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Creating a daemon in Linux
...rr in the way you probably want.
Usually a syslog daemon (syslogd) is used for logging messages to files (debug, error,...).
Besides that, there are a few required steps to daemonize a process.
If I remember correctly these steps are:
fork off the parent process & let it terminate if forki...
Java String - See if a string contains only numbers and not letters
... and only match if it is a valid number (negatives and decimals included). For example, it will match 1, 10, 1.0, -1, -1.0, etc. It'll also match on "1." but that can often be parsed anyway.
– user358089
Dec 4 '14 at 19:59
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ASP.NET MVC: Custom Validation by DataAnnotation
...lt; this.MinLength)
{
return new ValidationResult(this.FormatErrorMessage(validationContext.DisplayName));
}
return null;
}
}
and then you might have a view model and decorate one of its properties with it:
public class MyViewModel
{
[CombinedMinLength(...
Why does Eclipse automatically add appcompat v7 library support whenever I create a new project?
... noted that you target API 15 in your sample, but the miminum required SDK for your package is API 10, for which the compatibility libraries can provide a tremendous amount of backward compatible APIs. An example would be the ability of using the Fragment API which appeard on API 11 (Android 3.0 Hon...
R: rJava package install failing
...elp as R 3.x is mainstream now, while packages in r-cran- are apparently before R 3.x
– Richard
Sep 29 '14 at 9:04
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show 12 more comments
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Setting variable to NULL after free
...ng rule that says, after freeing any memory, reset the variable to NULL . For example ...
23 Answers
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Change Oracle port from port 8080
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+1, this worked perfectly for my Oracle XE installation (moved it from port 8080 to port 8088 using exec dbms_xdb.sethttpport(8088)).
– Amos M. Carpenter
Aug 13 '12 at 1:13
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How to install the JDK on Ubuntu Linux
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Referring to Ask Ubuntu question How to set JAVA_HOME for OpenJDK?,
How to install Open JDK (Java developement kit) in Ubuntu (Linux)?
Open Terminal from Application Dash or press Ctrl+Alt+T
Update repository:
sudo add-apt-repository ppa:openjdk-r/ppa # only Ubuntu 17.4 and...
See line breaks and carriage returns in editor
...! [++opt] [+cmd]. And :help ++e says The [++opt] argument can be used to force the value of 'fileformat' [..].
– dennis
Oct 6 '15 at 11:35
19
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Making an array of integers in iOS
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You can use a plain old C array:
NSInteger myIntegers[40];
for (NSInteger i = 0; i < 40; i++)
myIntegers[i] = i;
// to get one of them
NSLog (@"The 4th integer is: %d", myIntegers[3]);
Or, you can use an NSArray or NSMutableArray, but here you will need to wrap up each inte...