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How can I determine whether a 2D Point is within a Polygon?
...at the end has been discussed in the article referred above.
vertx, verty: Arrays containing the x- and y-coordinates of the polygon's vertices.
testx, testy: X- and y-coordinate of the test point.
It's both short and efficient and works both for convex and concave polygons. As suggested before, y...
Get size of folder or file
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From File.listFiles() javadoc: "The array will be empty if the directory is empty. Returns null if this abstract pathname does not denote a directory, or if an I/O error occurs." So above comment is useful when getting folder size on dynamically changing fold...
Find XOR of all numbers in a given range
...at it's not completely optimal (i.e. use a switch statement rather than an array).
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Adding multiple class using ng-class
...ement. I've submitted an edit to the accepted answer to include the use of arrays of expressions.
– Daniel Bonnell
Aug 19 '16 at 19:05
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How can I include raw JSON in an object using Jackson?
...d be the official answer. I tried with a very complex structure containing arrays, subobjects, etc. Maybe you edit your answer and add that the String member to be deserialized should be annotated by @JsonDeserialize( using = KeepAsJsonDeserialzier.class ). (and correct the typo in your class name ;...
Convert all first letter to upper case, rest lower for each word
...e second way (which is slightly faster) is to split the string into a char array and then re-build the string:
public string UppercaseFirst(string s)
{
char[] a = s.ToCharArray();
a[0] = char.ToUpper(a[0]);
return new string(a);
}
...
How do I parse command line arguments in Bash?
...t
;;
*) # unknown option
POSITIONAL+=("$1") # save it in an array for later
shift # past argument
;;
esac
done
set -- "${POSITIONAL[@]}" # restore positional parameters
echo "FILE EXTENSION = ${EXTENSION}"
echo "SEARCH PATH = ${SEARCHPATH}"
echo "LIBRARY PATH = ${LIBP...
Android: Access child views from a ListView
...stand why you believe that child views appear in the order they are in the array of child views. Since views can be reused how can we be sure that first view doesn't represent the last visible view?
– Victor Denisov
Oct 28 '13 at 10:01
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How to implement a queue with three stacks?
...t a copy of reference. Its just to describe it easy. You could also use an array of 3 stacks and access them via index, there you would just change the value of the index variable). Everything is in O(1) in stack-operation-terms.
And yes I know its argueable, because we have implicit more than 3 st...
How can I simulate an anchor click via jquery?
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[0] indicates the first element of the array - a selector returns 0 or more elements when its executed. Its unfortunate that .click() doesn't seem to work directly here since seemingly other invocations are applied to collections of elements from selectors consist...