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How can I initialize an ArrayList with all zeroes in Java?
... the initial number of elements in the list).
To initialize an list with 60 zeros you do:
List<Integer> list = new ArrayList<Integer>(Collections.nCopies(60, 0));
If you want to create a list with 60 different objects, you could use the Stream API with a Supplier as follows:
List&...
How to print a percentage value in python?
...supports a percentage floating point precision type:
>>> print "{0:.0%}".format(1./3)
33%
If you don't want integer division, you can import Python3's division from __future__:
>>> from __future__ import division
>>> 1 / 3
0.3333333333333333
# The above 33% example wo...
How to draw polygons on an HTML5 canvas?
...lineTo (live demo):
var ctx = canvas.getContext('2d');
ctx.fillStyle = '#f00';
ctx.beginPath();
ctx.moveTo(0, 0);
ctx.lineTo(100,50);
ctx.lineTo(50, 100);
ctx.lineTo(0, 90);
ctx.closePath();
ctx.fill();
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Is there a version of JavaScript's String.indexOf() that allows for regular expressions?
...
130
Combining a few of the approaches already mentioned (the indexOf is obviously rather simple), I ...
PHP function to make slug (URL string)
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edited Jul 17 '18 at 20:04
leoap
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answered Ju...
Instance attribute attribute_name defined outside __init__
...
170
The idea behind this message is for the sake of readability. We expect to find all the attribute...
How to navigate through a vector using iterators? (C++)
...tor to a vector of strings
int n = 3; // nth element to be found.
int i = 0; // counter.
// now start at from the beginning
// and keep iterating over the element till you find
// nth element...or reach the end of vector.
for(it = myvector.begin(); it != myvector.end(); it++,i++ ) {
// fou...
MySQL show current connection info
...ther useful functions can be found here: http://dev.mysql.com/doc/refman/5.0/en/information-functions.html
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Get all git commits since last tag
...ndows you could do
for /f "delims=" %a in ('git describe --tags --abbrev^=0') do @set latesttag=%a
git log %latesttag%..HEAD --oneline
and on linux / git bash / windows bash
git log $(git describe --tags --abbrev=0)..HEAD --oneline
Also, if you have a case where you know a tag in history and w...
Code Golf: Collatz Conjecture
Inspired by http://xkcd.com/710/ here is a code golf for it.
70 Answers
70
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