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How do emulators work and how are they written? [closed]

How do emulators work? When I see NES/SNES or C64 emulators, it astounds me. 16 Answers ...
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How to prevent open last projects when intellij idea start

... edited Jan 23 '16 at 19:54 James Moore 7,22655 gold badges5757 silver badges8181 bronze badges answered Mar 19 '11 at 12:26 ...
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How to implement infinity in Java?

Does Java have anything to represent infinity for every numerical data type? How is it implemented such that I can do mathematical operations with it? ...
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Best way to concatenate List of String objects? [duplicate]

... Your approach is dependent on Java's ArrayList#toString() implementation. While the implementation is documented in the Java API and very unlikely to change, there's a chance it could. It's far more reliable to implement this yourself (loops, StringBuilders, recursion whatever you like ...
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How can I grep for a string that begins with a dash/hyphen?

...yphen, like -X , in a file, but it's confusing this as a command line argument. 10 Answers ...
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Writing string to a file on a new line every time

I want to append a newline to my string every time I call file.write() . What's the easiest way to do this in Python? 10 A...
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How do you launch the JavaScript debugger in Google Chrome?

When using Google Chrome, I want to debug some JavaScript code. How can I do that? 15 Answers ...
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Android screen size HDPI, LDPI, MDPI [duplicate]

... i mean screen size in pixels. – evilone May 29 '11 at 9:46 ...
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iOS start Background Thread

...formSelectorInBackground:withObject: to spawn a new thread, then the performed selector is responsible for setting up the new thread's autorelease pool, run loop and other configuration details – see "Using NSObject to Spawn a Thread" in Apple's Threading Programming Guide. You'd probably be bett...
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How many system resources will be held for keeping 1,000,000 websocket open? [closed]

...swer: This question is not unique to WebSockets since WebSockets are fundamentally long-lived TCP sockets with a HTTP-like handshake and minimal framing for messages. The real question is: could a single server handle 1,000,000 simultaneous socket connections and what server resources would this c...