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How to install Homebrew on OS X?
...
It's on the top of the Homebrew homepage.
From a Terminal prompt:
ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
The command brew install wget is an example of how to use Homebrew to install another application (in this case, wget) after brew is alr...
Update a table using JOIN in SQL Server?
...T [key], CalculatedColumn = SUM(some_column)
FROM dbo.table2
GROUP BY [key]
)
UPDATE t1
SET t1.CalculatedColumn = t2.CalculatedColumn
FROM dbo.table1 AS t1
INNER JOIN t2
ON t1.[key] = t2.[key];
The reason this is really silly, is that you're going to have to re-run this entire upda...
The most sophisticated way for creating comma-separated Strings from a Collection/Array/List?
...ggestion in the question can be written even more clearly and efficiently, by taking care of the redundant trailing comma:
StringBuilder result = new StringBuilder();
for(String string : collectionOfStrings) {
result.append(string);
result.append(",");
}
return resul...
Navigation bar show/hide
...ithEvent: method and count how many touches you get in a duration of time, by measuring the time between two consecutive taps, perhaps with CACurrentMediaTime(). Or test the result from [touch tapCount].
If you get two taps, your subclassed view issues an NSNotification that your view controller has...
How can I write text on a HTML5 canvas element?
...
var canvas = document.getElementById("my-canvas");
var context = canvas.getContext("2d");
context.fillStyle = "blue";
context.font = "bold 16px Arial";
context.fillText("Zibri", (canvas.width / 2) - 17, (canvas.height / 2) + 8);
#my-canvas {
backg...
Good Java graph algorithm library? [closed]
... and packages hep.aida.* are LGPL (via the colt library, which is imported by JUNG). This prevents JUNG from being used in projects under the umbrella of ASF and ESF. Maybe one should use the github fork and remove that dependency. Commit f4ca0cd is mirroring the last CVS commit. The current commits...
Error : BinderProxy@45d459c0 is not valid; is your activity running?
...
I faced the same problem and used the code proposed by DiscDev above with minor changes as follows:
if (!MainActivity.this.isFinishing()){
alertDialog.show();
}
share
|
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How to write a bash script that takes optional input arguments?
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For optional multiple arguments, by analogy with the ls command which can take one or more files or by default lists everything in the current directory:
if [ $# -ge 1 ]
then
files="$@"
else
files=*
fi
for f in $files
do
echo "found $f"
done
D...
Using the field of an object as a generic Dictionary key
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By default, the two important methods are GetHashCode() and Equals(). It is important that if two things are equal (Equals() returns true), that they have the same hash-code. For example, you might "return FooID;" as the GetH...
Last iteration of enhanced for loop in java
...e you append i, just not on the first iteration. (Please don't use "" + i, by the way - you don't really want concatenation here, and StringBuilder has a perfectly good append(int) overload.)
int[] array = {1, 2, 3...};
StringBuilder builder = new StringBuilder();
for (int i : array) {
if (bui...