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How can I check if multiplying two numbers in Java will cause an overflow?
...people who really understand machine arithmetic in Java and which has been tested by lots of people. Don't attempt to write your own or use any of the half-baked untested code posted in the other answers!
– Rich
Jan 21 '14 at 11:22
...
Remove sensitive files and their commits from Git history
...situation where you're rewriting history. When others try pull down your latest changes after this, they'll get a message indicating that the changes can't be applied because it's not a fast-forward.
To fix this, they'll have to either delete their existing repository and re-clone it, or follow th...
How can I parse a JSON file with PHP? [duplicate]
...apsuled in OOP, so you have better reuse and you can easily mock it in UnitTests plus you can stack Iterators with other iterators doing different things, like limiting, caching, filtering and so on.. in addition to any custom iterators you might want to create.
– Gordon
...
comparing sbt and Gradle [closed]
...a revision which can be given as a fixed one (1.5.2, for instance) or as latest (or dynamic) one.
See "Ivy Dependency"
That means the "-SNAPSHOT" mechanism support can be problematic, even though Mark Harrah details in this thread:
It is true the cache can get confused, but it is not true that Ivy...
Is there an alternative to bastard injection? (AKA poor man's injection via default constructor)
...ad of a config file? What if you want to vary configuration values in unit tests? What if you want to make the configuration value configurable via the UI? ...FWIW, I've expanded on the DI friendly library recommendations here, including more code examples.
– Mark Seemann
...
UnboundLocalError on local variable when reassigned after first use
...f you want to modify it, you have to use the global keyword. Try changing test() to this:
def test():
global c
print(a)
print(b)
print(c) # (A)
c+=1 # (B)
Also, the reason you are getting this error is because you can also declare a new variable inside that function...
Character reading from file in Python
...iles in update mode, allowing both reading and writing:
with codecs.open('test', encoding='utf-8', mode='w+') as f:
f.write(u'\u4500 blah blah blah\n')
f.seek(0)
print repr(f.readline()[:1])
EDIT: I'm assuming that your intended goal is just to be able to read the file properly into a...
What should I do if two libraries provide a function with the same name generating a conflict?
...ATE: I just did it on this end and it seems to work. Of course, I've not tested this thoroughly - it may be no more than a really good way to blow your leg off with a hexedit shotgun.
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pandas dataframe columns scaling with sklearn
...import MinMaxScaler
>>> scaler = MinMaxScaler()
>>> dfTest = pd.DataFrame({'A':[14.00,90.20,90.95,96.27,91.21],
'B':[103.02,107.26,110.35,114.23,114.68],
'C':['big','small','big','small','small']})
>>> dfTest[['A', ...
App Inventor 2 构建纯血鸿蒙 HarmonyOS App · App Inventor 2 中文网
...eight: 24px; margin-bottom: 4px; background: url(/static/images/feedback.svg) 50% / 100% auto no-repeat; } 文档反馈 切换 目录 在线 客服 扫码添加客服咨询 我要 分享 ...