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How to call base.base.method()?
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var ptr = typeof(Base).GetMethod("Say").MethodHandle.GetFunctionPointer();
var baseSay = (Action)Activator.CreateInstance(typeof(Action), this, ptr);
baseSay();
}
}
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Ways to iterate over a list in Java
...the iteration methods makes a copy of anything in the list. Changes to the internal state of element will always be seen in the internal state of the corresponding element on the list.
Essentially, there are only two ways to iterate over a list: by using an index or by using an iterator. The enhanc...
./configure : /bin/sh^M : bad interpreter [duplicate]
...mmand,
CentOS:
# yum install dos2unix*
# dos2unix filename.sh
dos2unix: converting file filename.sh to Unix format ...
Ubuntu / Debian:
# apt-get install dos2unix
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PHP prepend leading zero before single digit number, on-the-fly [duplicate]
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You can use sprintf: http://php.net/manual/en/function.sprintf.php
<?php
$num = 4;
$num_padded = sprintf("%02d", $num);
echo $num_padded; // returns 04
?>
It will only add the zero if it's less than the required number of character...
Bash script prints “Command Not Found” on empty lines
...bash if it is not /bin/bash
Try running:
dos2unix script.sh
That wil convert line endings, etc from Windows to unix format. i.e. it strips \r (CR) from line endings to change them from \r\n (CR+LF) to \n (LF).
More details about the dos2unix command (man page)
Another way to tell if your ...
Creating java date object from year,month,day
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Months are zero-based in Calendar. So 12 is interpreted as december + 1 month. Use
c.set(year, month - 1, day, 0, 0);
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How to disable phone number linking in Mobile Safari?
...<?xml-stylesheet> directive to generate the HTML page. Mobile Safari converts any long number in the original XML into a "tel:" link, even though the source isn't HTML (!).
– Mark Reinhold
Mar 13 '18 at 19:36
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Why do I get “a label can only be part of a statement and a declaration is not a statement” if I hav
... scope the way you would need to inside a block.
#include <stdio.h>
int main ()
{
printf("Hello ");
goto Cleanup;
Cleanup: ; //This is an empty statement.
char *str = "World\n";
printf("%s\n", str);
}
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Is there replacement for cat on Windows
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It converted my files into UTF-16, for some reason. -Encoding UTF8 didn't change anything.
– John Dvorak
May 10 '19 at 12:57
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Java 8 List into Map
...ey is NOT guaranteed to be unique for all elements in the list, you should convert it to a Map<String, List<Choice>> instead of a Map<String, Choice>
Map<String, List<Choice>> result =
choices.stream().collect(Collectors.groupingBy(Choice::getName));
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