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How to convert Milliseconds to “X mins, x seconds” in Java?
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Based on @siddhadev's answer, I wrote a function which converts milliseconds to a formatted string:
/**
* Convert a millisecond duration to a string format
*
* @param millis A duration to convert to a string form
* @return A string of the form "X Days Y H...
What is boxing and unboxing and what are the trade offs?
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Boxing & unboxing is the process of converting a primitive value into an object oriented wrapper class (boxing), or converting a value from an object oriented wrapper class back to the primitive value (unboxing).
For example, in java, you may need to convert a...
How to convert a scala.List to a java.util.List?
How to convert Scala's scala.List into Java's java.util.List ?
9 Answers
9
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How do I convert a dictionary to a JSON String in C#?
I want to convert my Dictionary<int,List<int>> to JSON string. Does anyone know how to achieve this in C#?
13...
How to process SIGTERM signal gracefully?
...s-test.py:
#!/usr/bin/python
from time import sleep
import signal
import sys
def sigterm_handler(_signo, _stack_frame):
# Raises SystemExit(0):
sys.exit(0)
if sys.argv[1] == "handle_signal":
signal.signal(signal.SIGTERM, sigterm_handler)
try:
print "Hello"
i = 0
while T...
When should I use cross apply over inner join?
...ross apply. It might have other uses but I think this is the reason it was introduced. Without it table functions would not be usable in a lot of situations. technet.microsoft.com/en-us/library/ms175156.aspx
– MikeKulls
Aug 12 '11 at 0:38
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Bash command to sum a column of numbers [duplicate]
... time paste -sd+ file | bc
1448700364
real 1m36.960s
user 1m24.515s
sys 0m1.772s
$ time awk '{s+=$1}END{print s}' file
1448700364
real 0m45.476s
user 0m40.756s
sys 0m0.287s
share
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Way to read first few lines for pandas dataframe
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I think you can use the nrows parameter. From the docs:
nrows : int, default None
Number of rows of file to read. Useful for reading pieces of large files
which seems to work. Using one of the standard large test files (988504479 bytes, 5344499 lines):
In [1]: import pandas as pd...
Assignment inside lambda expression in Python
...ctic reasons. For example, we will be able to write the following:
import sys
say_hello = lambda: (
message := "Hello world",
sys.stdout.write(message + "\n")
)[-1]
say_hello()
In Python 2, it was possible to perform local assignments as a side effect of list comprehensions.
import sys
s...
How to convert ASCII code (0-255) to its corresponding character?
How can I convert, in Java, the ASCII code (which is an integer from [0, 255] range) to its corresponding ASCII character?
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