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System.Threading.Timer in C# it seems to be not working. It runs very fast every 3 second

I've a timer object. I want it to be run every minute. Specifically, it should run a OnCallBack method and gets inactive while a OnCallBack method is running. Once a OnCallBack method finishes, it (a OnCallBack ) restarts a timer. ...
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How can I make SQL case sensitive string comparison on MySQL?

...y default. This means that if you search with col_name LIKE 'a%', you get all column values that start with A or a. To make this search case sensitive, make sure that one of the operands has a case sensitive or binary collation. For example, if you are comparing a column and a string that both have...
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How does one create an InputStream from a String? [duplicate]

...may not be the one you want here). For me, this is UTF-8 (which can encode all Java Strings). The right answer would be "indicate the encoding you really want", not "use UTF-16". And you can use it with .getBytes(charsetName), don't have to explicitly create a Charset object and encode the String to...
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Difference between Ctrl+Shift+F and Ctrl+I in Eclipse

... just format tabs/whitespaces in code and pressing CTRL + SHIFT + F format all code that is format tabs/whitespaces and also divide code lines in a way that it is visible without horizontal scroll. share | ...
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Pythonic way to find maximum value and its index in a list?

...many options, for example: import operator index, value = max(enumerate(my_list), key=operator.itemgetter(1)) share | improve this answer | follow | ...
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Determine if variable is defined in Python [duplicate]

...ime? This is not always obvious because (1) the variable could be conditionally set, and (2) the variable could be conditionally deleted. I'm looking for something like defined() in Perl or isset() in PHP or defined? in Ruby. ...
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'float' vs. 'double' precision

...cand, and an exponent. Because of this encoding, many numbers will have small changes to allow them to be stored. Also, the number of significant digits can change slightly since it is a binary representation, not a decimal one. Single precision (float) gives you 23 bits of significand, 8 bits of...
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Why Would I Ever Need to Use C# Nested Classes [duplicate]

...third parties to create their own subclasses. I have complete control over all the code that runs in any bankaccount object. And all my subclasses can share implementation details via the base class. share | ...
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Python __call__ special method practical example

I know that __call__ method in a class is triggered when the instance of a class is called. However, I have no idea when I can use this special method, because one can simply create a new method and perform the same operation done in __call__ method and instead of calling the instance, you can c...
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Is there a way to cache GitHub credentials for pushing commits?

...itched to synchronizing my repositories to https:// on GitHub (due to firewall issues), and it asks for a password every time. ...