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Weird Integer boxing in Java
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The true line is actually guaranteed by the language specification. From section 5.1.7:
If the value p being boxed is true,
false, a byte, a char in the range
\u0000 to \u007f, or an int or short
number between -128 and 127, ...
Which MySQL datatype to use for an IP address? [duplicate]
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Since IPv4 addresses are 4 byte long, you could use an INT (UNSIGNED) that has exactly 4 bytes:
`ipv4` INT UNSIGNED
And INET_ATON and INET_NTOA to convert them:
INSERT INTO `table` (`ipv4`) VALUES (INET_ATON("127.0.0.1"));...
Why does the default parameterless constructor go away when you create one with parameters
In C#, C++ and Java, when you create a constructor taking parameters, the default parameterless one goes away. I have always just accepted this fact, but now I've started wondering why.
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What is the best way to test for an empty string in Go?
Which method is best (more idomatic) for testing non-empty strings (in Go)?
10 Answers
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Python vs Bash - In which kind of tasks each one outruns the other performance-wise? [closed]
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Typical mainframe flow...
Input Disk/Tape/User (runtime) --> Job Control Language (JCL) --> Output Disk/Tape/Screen/Printer
| ^
v ...
What is the easiest way to get the current day of the week in Android?
What would be the easiest way to get the current day of the week in Android?
11 Answers
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Efficient way to remove keys with empty strings from a dict
...t and would like to remove all the keys for which there are empty value strings.
17 Answers
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Mac OSX Lion DNS lookup order [closed]
After upgrading to Mac OSX Lion I figured out that /etc/hosts is not looked up in first place for name resolution anymore. This leads to some side effects like:
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Suppressing “warning CS4014: Because this call is not awaited, execution of the current method conti
This is not a duplicate of "How to safely call an async method in C# without await" .
8 Answers
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Allowed memory size of 33554432 bytes exhausted (tried to allocate 43148176 bytes) in php
This error message is being presented, any suggestions?
21 Answers
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