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How to append text to an existing file in Java?
...t popular are Log4j and Logback.
Java 7+
If you just need to do this one time, the Files class makes this easy:
try {
Files.write(Paths.get("myfile.txt"), "the text".getBytes(), StandardOpenOption.APPEND);
}catch (IOException e) {
//exception handling left as an exercise for the reader
}
...
Git: How do I list only local branches?
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This answer has exactly the same time stamp as the accepted answer. Accepted answer must be ahead in millisecond part :)
– RBT
Aug 15 '17 at 1:27
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How to validate an email address in JavaScript
...hat everything is 100% perfect for two main reasons: 1. It would take more time than it would be worth to write the logic and 2. There will always be an edge case where bad data could get submitted. The reason we validate is to encourage proper data submission and prevent mistakes.
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log messages appearing twice with Python Logging
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In my case, they were appearing 6 times. I had suspected that because I've declared the same type of logger in 6 oop classes
– answerSeeker
Apr 10 '17 at 3:43
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How to reset index in a pandas dataframe? [duplicate]
... insert level_0, already exists while using df = df.reset_index() multiple times
– Tms91
Nov 17 '19 at 15:25
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How to format a UTC date as a `YYYY-MM-DD hh:mm:ss` string using NodeJS?
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Note that by removing the time zone, it now represents a different moment in time in every time zone with a different offset.
– RobG
Jun 7 '16 at 13:01
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What is the Java string pool and how is “s” different from new String(“s”)? [duplicate]
...e immutable. Interning strings
makes some string processing tasks
more time- or space-efficient at the
cost of requiring more time when the
string is created or interned. The
distinct values are stored in a string
intern pool.
Basically, a string intern pool allows a runtime to save me...
How to remove elements from a generic list while iterating over it?
...little test for performance and it turned out that RemoveAll() takes three times as much time as the backwards for loop. So I am definitely sticking with the loop, at least in sections where it matters.
– Crusha K. Rool
Nov 15 '16 at 1:40
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Remove characters except digits from string using Python?
...le.
Back to 2.*, the performance difference is impressive...:
$ python -mtimeit -s'import string; all=string.maketrans("", ""); nodig=all.translate(all, string.digits); x="aaa12333bb445bb54b5b52"' 'x.translate(all, nodig)'
1000000 loops, best of 3: 1.04 usec per loop
$ python -mtimeit -s'import re...
Check if a string contains a string in C++
...lgorithm is the slowest possible. My guess would be that it takes a lot of time to create those iterators.
The code that i used to time the whole thing is
#include <string>
#include <cstring>
#include <iostream>
#include <algorithm>
#include <random>
#include <chro...