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BigDecimal - to use new or valueOf

...an be somewhat unpredictable. One might assume that writing new BigDecimal(0.1) in Java creates a BigDecimal which is exactly equal to 0.1 (an unscaled value of 1, with a scale of 1), but it is actually equal to 0.1000000000000000055511151231257827021181583404541015625. This is because 0.1 cannot be...
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Datatable vs Dataset

... | edited Apr 30 '15 at 10:31 Hossein Narimani Rad 26.3k1414 gold badges7575 silver badges106106 bronze badges ...
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Can't connect to local MySQL server through socket '/tmp/mysql.sock

... PratyayPratyay 1,90611 gold badge1313 silver badges1414 bronze badges ...
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Correct way to quit a Qt program?

...CoreApplication::quit() it "tells the application to exit with return code 0 (success).". If you want to exit because you discovered file corruption then you may not want to exit with return code zero which means success, so you should call QCoreApplication::exit() because you can provide a non-zero...
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What's a standard way to do a no-op in python?

... Use pass for no-op: if x == 0: pass else: print "x not equal 0" And here's another example: def f(): pass Or: class c: pass share | impr...
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Printing tuple with string formatting in Python

... 205 >>> thetuple = (1, 2, 3) >>> print "this is a tuple: %s" % (thetuple,) this i...
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How do I set a cookie on HttpClient's HttpRequestMessage

... Todd Menier 30.2k1414 gold badges124124 silver badges146146 bronze badges answered Sep 11 '12 at 16:57 Darin Dimit...
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Converting between datetime, Timestamp and datetime64

... np >>> dt = datetime.utcnow() >>> dt datetime.datetime(2012, 12, 4, 19, 51, 25, 362455) >>> dt64 = np.datetime64(dt) >>> ts = (dt64 - np.datetime64('1970-01-01T00:00:00Z')) / np.timedelta64(1, 's') >>> ts 1354650685.3624549 >>> datetime.utcfromt...
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Add a new element to an array without specifying the index in Bash

... | edited Dec 23 '09 at 9:18 answered Dec 23 '09 at 9:02 ...
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onTouchListener warning: onTouch should call View#performClick when a click is detected

... SeckoSecko 6,72044 gold badges2727 silver badges3535 bronze badges ...