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How can we match a^n b^n with Java regex?
...finalized pattern, with additional test cases, including one that's 10,000 characters long:
$tests = array(
'aaa', 'aaab', 'aaaxb', 'xaaab', 'b', 'abbb', 'aabb', 'aaabbbbb', 'aaaaabbb',
'', 'ab', 'abb', 'aab', 'aaaabb', 'aaabbb', 'bbbaaa', 'ababab', 'abc',
str_repeat('a', 5000).str_repeat('b',...
What is __stdcall?
...ll Scene::ExecuteCommand(void* command)
{
return system(static_cast<char*>(command));
}
Count number of occurrences of a given substring in a string
...
s = 'sub1 sub2 sub3'
s.split().index('sub2')
>>> 1
You mean the char-position of the sub-string in the string:
s.find('sub2')
>>> 5
You mean the (non-overlapping) counts of appearance of a su-bstring:
s.count('sub2')
>>> 1
s.count('sub')
>>> 3
...
Deprecated Java HttpClient - How hard can it be?
...ringBuilder();
int cp;
try {
while((cp=rd.read())!=-1){
sb.append((char)cp);
}
catch(Exception e){
}
String json=sb.toString();
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fo...
Extract month and year from a zoo::yearmon object
...an extract the date parts as required:
> format(date1, "%b") ## Month, char, abbreviated
[1] "Mar"
> format(date1, "%Y") ## Year with century
[1] "2012"
> format(date1, "%m") ## numeric month
[1] "03"
These are returned as characters. Where appropriate, wrap in as.numeric() if you want t...
Create an array with same element repeated multiple times
...','a','a','a'] (5 times)
Update (01/06/2018):
Now you can have a set of characters repeating.
new Array(5).fill('a'); // give the same result as above;
// or
Array.from({ length: 5 }).fill('a')
Note: Check more about fill(...) and from(...) for compatibility and browser support.
Update (05/11...
jQuery get input value after keypress
...
This is because keypress events are fired before the new character is added to the value of the element (so the first keypress event is fired before the first character is added, while the value is still empty). You should use keyup instead, which is fired after the character has b...
jQuery removeClass wildcard
... answered Oct 20 '16 at 15:22
Charly GuiraoCharly Guirao
27122 silver badges77 bronze badges
...
Clear android application user data
....
So, run su first.
Here is the sample code:
private static final String CHARSET_NAME = "UTF-8";
String cmd = "pm clear com.android.browser";
ProcessBuilder pb = new ProcessBuilder().redirectErrorStream(true).command("su");
Process p = pb.start();
// We must handle the result stream in another T...
Only get hash value using md5sum (without filename)
...ssed by just the name without the [0] index, ie, $md5 contains only the 32 chars of the md5sum.
md5=($(md5sum file))
echo $md5
# 53c8fdfcbb60cf8e1a1ee90601cc8fe2
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