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Deleting an object in java?

...r leaving the block where it was declared. After that, it will be automatically deleted by the garbage collector (not immediately, but eventually). Example 1: Object a = new Object(); a = null; // after this, if there is no reference to the object, // it will be deleted by the garbage co...
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Thread pooling in C++11

... code, that would violate my job integrity. Edit: to terminate the pool, call the shutdown() method: XXXX::shutdown(){ { unique_lock<mutex> lock(threadpool_mutex); terminate_pool = true;} // use this flag in condition.wait condition.notify_all(); // wake up all threads. // ...
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How can I iterate over an enum?

... Two = 9, Three = 4, Last }; This illustrates that an enum is not really meant to iterate through. The typical way to deal with an enum is to use it in a switch statement. switch ( foo ) { case One: // .. break; case Two: // intentional fall-through case Three: ...
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How is set() implemented?

...ts in python have O(1) membership-checking. How are they implemented internally to allow this? What sort of data structure does it use? What other implications does that implementation have? ...
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How can I get pg_dump to authenticate properly

...ing host variable PGPASSWORD and .pgpass and neither of these two will allow me to authenticate to the database. I have chmod 'd .pgpass to appropriate permissions and also tried: ...
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How to use Fiddler to monitor WCF service

...k Tools | Fiddler Options => Connections => adjust the port as 8888.(allow remote if you need that) Ok, then from file menu, capture the traffic. That's all, but don't forget to remove the web.config lines after closing the fiddler, because if you don't it will make an error. Reference : ht...
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Given an array of numbers, return array of products of all other numbers (no division)

... Here is a small recursive function (in C++) to do the modofication in place. It requires O(n) extra space (on stack) though. Assuming the array is in a and N holds the array length, we have int multiply(int *a, int fwdProduct, int indx)...
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What is a Context Free Grammar?

...y and then the Wikipedia entry on formal grammar, I am left utterly and totally befuddled. Would someone be so kind as to explain what these things are? ...
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AngularJS - wait for multiple resource queries to complete

... You'll want to use promises and $q.all(). Basically, you can use it to wrap all of your $resource or $http calls because they return promises. function doQuery(type) { var d = $q.defer(); var result = Account.query({ type: type }, function() { ...
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Git : List all unmerged changes in git

...ontent-policy\"\u003e(content policy)\u003c/a\u003e", allowUrls: true }, onDemand: true, discardSelector: ".discard-answer" ,immediatelyShowMarkdownHelp:true,enableSnippets:true }); ...