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Why there is no ConcurrentHashSet against ConcurrentHashMap
...no built in type for ConcurrentHashSet because you can always derive a set from a map. Since there are many types of maps, you use a method to produce a set from a given map (or map class).
Prior to Java 8, you produce a concurrent hash set backed by a concurrent hash map, by using Collections.newS...
Is it possible to use “/” in a filename?
... ASCII 0x2F. ASCII is a big no-no since at least 20 years. (Unicode 1.0 is from 1991!)
– Evi1M4chine
Jun 5 '16 at 9:30
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How do I set the figure title and axes labels font size in Matplotlib?
...ame as matplotlib.text.Text. For the font size you can use size/fontsize:
from matplotlib import pyplot as plt
fig = plt.figure()
plt.plot(data)
fig.suptitle('test title', fontsize=20)
plt.xlabel('xlabel', fontsize=18)
plt.ylabel('ylabel', fontsize=16)
fig.savefig('test.jpg')
For globally se...
How to generate random number with the specific length in python
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To get a random 3-digit number:
from random import randint
randint(100, 999) # randint is inclusive at both ends
(assuming you really meant three digits, rather than "up to three digits".)
To use an arbitrary number of digits:
from random import randin...
What are the reasons why Map.get(Object key) is not (fully) generic
...specification of the method only requires that they be equal. This follows from how the equals() method takes in an Object as parameter, not just the same type as the object.
Although it may be commonly true that many classes have equals() defined so that its objects can only be equal to objects of...
IIS 500.19 with 0x80070005 The requested page cannot be accessed because the related configuration d
...d is the same folder as your IIS website physical path. Choose properties from the context menu and click on the Security tab. Edit users, and then Add a user. Click the Locations button and choose the top icon (looks like My Computer). In the text area, enter IIS_IUSRS. Press OKs repeatedly un...
How to convert string to Title Case in Python?
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Why not use title Right from the docs:
>>> "they're bill's friends from the UK".title()
"They'Re Bill'S Friends From The Uk"
If you really wanted PascalCase you can use this:
>>> ''.join(x for x in 'make IT pascal CaSe'.title()...
Pretty printing JSON from Jackson 2.2's ObjectMapper
...ring, Object>());. You just have to make sure to use the writer you get from the configured ObjectMapper.
– Martin
Jul 11 '17 at 14:04
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How do Third-Party “tracking cookies” work?
...iframe src="http://websiteB.com/ad.html></iframe> to serve the ad from website B. Then when your browser goes to fetch http://websiteB.com/ad.html, the response will come back with a Set-Cookie header that sets a cookie with some unique random string. If website C also includes an ad from w...
Don't understand why UnboundLocalError occurs (closure) [duplicate]
...ignments bind names, so can imports, so you may also get UnboundLocalError from a statement that uses an unbounded imported name. Example: def foo(): bar = deepcopy({'a':1}); from copy import deepcopy; return bar, then from copy import deepcopy; foo(). The call succeeds if the local import from cop...