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How to save a BufferedImage as a File
...of the method is like this:
public static boolean write(RenderedImage im, String formatName, File output) throws IOException
Here im is the RenderedImage to be written, formatName is the String containing the informal name of the format (e.g. png) and output is the file object to be written to. A...
Graphviz: How to go from .dot to a graph?
...neato and twopi. If graphiz isn't in your path, figure out where it is installed and run it from there.
You can change the output format by varying the value after -T and choosing an appropriate filename extension after -o.
If you're using windows, check out the installed tool called GVEdit, it ma...
How can I analyze Python code to identify problematic areas?
...8 and a bunch of plugins for regular checks and pre-commit hook. I'd actually recommend https://flakehell.readthedocs.io/config.html these days though, as it's execution model is much more robust and configurable.
– DylanYoung
Jul 7 at 18:39
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How to insert a text at the beginning of a file?
...dd a line at the beginning of a file, you need to add \n at the end of the string in the best solution above.
The best solution will add the string, but with the string, it will not add a line at the end of a file.
sed -i '1s/^/your text\n/' file
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How do you find the sum of all the numbers in an array in Java?
...3
Finally, it can take an array of type T. So you can per example have a String which contains numbers as an input and if you want to sum them just do :
int sum = Arrays.stream("1 2 3 4".split("\\s+")).mapToInt(Integer::parseInt).sum();
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Exporting APK from eclipse (ADT) silently crashes
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Disable Project/Build Automatically when you are exporting
I think is a problem of Eclipse unable to detect the Android command is still working or something similar.
Of course there is ever the option of APK generation using Ant outside Eclipse you can ...
Use of “this” keyword in formal parameters for static methods in C#
...above has a
"this" keyword before the first
parameter argument of type string.
This tells the compiler that this
particular Extension Method should be
added to objects of type "string".
Within the IsValidEmailAddress()
method implementation I can then
access all of the public
pro...
Click button copy to clipboard using jQuery
...ard in most browsers because most browsers have the ability to programmatically copy a selection of text to the clipboard using document.execCommand("copy") that works off a selection.
As with some other actions in a browser (like opening a new window), the copy to clipboard can only be done via a ...
How to find the last field using 'cut'
...,baz,qux
last=${data##*,}
See BashFAQ #100 for an introduction to native string manipulation in bash.
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How to use NSCache
Can someone give an example on how to use NSCache to cache a string?
Or anyone has a link to a good explanation? I can't seem to find any..
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