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Postgres - FATAL: database files are incompatible with server
...services stop postgresql
$ brew services start postgresql
Otherwise, consider this brew command to migrate existing data: brew postgresql-upgrade-database. Check out the source code.
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impro...
.NET Process.Start default directory?
I'm firing off a Java application from inside of a C# .NET console application. It works fine for the case where the Java application doesn't care what the "default" directory is, but fails for a Java application that only searches the current directory for support files.
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Target elements with multiple classes, within one rule
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Thanks! I didn't know if this was possible, so I was asking here to find out.
– Tanner Ottinger
Mar 4 '11 at 16:41
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Reloading module giving NameError: name 'reload' is not defined
...de at import time that isn't designed to run twice. So it is better to avoid reloading, but frequently very convenient.
– Evan
Jul 10 '17 at 20:03
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What is meant by Scala's path-dependent types?
...while occupied's type is Set[b1.Coordinate]. Note that one can use another identifier with the same type of b1, so it is not the identifier b1 that is associated with the type. For example, the following works:
val b3: b1.type = b1
val c3 = b3.Coordinate(10, 10)
b1.occupied += c3
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Force overwrite of local file with what's in origin repo?
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This did the opposite. It overwrote the repository with my local files erroneously.
– C_Rod
Dec 1 '16 at 0:16
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How to write to a JSON file in the correct format
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled...
How to wait for 2 seconds?
...onfusing this with WAITFOR TIME, but it also works for WAITFOR DELAY.
Considerations for passing DATETIME:
It must be passed as a variable, so it isn't a nice one-liner anymore.
The delay is measured as the time since the Epoch ('1900-01-01').
For situations that require a variable amount of dela...
error upon assigning Layout: BoxLayout can't be shared
...convenience, the add, remove, and setLayout methods of this class are overridden, so that they delegate calls to the corresponding methods of the ContentPane. For example, you can add a child component to a frame as follows: frame.add(child); And the child will be added to the contentPane. The conte...
Java variable number or arguments for a method
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That's correct. You can find more about it in the Oracle guide on varargs.
Here's an example:
void foo(String... args) {
for (String arg : args) {
System.out.println(arg);
}
}
which can be called as
foo("foo"); // Single arg.
foo("foo", "bar"); // Multiple args.
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