apk/res/android" >
     <size android:height="1dip" />
     <solid android:color="#22000000" />
   </shape>
   

   vertical_divider.xml

   <?xml version="1.0" encoding="utf-8"?>
   <shape xmlns:android="http://schemas.android.com/apk/res/android" >
       <size android:width="1dip" />
       <solid android:color="#22000000" />
   </shape>
   

2. Add this code segment below:

   DividerItemDecoration verticalDecoration = new DividerItemDecoration(recyclerview.getContext(),
           DividerItemDecoration.HORIZONTAL);
   Drawable verticalDivider = ContextCompat.getDrawable(getActivity(), R.drawable.vertical_divider);
   verticalDecoration.setDrawable(verticalDivider);
   recyclerview.addItemDecoration(verticalDecoration);
   
   DividerItemDecoration horizontalDecoration = new DividerItemDecoration(recyclerview.getContext(),
           DividerItemDecoration.VERTICAL);
   Drawable horizontalDivider = ContextCompat.getDrawable(getActivity(), R.drawable.horizontal_divider);
   horizontalDecoration.setDrawable(horizontalDivider);
   recyclerview.addItemDecoration(horizontalDecoration);
   

The compiler must provide a consistent type system, and provide a set of standard conversions. Neither the integer value 0 nor the NULL pointer need to be represented by all-zero bits, but the compiler must take care of converting the "0" token in the input file to the correct representation for integer zero, and the cast to pointer type must convert from integer to pointer representation.

The implication of this is that

void *p;
memset(&p, 0, sizeof p);
if(p) { ... }

is not guaranteed to behave the same on all target systems, as you are making an assumption about the bit pattern here.

As an example, I have an embedded platform that has no memory protection, and keeps the interrupt vectors at address 0, so by convention, integers and pointers are XORed with 0x2000000 when converted, which leaves (void *)0 pointing at an address that generates a bus error when dereferenced, however testing the pointer with an if statement will return it to integer representation first, which is then all-zeros.

must please see guys that the error is in the cv2.imread() .Give the right path of the image. and firstly, see if your system loads the image or not. this can be checked first by simple load of image using cv2.imread(). after that ,see this code for the face detection

import numpy as np
import cv2

cascPath = "/Users/mayurgupta/opt/anaconda3/lib/python3.7/site-   packages/cv2/data/haarcascade_frontalface_default.xml"

eyePath = "/Users/mayurgupta/opt/anaconda3/lib/python3.7/site-packages/cv2/data/haarcascade_eye.xml"

smilePath = "/Users/mayurgupta/opt/anaconda3/lib/python3.7/site-packages/cv2/data/haarcascade_smile.xml"

face_cascade = cv2.CascadeClassifier(cascPath)
eye_cascade = cv2.CascadeClassifier(eyePath)
smile_cascade = cv2.CascadeClassifier(smilePath)

img = cv2.imread('WhatsApp Image 2020-04-04 at 8.43.18 PM.jpeg')
gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)

faces = face_cascade.detectMultiScale(gray, 1.3, 5)
for (x,y,w,h) in faces:
    img = cv2.rectangle(img,(x,y),(x+w,y+h),(255,0,0),2)
    roi_gray = gray[y:y+h, x:x+w]
    roi_color = img[y:y+h, x:x+w]
    eyes = eye_cascade.detectMultiScale(roi_gray)
    for (ex,ey,ew,eh) in eyes:
        cv2.rectangle(roi_color,(ex,ey),(ex+ew,ey+eh),(0,255,0),2)

cv2.imshow('img',img)
cv2.waitKey(0)
cv2.destroyAllWindows()

Here, cascPath ,eyePath ,smilePath should have the right actual path that's picked up from lib/python3.7/site-packages/cv2/data here this path should be to picked up the haarcascade files

Here's a complete working example based on your testing. Compare it to what you have currently to figure out where you are going wrong.

<html> 
  <head> 
    <title>Untitled Document</title> 
    <script type="text/javascript" src="http://code.jquery.com/jquery-latest.js"></script>
    <script type="text/javascript"> 
      $(document).ready( function() {
        $('#deletesuccess').delay(1000).fadeOut();
      });
    </script>
  </head> 
  <body> 
    <div id=deletesuccess > hiiiiiiiiiii </div> 
  </body> 
</html>

Now a days, most of the sites add meta tags to their sites providing information about their site or any particular article page. Such as news or blog sites.

I have created a Meta API which gives you required meta data ac like OpenGraph, Schema.Org, etc.

Check it out - https://api.sakiv.com/docs

Use the Base Context of the Activity in which your fragment resides to start an Intent.

Intent j = new Intent(fBaseCtx, NewactivityName.class);         
startActivity(j);

where fBaseCtx is BaseContext of your current activity. You can get it as fBaseCtx = getBaseContext();

or_() function can be useful in case of unknown number of OR query components.

For example, let's assume that we are creating a REST service with few optional filters, that should return record if any of filters return true. On the other side, if parameter was not defined in a request, our query shouldn't change. Without or_() function we must do something like this:

query = Book.query
if filter.title and filter.author:
    query = query.filter((Book.title.ilike(filter.title))|(Book.author.ilike(filter.author)))
else if filter.title:
    query = query.filter(Book.title.ilike(filter.title))
else if filter.author:
    query = query.filter(Book.author.ilike(filter.author))

With or_() function it can be rewritten to:

query = Book.query
not_null_filters = []
if filter.title:
    not_null_filters.append(Book.title.ilike(filter.title))
if filter.author:
    not_null_filters.append(Book.author.ilike(filter.author))

if len(not_null_filters) > 0:
    query = query.filter(or_(*not_null_filters))