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Cross field validation with Hibernate Validator (JSR 303)
...-field validation should be done at the class level. Additionally, the JSR-303 Section 2.2 preferred way to express multiple validations of the same type is via a list of annotations. This allows the error message to be specified per match.
For example, validating a common form:
@FieldMatch.List...
What is the difference between atan and atan2 in C++?
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std::atan2 allows calculating the arctangent of all four quadrants. std::atan only allows calcu...
How to get the result of OnPostExecute() to main activity because AsyncTask is a separate class?
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HelmiBHelmiB
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What's the difference between event.stopPropagation and event.preventDefault?
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RaynosRaynos
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Pythonic way to check if a file exists? [duplicate]
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edited Feb 13 '10 at 22:59
mechanical_meat
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Maven: Failed to read artifact descriptor
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Gal BrachaGal Bracha
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UICollectionView current visible cell index
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The method [collectionView visibleCells] give you all visibleCells array you want. Use it when ...
Put icon inside input element in a form
...und: url(images/comment-author.gif) no-repeat scroll 7px 7px;
padding-left:30px;
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Reduce left and right margins in matplotlib plot
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E.g.
import matplotlib.pyplot as plt
import numpy as np
data = np.arange(3000).reshape((100,30))
plt.imshow(data)
plt.savefig('test.png', bbox_inches='tight')
Another way is to use fig.tight_layout()
import matplotlib.pyplot as plt
import numpy as np
xs = np.linspace(0, 1, 20); ys = np.sin(xs)...
The requested operation cannot be performed on a file with a user-mapped section open
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answered Mar 12 '13 at 19:14
Daniel LoboDaniel Lobo
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