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How to check if a file is a valid image file?
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excellent advice, now i just need to figure out what those numbers are. thanks :)
– Sujoy
May 20 '09 at 18:11
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How to sort by two fields in Java?
...;
return x1.compareTo(x2);
}});
}
List<Persons> is now sorted by name, then by age.
String.compareTo "Compares two strings lexicographically" - from the docs.
Collections.sort is a static method in the native Collections library. It does the actual sorting, you just need to...
java.lang.ClassNotFoundException: org.springframework.web.servlet.DispatcherServlet
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i removed it, and added the maven dependencies entry, and it works fine now.
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How to assign from a function which returns more than one value?
...t seems like this syntax is embedded into R base.
– knowah
Jun 3 '14 at 22:52
6
@G.Grothendieck I...
How to remove selected commit log entries from a Git repository while keeping their changes?
...t <SHA1-for-A>
# Redo the D commit re-using the commit message, but now on top of A
git commit -C <SHA1-for-D>
# Re-apply everything from the old D onwards onto this new place
git rebase --onto HEAD <SHA1-for-D> master
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What's default HTML/CSS link color?
...link - #FF0000 //red
that was a standard but heavily differs per browser now. (since Nielsen gave it up ;)
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Finding all possible permutations of a given string in python
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@pst: Hmm I'd tend to disagree. I know in Ada or Pascal that a cast is just a new type-view on the same bits. However at least from a C perspective, casting is an appropriate term whether or not you're changing the underlying structure of the data. It simply r...
How to insert element into arrays at specific position?
...n $array; // you can return $temp instead if you don't use class array
}
Now you can test the code using
//1
$result = insert(array(1,2,3,4,5),0, 0);
echo "<pre>";
echo "<br/>";
print_r($result);
echo "</pre>";
//2
$result = insert(array(1,2,3,4,5),2, "a");
echo "<pre>";
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Generating a random & unique 8 character string using MySQL
...no idea how many you could allocate before a collision (but it would be a known and constant value).
edit: This is now an old answer, but I saw it again with time on my hands, so, from observation...
Chance of all numbers = 2.35%
Chance of all letters = 0.05%
First collision when MD5(82945) = "7...
Smart way to truncate long strings
...px/15px verdana, arial;
margin: 2rem;
}
.truncate {
white-space: nowrap;
overflow: hidden;
text-overflow: ellipsis;
width: 30vw;
}
.truncate:before{
content: attr(data-longstring);
}
.truncate:hover::before {
content: attr(data-longstring);
width: auto;
height:...