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Java: how can I split an ArrayList in multiple small ArrayLists?
How can I split an ArrayList (size=1000) in multiple ArrayLists of the same size (=10) ?
18 Answers
...
How can I get a java.io.InputStream from a java.lang.String?
...tringBuilder sample = new StringBuilder();
while (sample.length() < 100 * 1000) {
sample.append("sample");
}
Writer writer = new OutputStreamWriter(
new DataHandler(), "UTF-16");
writer.write(sample.toString());
writer.close();
}
}
The JVM implementation I'm...
Use numpy array in shared memory for multiprocessing
...()
logger.setLevel(logging.INFO)
# create shared array
N, M = 100, 11
shared_arr = mp.Array(ctypes.c_double, N)
arr = tonumpyarray(shared_arr)
# fill with random values
arr[:] = np.random.uniform(size=N)
arr_orig = arr.copy()
# write to arr from different proce...
Best data type to store money values in MySQL
...
I prefer to use BIGINT, and store the values in by multiply with 100, so that it will become integer.
For e.g., to represent a currency value of 93.49, the value shall be stored as 9349, while displaying the value we can divide by 100 and display. This will occupy less storage space.
...
UILabel with text of two different colors
...
// Try it with label
let label = UILabel()
label.frame = CGRect(x: 70, y: 100, width: 260, height: 30)
let stringValue = "There are 5 results."
let attributedString: NSMutableAttributedString = NSMutableAttributedString(string: stringValue)
attributedString.setColor(color: UIColor.red, forText: "5"...
Using numpy to build an array of all combinations of two arrays
...
@pv's solution
In [113]:
%timeit cartesian(([1, 2, 3], [4, 5], [6, 7]))
10000 loops, best of 3: 135 µs per loop
In [114]:
cartesian(([1, 2, 3], [4, 5], [6, 7]))
Out[114]:
array([[1, 4, 6],
[1, 4, 7],
[1, 5, 6],
[1, 5, 7],
[2, 4, 6],
[2, 4, 7],
[2, 5, 6...
How to get ELMAH to work with ASP.NET MVC [HandleError] attribute?
...
+100
You can subclass HandleErrorAttribute and override its OnException member (no need to copy) so that it logs the exception with ELMAH...
What does 'useLegacyV2RuntimeActivationPolicy' do in the .NET 4 config?
...you have run into the issue:
Mixed mode assembly is built against version 'v1.1.4322' of the runtime and cannot be loaded in the 4.0 runtime without additional configuration information.
[Snip]
The good news for applications is that you have the option of falling back to .NET 2.0 era binding for the...
Which are more performant, CTE or temporary tables?
...LECT TOP (1000000) 0 + CAST(NEWID() AS BINARY(4))
FROM master..spt_values v1,
master..spt_values v2;
Example 1
WITH CTE1 AS
(
SELECT A,
ABS(B) AS Abs_B,
F
FROM T
)
SELECT *
FROM CTE1
WHERE A = 780
Notice in the plan above there is no mention of CTE1. It just accesses the b...
Likelihood of collision using most significant bits of a UUID in Java
...
Why not use a standard V1 UUID instead?
– ShadowChaser
Feb 25 '14 at 17:07
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