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How to check if BigDecimal variable == 0 in java?
...mal(0) every execution.
FYI, BigDecimal also has constants BigDecimal.ONE and BigDecimal.TEN for your convenience.
Note!
The reason you can't use BigDecimal#equals() is that it takes scale into consideration:
new BigDecimal("0").equals(BigDecimal.ZERO) // true
new BigDecimal("0.00").equals(Big...
Java: how to convert HashMap to array
... answered Jul 7 '09 at 5:47
Landon KuhnLandon Kuhn
59.1k4141 gold badges9999 silver badges129129 bronze badges
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C++ obtaining milliseconds time on Linux — clock() doesn't seem to work properly
...unds it to the nearest 1000 so the precision is only to the "second" level and not to the milliseconds level.
16 Answers
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Maintain the aspect ratio of a div with CSS
...rce: w3.org, emphasis mine)
Padding-bottom values for other aspect ratios and 100% width :
aspect ratio | padding-bottom value
--------------|----------------------
16:9 | 56.25%
4:3 | 75%
3:2 | 66.66%
8:5 | 62.5%
Placing content in ...
Displaying the build date
... have an app displaying the build number in its title window. That's well and good except it means nothing to most of the users, who want to know if they have the latest build - they tend to refer to it as "last Thursday's" rather than build 1.0.8.4321.
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Best way to test if a row exists in a MySQL table
...ou could also try EXISTS:
SELECT EXISTS(SELECT * FROM table1 WHERE ...)
and per the documentation, you can SELECT anything.
Traditionally, an EXISTS subquery starts with SELECT *, but it could
begin with SELECT 5 or SELECT column1 or anything at all. MySQL
ignores the SELECT list in such ...
Calendar returns wrong month [duplicate]
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Months are indexed from 0 not 1 so 10 is November and 11 will be December.
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How to create a cron job using Bash automatically without the interactive editor?
...n file
crontab mycron
rm mycron
Cron line explaination
* * * * * "command to be executed"
- - - - -
| | | | |
| | | | ----- Day of week (0 - 7) (Sunday=0 or 7)
| | | ------- Month (1 - 12)
| | --------- Day of month (1 - 31)
| ----------- Hour (0 - 23)
------------- Minute (0 - 59)
Source nix...
Positioning element at center of screen
...creen irrespective of screen size. In other words, the space left on 'top' and 'bottom' should be equal and space left on 'right' and 'left' sides should be equal. I would like to accomplish this with only CSS.
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Access an arbitrary element in a dictionary in Python
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On Python 3, non-destructively and iteratively:
next(iter(mydict.values()))
On Python 2, non-destructively and iteratively:
mydict.itervalues().next()
If you want it to work in both Python 2 and 3, you can use the six package:
six.next(six.itervalue...