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Run class in Jar file
If you have a jar file called myJar.jar located in /myfolder and you want to use the class called myClass from it, how do you go about doing it from the command line?
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Is multiplication and division using shift operators in C actually faster?
Multiplication and division can be achieved using bit operators, for example
19 Answers
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How to get correct timestamp in C#
...e(), which returns January 1, 0001 at 00:00:00.000 instead of current date and time. The correct syntax to get current date and time is DateTime.Now, so change this:
String timeStamp = GetTimestamp(new DateTime());
to this:
String timeStamp = GetTimestamp(DateTime.Now);
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Web Reference vs. Service Reference
...hat comes up, click on the [Advanced] button in the button left corner:
and on the next dialog that comes up, pick the [Add Web Reference] button at the bottom.
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Python Pandas: Get index of rows which column matches certain value
...ue
50 True
[3 rows x 1 columns]
If you have a boolean array, mask, and need ordinal index values, you can compute them using np.flatnonzero:
In [110]: np.flatnonzero(df['BoolCol'])
Out[112]: array([0, 3, 4])
Use df.iloc to select rows by ordinal index:
In [113]: df.iloc[np.flatnonzero(df...
jQuery get the location of an element relative to window
...need to get the screen location of the element's rectangle (as in position and dimension) as it is currently being displayed. Negative values are acceptable if the element is currently off-screen (have been scrolled off).
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Right way to initialize an OrderedDict using its constructor such that it retains order of initial d
...e anything. There's no difference between OrderedDict([(i,i) for i in l]) and OrderedDict([('b', 'b'), ('a', 'a'), ('c', 'c'), ('aa', 'aa')]). The list comprehension is evaluated and creates the list and it is passed in; OrderedDict knows nothing about how it was created.
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How to make/get a multi size .ico file? [closed]
...ources to confirm to yourself that this is a sensible list of resolutions and colour depths.
Make sure you use transparency round the outside of your image, and anti-aliased edges. You should see the grey checkerboard effect round the outside of your layers to indicate they are transparent
The 16x1...
JavaScript/regex: Remove text between parentheses
...ce(/\s*\(.*?\)\s*/g, ''));
That'll also replace excess whitespace before and after the parentheses.
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What is the proper #include for the function 'sleep()'?
I am using the Big Nerd Ranch book Objective-C Programming, and it starts out by having us write in C in the first few chapters. In one of my programs it has me create, I use the sleep function. In the book it told me to put #include <stdlib.h> under the #include <stdio.h> part. This...