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A simple scenario using wait() and notify() in java
...this (other than the standard thread safety concerns) is due to something known as a missed signal.
An example of this, is that a thread may call put() when the queue happens to be full, it then checks the condition, sees that the queue is full, however before it can block another thread is schedu...
What is the difference between JOIN and UNION?
...n one table to look up column values by using the primary key in another.
Now compare the above depiction with that of a union. In a union each row within the result is from one table OR the other. In a union, columns aren’t combined to create results, rows are combined.
Both joins and union...
Finding the max value of an attribute in an array of objects
...
also it's good to know that it returns -Infinity (a truthy value) for an empty array
– icl7126
Nov 6 '16 at 13:08
1
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SQlite Getting nearest locations (with latitude and longitude)
...w PointF((float) lat, (float) lon);
return newPoint;
}
And now create your query:
PointF center = new PointF(x, y);
final double mult = 1; // mult = 1.1; is more reliable
PointF p1 = calculateDerivedPosition(center, mult * radius, 0);
PointF p2 = calculateDerivedPosition(center, mul...
What is the difference between varchar and nvarchar?
... and Unicode is the cure for codepage problems. With cheap disk and memory nowadays, there is really no reason to waste time mucking around with code pages anymore.
All modern operating systems and development platforms use Unicode internally. By using nvarchar rather than varchar, you can avoid do...
CSS3's border-radius property and border-collapse:collapse don't mix. How can I use border-radius to
...le tr:last-child td:last-child {
border-bottom-right-radius: 10px;
}
Now everything rounds properly, except that there's still the issue of border-collapse: collapse breaking everything.
A workaround is to add border-spacing: 0 and leave the default border-collapse: separate on the table.
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How to embed a SWF file in an HTML page?
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Thanks for your answer. Now can you suggest a player as well for accessing playback capability along with working example in html itself. ????
– Sumit Ramteke
Dec 18 '13 at 4:16
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Images can't contain alpha channels or transparencies
... inexplicable reason, when I do this it cuts the dimensions in half and is now "wrong size" for iTC! WTF Apple???
– mharper
Dec 19 '14 at 23:53
14
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How do I find out which DOM element has the focus?
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If you can use jQuery, it now supports :focus, just make sure you are using version 1.6+.
This statement will get you the currently focused element.
$(":focus")
From: How to select an element that has focus on it with jQuery
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Django rest framework nested self-referential objects
...tionships is something that needs to be added.
Edit: Note that there is now a third-party package available that specifically deals with this kind of use-case. See djangorestframework-recursive.
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