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WPF and initial focus
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I'm surprised I'm the first person who commented on this. I was confused as to where this went because it could go on almost any control. In answer to this specific question, I think it would go on the window, but you can read the remarks on msdn.microsoft.com/en-...
UPDATE multiple tables in MySQL using LEFT JOIN
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How to create a new java.io.File in memory?
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ERROR 1130 (HY000): Host '' is not allowed to connect to this MySQL server [duplicate]
...to any account, may only have been added with localhost access (which is recommended).
You can check this with:
SELECT host FROM mysql.user WHERE User = 'root';
If you only see results with localhost and 127.0.0.1, you cannot connect from an external source. If you see other IP addresses, but no...
How to make a copy of a file in android?
...ly clause programatically or use try-with-resource new syntax: docs.oracle.com/javase/tutorial/essential/exceptions/…
– earizon
Jul 18 '15 at 17:27
4
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not None test in Python [duplicate]
...r of the latter two, since val could potentially be of a type that defines __eq__() to return true when passed None.
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Difference between “process.stdout.write” and “console.log” in node.js?
...onsole.log = function (d) {
process.stdout.write(d + '\n');
};
Source: http://nodejs.org/docs/v0.3.1/api/process.html#process.stdout
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What is Bit Masking?
...esult: 00000101b
Masking is implemented using AND, so in C we get:
uint8_t stuff(...) {
uint8_t mask = 0x0f; // 00001111b
uint8_t value = 0x55; // 01010101b
return mask & value;
}
Here is a fairly common use-case: Extracting individual bytes from a larger word. We define the high-...
How can building a heap be O(n) time complexity?
...them into the proper order (depending on the type of heap of course).
See http://en.wikipedia.org/wiki/Binary_heap, "Building a heap" for an example. In this case you essentially work up from the bottom level of the tree, swapping parent and child nodes until the heap conditions are satisfied.
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python generator “send” function purpose?
...is an artificial (non-useful) explanatory example:
>>> def double_inputs():
... while True:
... x = yield
... yield x * 2
...
>>> gen = double_inputs()
>>> next(gen) # run up to the first yield
>>> gen.send(10) # goes into 'x' variabl...