A **connection timeout** occurs only upon starting the TCP connection. This usually happens if the remote machine does not answer. This means that the server has been shut down, you used the wrong IP/DNS name, wrong port or the network connection to the server is down.

A **socket timeout** is dedicated to monitor the continuous incoming data flow. If the data flow is interrupted for the specified timeout the connection is regarded as stalled/broken. Of course this only works with connections where data is received all the time. 

By setting socket timeout to 1 this would require that every millisecond new data is received (assuming that you read the data block wise and the block is large enough)! 

If only the incoming stream stalls for more than a millisecond you are running into a timeout.

A *connection timeout* is the maximum amount of time that the program is willing to wait to setup a connection to another process. You aren&#39;t getting or posting any application data at this point, just establishing the connection, itself.

A *socket timeout* is the timeout when waiting for individual packets. It&#39;s a common misconception that a socket timeout is the timeout to receive the full response. So if you have a socket timeout of 1 second, and a response comprised of 3 IP packets, where each response packet takes 0.9 seconds to arrive, for a total response time of 2.7 seconds, then there will be no timeout.

In Safari with no add-ons (and actually most other browsers), `console.log` will show the object at the last state of execution, not at the state when `console.log` was called.

I have to clone the object just to output it via `console.log` to get the state of the object at that line.

__Example:__

    var test = {a: true}
    console.log(test); // {a: false}
    test.a = false; 
    console.log(test); // {a: false}

How can I make console.log show the current state of an object?

I&#39;m trying to use the [Requests](http://docs.python-requests.org/en/latest/user/quickstart/#cookies) library to send cookies with a post request, but I&#39;m not sure how to actually set up the cookies based on its documentation. The script is for use on Wikipedia, and the cookie(s) that need to be sent are of this form:

    enwiki_session=17ab96bd8ffbe8ca58a78657a918558e; path=/; domain=.wikipedia.com; HttpOnly

However, the `requests` documentation quickstart gives this as the only example:

    cookies = dict(cookies_are=&#39;working&#39;)

How can I encode a cookie like the above using this library? Do I need to make it with python&#39;s standard cookie library, then send it along with the POST request?

How to send cookies in a post request with the Python Requests library?

I&#39;m having a problem with a library that I am using. It might be the library or it might be me using it wrong!

Basically, when I do this (Timeout in milliseconds)

    _ignitedHttp.setConnectionTimeout(1);  // v short
    _ignitedHttp.setSocketTimeout(60000);  // 60 seconds

No timeout exception is generated and it works ok, however, when I do the following,

    _ignitedHttp.setConnectionTimeout(60000);  // 60 seconds
    _ignitedHttp.setSocketTimeout(1);          // v short

I get a Socket Exception.

So, my question is why can I not simulate a Connection Exception? Am I misunderstanding the difference between a socket and a connection time-out? The library is [here][1] (not officially released yet).


  [1]: https://github.com/kaeppler/ignition-support/tree/master/src

ConnectionTimeout versus SocketTimeout

I'm having a problem with a library that I am using. It might be the library or it might be me using it wrong!
Basically, when I do this (Timeout in milliseconds)
<pre><code class="hljs language-scss">_ignitedHttp.setConnectionTimeout(1); // v short
_ignitedHttp.setSocketTimeout(60000); // 60 seconds
</code></pre>
No timeout exception is generated and it works ok, however, when I do the following,
<pre><code class="hljs language-scss">_ignitedHttp.setConnectionTimeout(60000); // 60 seconds
_ignitedHttp.setSocketTimeout(1); // v short
</code></pre>
I get a Socket Exception.
So, my question is why can I not simulate a Connection Exception? Am I misunderstanding the difference between a socket and a connection time-out? The library is <a href="https://github.com/kaeppler/ignition-support/tree/master/src" target="_blank" rel="noopener noreferrer">here</a> (not officially released yet).

Every single view in my Spring 3 app has a set of attributes they can rely on.  So the first line of every controller is something like:

    ControllerHelper.addDefaultModel(model, personManager, request);

In there I&#39;ll add

 - user object and full name retrieved from the database if person is logged in
 - set of variables which are typically set once (e.g. `imagesHost`)
 - set of languages a visitor can switch to
 - current language
 - some statistics (e.g. total # of people in our system)

This all allows each view to display the logged in user&#39;s name, easily reference an image location, a list of languages and some overall stats about the site.

So the question is, is the controller model object the best place to store all the data or is there a more convenient place which makes it just as easy for views to access this info?

And secondly, I&#39;d REALLY love not to have to have the `ControllerHelper` line above as the first line in every controller.  It&#39;s actually not always the first line, sometimes I first check if I need to redirect in that controller, because I don&#39;t want to waste resources filling the model for no reason.  Maybe a filter or annotation or some Spring callback mechanism could make sure the `ControllerHelper` code is called **after** the controller is finished but right **before** the view is rendered, skipping this if a redirect was returned?

Add attributes to the model of all controllers in Spring 3

Consider this code:

&lt;!-- language: java --&gt;

    public class DummyClass {
        public List&lt;? extends Number&gt; dummyMethod() {
            return new ArrayList&lt;Integer&gt;();
        }
    }
    
&lt;!-- language: java --&gt;

    public class DummyClassTest {
        public void testMockitoWithGenerics() {
            DummyClass dummyClass = Mockito.mock(DummyClass.class);
            List&lt;? extends Number&gt; someList = new ArrayList&lt;Integer&gt;();
            Mockito.when(dummyClass.dummyMethod()).thenReturn(someList); //Compiler complains about this
        }
    }

The compiler complains about the line that&#39;s trying to stub the behavior for `dummyMethod()`. Any pointers on how one goes about stubbing methods that return a type with bounded wild-cards?
    

Mockito: Stubbing Methods That Return Type With Bounded Wild-Cards

How do I get the second dimension of an array if I don&#39;t know it? `array.length` gives only the first dimension. 

For example, in

    public class B {
    	public static void main(String [] main){
    		int [] [] nir = new int [2] [3];
    		System.out.println(nir.length);
    	}
    }

how would I get the value of the second dimension of `nir`, which is 3. 

Thanks 

Getting the length of two-dimensional array

Are there any extensions for the Java programming language that make it possible to create nested functions?

There are many situations where I need to create methods that are only used once in the context of another method or for-loop. I&#39;ve been unable to accomplish this in Java so far, even though it can be done easily in JavaScript.

For example, this can&#39;t be done in standard Java:

    for(int i = 1; i &lt; 100; i++){
        times(2); // Multiply i by 2 and print i
        times(i); // Square i and then print the result

        public void times(int num){

            i *= num;
            System.out.println(i);
        }
    }


Nested functions in Java

Can&#39;t find a satisfactory answer anywhere.


Why can&#39;t a top level class be static in Java?

I&#39;m having some trouble working with dates on my Android application that uses SQLite.
I have a couple questions:

1. What type should I use to store dates in SQLite (text, integer, ...)?
2. Given the best way to store dates how do I store It properly using ContentValues?
3. What&#39;s the best way to retrieve the date from the SQLite database?
4. How to make a sql select on SQLite, ordering the results by date?

Best way to work with dates in Android SQLite

I am playing a sound file using this code inside a broadcast receiver activity:

    notification.sound = Uri.parse(&quot;android.resource://emad.app/raw/seven_chimes&quot;);

I would like to detect when this file has finished playing.

I tried a loop like this but I think this is only good for the media player because it always = false even though I made sure the sound file was still playing:

    /*
     * Stay here until the chime sound is finished.
     */
       while (manager.isMusicActive()){
       }
	
Can you show me what I should use instead of `manager.isMusicActive()`?

How do you detect when a sound file has finished?

I am using `ViewPager` to allow user to swipe between its views. Is there a way how to force this `ViewPager` to reload/re-instantiate its views in case that they are no longer valid or needs to be refreshed? I tried to call `notifyDataSetChanged()` on its adapter but this does not invoke `instantiateItem()` method again.

EDIT
----
Here is the class that extends from ViewPager and its adapter definision. Bellow is the `refresh()` method that I call when I want to force to refresh items. 

    public class DayFlipper extends ViewPager {

	public class FlipperAdapter extends PagerAdapter {

		@Override
		public int getCount() {
			return DayFlipper.DAY_HISTORY;
		}

		@Override
		public void startUpdate(View container) {
		}

		@Override
		public Object instantiateItem(View container, int position) {
			Log.d(TAG, &quot;instantiateItem(): &quot; + position);

			Date d = DateHelper.getBot();
			for (int i = 0; i &lt; position; i++) {
				d = DateHelper.getTomorrow(d);
			}

			d = DateHelper.normalize(d);

			CubbiesView cv = new CubbiesView(mContext);
			cv.setLifeDate(d);
			((ViewPager) container).addView(cv, 0);
			// add map
			cv.setCubbieMap(mMap);
			cv.initEntries(d);
			return cv;
		}

		@Override
		public void destroyItem(View container, int position, Object object) {
			((ViewPager) container).removeView((CubbiesView) object);
		}

		@Override
		public void finishUpdate(View container) {

		}

		@Override
		public boolean isViewFromObject(View view, Object object) {
			return view == ((CubbiesView) object);
		}

		@Override
		public Parcelable saveState() {
			return null;
		}

		@Override
		public void restoreState(Parcelable state, ClassLoader loader) {

		}

	}
        
        ...
        
        public void refresh() {
	    getAdapter().notifyDataSetChanged();
	}
    }

How to force ViewPager to re-instantiate its items

i am creating a notification inside a BroadcastReceiver via this code:

    String ns = Context.NOTIFICATION_SERVICE;
			NotificationManager mNotificationManager = (NotificationManager) context.getSystemService(ns);
            int icon = R.drawable.ic_stat_notification;
			CharSequence tickerText = &quot;New Notification&quot;;
			long when = System.currentTimeMillis();

			Notification notification = new Notification(icon, tickerText, when);
			notification.defaults |= Notification.DEFAULT_VIBRATE;
			long[] vibrate = {0,100,200,200,200,200};
			notification.vibrate = vibrate;
            notification.flags |= Notification.FLAG_AUTO_CANCEL;
			
			CharSequence contentTitle = &quot;Title&quot;;
			CharSequence contentText = &quot;Text&quot;;
			Intent notificationIntent = new Intent(context, NotificationActivity.class);
			notificationIntent.putExtra(Global.INTENT_EXTRA_FOO_ID, foo_id);
    PendingIntent contentIntent = PendingIntent.getActivity(context, 0, notificationIntent, 0);

			notification.setLatestEventInfo(context, contentTitle, contentText, contentIntent);

			int mynotification_id = 1;

			mNotificationManager.notify(mynotification_id, notification);

When I click on the notification, it opens the NotificationActivity and inside the Activity i can retrieve the foo_id from the Intent-Bundle (e.g. 1)

However if another notification is triggered and i click on it again, the activity still receives the &quot;old&quot; value (1) from the Intent-Bundle. I&#39;ve tried to clear the bundle with clear(), but am receiving the same effect. I think sth is wrong with my code..

Notification passes old Intent Extras

I am trying to, somewhat clone the design of an activity [from a set of slides on Android UI design][1]. However I am having a problem with a very simple task.

I have created the layout as shown in the image, and the header is a `TextView` in a `RelativeLayout`. Now I wish to change the background colour of the `RelativeLayout`, however I cannot seem to figure out how.

I know I can set the `android:background` property in the `RelativeLayout` tag in the XML file, but what do I set it to? I want to define a new colour that I can use in multiple places. Is it a `drawable` or a `string`?

Additionally I would expect there to be a very simple way to this from within the Eclipse Android UI designer that I must be missing?


I am a bit frustrated currently, as this should be an activity that is performed with a few clicks at maximum. So any help is very appreciated. :)



![Android activity design][2]


  [1]: https://docs.google.com/present/view?id=0AfYilHnGmJNGZGZwNnZ4dm5fNDdkY3o2M3Bqag&amp;hl=en_GB
  [2]: http://i.stack.imgur.com/BeIBr.png

Setting background colour of Android layout element

What exactly is a TCP connection?
I understand there isn&#39;t a physical connection from the client to server. Is this connection just the client&#39;s socket being linked with the new socket created by the server after the three-way-handshake? 
Thereafter once the &quot;connection&quot; is set up, the sockets on either ends of the connection then know where to send their packets.

How does this differ from the way UDP functions other than the initial handshake with TCP?
Is it that each server socket only has one client that sends packets to that particular socket?

What are some possible advantages of having a dedicated connection between hosts? My understanding of TCP and UDP is still very basic, so broad generalizations should suffice.

TCP vs UDP - What is a TCP connection?

How to write a echo server bash script using tools like nc, echo, xargs, etc capable of simultaneously processing requests from multiple clients each with durable connection?

The best that I&#39;ve came up so far is

    nc -l -p 2000 -c &#39;xargs -n1 echo&#39;

but it only allows a single connection.

How to make an Echo server with Bash?

    ERROR GServerHandler  - java.io.IOException: Connection reset by peer
    java.io.IOException: Connection reset by peer
            at sun.nio.ch.FileDispatcher.read0(Native Method)
            at sun.nio.ch.SocketDispatcher.read(Unknown Source)
            at sun.nio.ch.IOUtil.readIntoNativeBuffer(Unknown Source)
            at sun.nio.ch.IOUtil.read(Unknown Source)
            at sun.nio.ch.SocketChannelImpl.read(Unknown Source)
            at org.jboss.netty.channel.socket.nio.NioWorker.read(NioWorker.java:323)
            at org.jboss.netty.channel.socket.nio.NioWorker.processSelectedKeys(NioWorker.java:282)
            at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:202)
            at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
            at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
            at java.lang.Thread.run(Unknown Source)

This log is from a game server implemented using netty. What can cause this exception ? 

When is &quot;java.io.IOException:Connection reset by peer&quot; thrown?

I&#39;m trying to understand the difference between a TCP segment with the flag `PSH` and with the flag `URG`.
I read the RFC but still couldn&#39;t get it, does one of them buffer the data before it sends it to the process and the other doesn&#39;t ?

Difference between push and urgent flags in TCP

How is HTTP Keep Alive implemented? Does it internally use TCP Keep Alive? If not, how does the server detect if the client is dead or alive? 

Content Type	Original Author	Original Content on Stackoverflow
Question	Robert	View Question on Stackoverflow
Solution 1 - Java	Robert	View Answer on Stackoverflow
Solution 2 - Java	entpnerd	View Answer on Stackoverflow

ConnectionTimeout versus SocketTimeout

Java Problem Overview

Java Solutions

Solution 1 - Java

Solution 2 - Java

How to send cookies in a post request with the Python Requests library?

How can I make console.log show the current state of an object?

Attributions