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Minimum and maximum date

...Javascript Date object. I found that the minimum date is something like 200000 B.C., but I couldn't get any reference about it. ...
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How much does it cost to develop an iPhone application? [closed]

...ty close to 1,100 hours. Our rate for clients is $150 per hour giving $165,000 just for new code. Remember also that we were reusing a bunch existing code: I'm going to lowball the value of that code at $35,000 giving a total development cost of $200,000. Anyone who's done serious iPhone developmen...
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Hash collision in git

... per character times 40... 160 bits. Now we know 10 bits is approximately 1000 (1024 to be exact) meaning that there are 1 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 different SHA-1 hashes... 1048. What is this equivalent of? Well the Moon is made up of about 1047 atoms. So if w...
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MySQL offset infinite rows

...,744,073,709,551,615 records back? In fact, what would you do if you got 1,000,000,000 records? Maybe you do want more than one billion records, but my point is that there is some limit on the number you want, and it is less than 18 quintillion. For the sake of stability, optimization, and possibly...
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New features in java 7

...dest)) { // code } Underscores in numeric literals int one_million = 1_000_000; Strings in switch String s = ... switch(s) { case "quux": processQuux(s); // fall-through case "foo": case "bar": processFooOrBar(s); break; case "baz": processBaz(s); // fall-thr...
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Why is the String class declared final in Java?

...d, etc., because they will never change. So if you ever decide to create 1,000,000 string "hello" what you'd really do is create 1,000,000 pointers to "hello". As well alling any function on string, or any wrappers for that reason, would result in creating another object (again look at object ID - i...
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How can I generate random alphanumeric strings?

... CryptoRNGDemo { class Program { const int REPETITIONS = 1000000; const int KEY_SIZE = 32; static void Main(string[] args) { Console.WriteLine("Original BIASED implementation"); PerformTest(REPETITIONS, KEY_SIZE, KeyGenerator.GetUniqu...
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Identifying and removing null characters in UNIX

... I’d use tr: tr < file-with-nulls -d '\000' > file-without-nulls If you are wondering if input redirection in the middle of the command arguments works, it does. Most shells will recognize and deal with I/O redirection (<, >, …) anywhere in the comman...
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Why is IntelliJ 13 IDEA so slow after upgrading from version 12?

...=6, but it didn't fix the problem. The git repository is 1.3 gigs with 65,000 files. I created a new "grails" project in a new git repository, and there is no issue. I created a new grails project in the existing large git repository, and intellij is slow. I turned off git integration by opening ...
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Multiprocessing vs Threading Python [duplicate]

...iters): result = (result * result * i + 2 * result * i * i + 3) % 10000000 return result class CpuThread(threading.Thread): def __init__(self, niters): super().__init__() self.niters = niters self.result = 1 def run(self): self.result = cpu_func(s...