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Java Synchronized Block for .class

...ass instance (the object representing the class metadata at runtime) one thread can be in this block. With synchronized(this) the block is guarded by the instance. For every instance only one thread may enter the block. synchronized(X.class) is used to make sure that there is exactly one Thread i...
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Free space in a CMD shell

... do you know why you've been minused? Because you don't read question carefully. Read: «without having to install some thirdparty applications». Though I personally like unxutils, it's not answer here. – LogicDaemon Oct 6 '14 at 14:52 ...
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How do I lock the orientation to portrait mode in a iPhone Web Application?

... Thanks but, I'm doing that part already, what I really want is to prevent Mobile Safari to not switch orientation on me when the user tilts the phone. – Kevin Jul 30 '09 at 14:44 ...
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Close and Dispose - which to call?

Having read the threads Is SqlCommand.Dispose enough? and Closing and Disposing a WCF Service I am wondering for classes such as SqlConnection or one of the several classes inheriting from the Stream class does it matter if I close Dispose rather than Close? ...
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How to save CSS changes of Styles panel of Chrome Developer Tools?

...your changes to. At the top of your viewport, click Allow to give DevTools read and write access to the directory. Make your changes. In the GIF below, you can see that the background:rosybrown change persists across page loads. How overrides work When you make a change in DevTools, DevTools sa...
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Is there a “not in” operator in JavaScript for checking object properties?

... As already said by Jordão, just negate it: if (!(id in tutorTimes)) { ... } Note: The above test if tutorTimes has a property with the name specified in id, anywhere in the prototype chain. For example "valueOf" in tutorTimes ...
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What is an idempotent operation?

... then uses the HTTP verbs of POST, PUT, GET, and DELETE to create, update, read, and delete those resources. Idempotence plays an important role in REST. If you GET a representation of a REST resource (eg, GET a jpeg image from Flickr), and the operation fails, you can just repeat the GET again an...
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Cannot set some HTTP headers when using System.Net.WebRequest

...r go right to the last section of the answer. If you want to know better, read it all, and i hope you'll enjoy... I countered this problem too today, and what i discovered today is that: the above answers are true, as: 1.1 it's telling you that the header you are trying to add already exist a...
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When to use enumerateObjectsUsingBlock vs. for

... @VanDuTran Blocks are only executed on a separate thread if you tell them to be executed on a separate thread. Unless you use the concurrency option of enumeration, then it'll be executed on the same thread as the call was made – bbum J...
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Intersection of two lists in Bash

... are much more simple AND correct: ''for file in *.txt''. Read mywiki.wooledge.org/ParsingLs – Rany Albeg Wein Jan 25 '16 at 3:49 2 ...