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How to run a class from Jar which is not the Main-Class in its Manifest file
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222
You can create your jar without Main-Class in its Manifest file. Then :
java -cp MyJar.jar co...
Difference between Django's annotate and aggregate methods?
...jects.annotate(num_authors=Count('authors'))
>>> q[0].num_authors
2
>>> q[1].num_authors
1
q is the queryset of books, but each book has been annotated with the number of authors.
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Sharing src/test classes between modules in a multi-module maven project
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2 Answers
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How to force the browser to reload cached CSS/JS files?
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sql query to return differences between two tables
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What's a monitor in Java?
... synchronized(someObject) {
// do something (1)
}
}
Thread 2:
public void b()
{
synchronized(someObject) {
// do something else (2)
}
}
This prevents Threads 1 and 2 accessing the monitored (synchronized) section at the same time. One will start, and monitor will p...
How do I create an empty array in YAML?
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edited Feb 24 '11 at 22:50
answered Feb 24 '11 at 20:54
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Python exit commands - why so many and when should each be used?
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mhsmith
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answered Nov 2 '13 at 22:22
user2555451user2555...
What are the advantages of NumPy over regular Python lists?
...n lists -- a list of lists as you describe, in Python, would take at least 20 MB or so, while a NumPy 3D array with single-precision floats in the cells would fit in 4 MB. Access in reading and writing items is also faster with NumPy.
Maybe you don't care that much for just a million cells, but you...