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How to check if BigDecimal variable == 0 in java?
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Use compareTo(BigDecimal.ZERO) instead of equals():
if (price.compareTo(BigDecimal.ZERO) == 0) // see below
Comparing with the BigDecimal constant BigDecimal.ZERO avoids having to construct a new BigDecimal(0) every execution....
Check if an apt-get package is installed and then install it if it's not on Linux
...s, too.
dpkg-query -l <packagename>
To find what package owns the command, try:
dpkg -S `which <command>`
For further details, see article Find out if package is installed in Linux and dpkg cheat sheet.
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Commenting code in Notepad++
...d any means (not the manual way but something like in Emacs) to do a block comment in my code.
10 Answers
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SQL Server principal “dbo” does not exist,
...er. My database did not have had any owner before this issue. Execute this command in your database to set owner to sysadmin account:
use [YourDatabaseName] EXEC sp_changedbowner 'sa'
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After installation of Gulp: “no command 'gulp' found”
After installing gulp.js via npm, I receive a no command 'gulp' found error when running the gulp command from the same directory it was installed into.
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How to make the division of 2 ints produce a float instead of another int?
...The other operand will be effectively automatically cast to a float by the compiler because the rules say that if either operand is of floating point type then the operation will be a floating point operation, even if the other operand is integral. Java Language Specification, §4.2.4 and §15.17
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for each loop in Objective-C for accessing NSMutable dictionary
...does it not really matter.
– FlowUI. SimpleUITesting.com
Apr 2 '12 at 4:23
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What to do about a 11000 lines C++ source file?
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community wiki
Steve Jessop
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How to remove the URL from the printing page?
... edited May 23 '17 at 12:18
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111 silver badge
answered Feb 20 '13 at 9:05
Chamika SandamalCham...
How to Reload ReCaptcha using JavaScript?
...ptcha.reset(); to reset the captcha.
Source : https://developers.google.com/recaptcha/docs/verify#api-request
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