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Very simple log4j2 XML configuration file using Console and File appender
I'd like a very simple XML configuration file with a console and a file appender using log4j2.
4 Answers
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Python __call__ special method practical example
... I can use this special method, because one can simply create a new method and perform the same operation done in __call__ method and instead of calling the instance, you can call the method.
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Flatten nested dictionaries, compressing keys
...iterating the dict by key/value, creating new keys for your new dictionary and creating the dictionary at final step.
import collections
def flatten(d, parent_key='', sep='_'):
items = []
for k, v in d.items():
new_key = parent_key + sep + k if parent_key else k
if isinstan...
Format Float to n decimal places
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You may also pass the float value, and use:
String.format("%.2f", floatValue);
Documentation
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What is the difference between print and puts?
For example in this line of code I wrote, print and puts produce different results.
6 Answers
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Advantages of Binary Search Trees over Hash Tables
...ast two additional pointers per element (three if using a parent pointer), and array-based BST's can waste a lot of memory for unfilled portions of the tree.
– Solaraeus
Jul 11 '12 at 22:28
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How do you count the lines of code in a Visual Studio solution?
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Ultimate and Premium, I think
– Stefan Dragnev
Aug 29 '11 at 16:42
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How To Set Up GUI On Amazon EC2 Ubuntu server
I'm using an amazon Ubuntu EC2 instance which is only has a command line interface. I want to setup UI for that server to access using remote desktop tools. Is there any way to apply GUI to the EC2 instance?
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Listing each branch and its last revision's date in Git
I need to delete old and unmaintained branches from our remote repository. I'm trying to find a way with which to list the remote branches by their last modified date, and I can't.
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Bash syntax error: unexpected end of file
... fi; will not... notice the little semi-colons at the end, ie: after .bash and fi.
– Emmanuel Mahuni
Aug 27 '18 at 7:51
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