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Bash Templating: How to build configuration files from templates with Bash?
.../$LHS/$RHS}
done
echo "$line"
done
. Solution that does not hang if RHS references some variable that references itself:
#!/bin/bash
line="$(cat; echo -n a)"
end_offset=${#line}
while [[ "${line:0:$end_offset}" =~ (.*)(\$\{([a-zA-Z_][a-zA-Z_0-9]*)\})(.*) ]] ; do
PRE="${BASH_REMATCH[1]...
How can I get device ID for Admob
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If you are running admob ads on an emulator then there is no ID. just use the AdManager method and set it to TEST_EMULATOR like the logcat says. If you run on an actual device with usb debugging and watch the logcat, the ID...
Android List Preferences: have summary as selected value?
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@BaptisteCandellier thanks for the heads-up. If something exists, the Android team will deprecate it. I've added a link to androidx.
– George Hilliard
Jul 1 '19 at 22:02
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How to prove that a problem is NP complete?
...e information C, you can create a polynomial time algorithm V that will verify for every possible input X whether X is in your domain or not.
Example
Prove that the problem of vertex covers (that is, for some graph G, does it have a vertex cover set of size k such that every edge in G has at least o...
Recommended way to stop a Gradle build
...ered something invalid, or GradleScriptException for more general errors.
If you want to stop the current task or action, and move on to the next, you can also throw a StopActionException
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is it possible to select EXISTS directly as a bit?
I was wondering if it's possible to do something like this (which doesn't work):
9 Answers
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How default .equals and .hashCode will work for my classes?
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Yes, the default implementation is Object's (generally speaking; if you inherit from a class that redefined equals and/or hashCode, then you'll use that implementation instead).
From the documentation:
equals
The equals method for class Object implements the most discriminating possi...
Convert Rows to columns using 'Pivot' in SQL Server
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If you are using SQL Server 2005+, then you can use the PIVOT function to transform the data from rows into columns.
It sounds like you will need to use dynamic sql if the weeks are unknown but it is easier to see the correc...
Removing leading zeroes from a field in a SQL statement
... particular field, which is a simple VARCHAR(10) field. So, for example, if the field contains '00001A', the SELECT statement needs to return the data as '1A'.
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Alter MySQL table to add comments on columns
...tation for ALTER TABLE and it does not seem to include a way to add or modify a comment to a column. How can I do this?
5 ...