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Create a GUID in Java
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355
Have a look at the UUID class bundled with Java 5 and later.
For example:
If you want a ra...
How can I increment a char?
...ord('c') + 1
100
>>> chr(ord('c') + 1)
'd'
>>>
Python 3.x makes this more organized and interesting, due to its clear distinction between bytes and unicode. By default, a "string" is unicode, so the above works (ord receives Unicode chars and chr produces them).
But if you're i...
How do I draw a grid onto a plot in Python?
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223
You want to use pyplot.grid:
x = numpy.arange(0, 1, 0.05)
y = numpy.power(x, 2)
fig = plt.figu...
MySQL ON DUPLICATE KEY UPDATE for multiple rows insert in single query
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3 Answers
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Mocking objects with Moq when constructor has parameters
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34
The last line is giving you a real instance because you are using the new keyword, not mocking ...
How do I find numeric columns in Pandas?
...clude and exclude. So isNumeric would look like:
numerics = ['int16', 'int32', 'int64', 'float16', 'float32', 'float64']
newdf = df.select_dtypes(include=numerics)
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Sprintf equivalent in Java
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Dave Jarvis
27.6k3434 gold badges157157 silver badges281281 bronze badges
answered Sep 5 '08 at 23:06
Eugene YokotaEug...
Else clause on Python while statement
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396
The else clause is only executed when your while condition becomes false. If you break out of...
Change UITextField and UITextView Cursor / Caret Color
...or using the appearance proxy and it will apply throughout the app:
Swift 3.0:
UITextField.appearance().tintColor = .black
Objective-C:
[[UITextField appearance] setTintColor:[UIColor blackColor]];
Same answer applies for an individual UITextField:
Swift 3.0:
myTextField.tintColor = .black...