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Java 8 Stream and operation on arrays
...tle more difficult because I can't think of a way to get the value AND the index at the same time as a Stream operation. This means you probably have to stream over the indexes of the array.
//in this example a[] and b[] are same length
int[] a = ...
int[] b = ...
int[] result = new int[a.length]...
How to base64 encode image in linux bash / shell
...d DSC_0251.base64 > DSC_0251.JPG
See: http://www.greywyvern.com/code/php/binary2base64
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Find out what process registered a global hotkey? (Windows API)
...d: http://web.archive.org/web/*/tds.diamondcs.com.au/dse/detection/hotkeys.php )
– Aaron Thoma
Jul 2 '15 at 17:15
...
How using try catch for exception handling is best practice
...e and throw a new, more specific exception.
int GetInt(int[] array, int index)
{
try
{
return array[index];
}
catch(System.IndexOutOfRangeException e)
{
throw new System.ArgumentOutOfRangeException(
"Parameter index is out of range.");
}
}
Yo...
Find the max of two or more columns with pandas
...this difference roughly remains constant, and is due to internal overhead (indexing alignment, handling NaNs, etc).
The graph was generated using perfplot. Benchmarking code, for reference:
import pandas as pd
import perfplot
np.random.seed(0)
df_ = pd.DataFrame(np.random.randn(5, 1000))
perfplo...
How to append text to an existing file in Java?
...r }catch(IOException ex){ ex.printStackTrace(); }
– php_coder_3809625
Aug 18 '16 at 12:12
...
Relational Database Design Patterns? [closed]
...a: Dimension and Fact, OLAP design.
Fully normalized OLTP design.
Multiple indexed search columns in a dimension.
"Lookup table" that contains PK, description and code value(s) used by one or more applications. Why have code? I don't know, but when they have to be used, this is a way to manage th...
How do I get the YouTube video ID from a URL?
... = window.location.search.split('v=')[1];
var ampersandPosition = video_id.indexOf('&');
if(ampersandPosition != -1) {
video_id = video_id.substring(0, ampersandPosition);
}
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How to get image height and width using java?
...
@php_coder_3809625 the log is in the iterator, so it could be the case that one ImageReader fails, but a subsequent succeeds. If they all fail, then an IOException is raised.
– Andrew Taylor
...
How do I bind a WPF DataGrid to a variable number of columns?
...on.Move)
{
dataGrid.Columns.Move(ne.OldStartingIndex, ne.NewStartingIndex);
}
else if (ne.Action == NotifyCollectionChangedAction.Remove)
{
foreach (DataGridColumn column in ne.OldItems)
{
...