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Can I pass an array as arguments to a method with variable arguments in Java?
...tibility.
So you should just be able to prepend extraVar to args and call String.format(format, args).
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How to connect to Mysql Server inside VirtualBox Vagrant?
...here to comment), this command can be used in something like an Ansible script to automate granting root user permissions: mysql -e "create user 'root'@'10.0.2.2' identified by 'vagrant'; grant all privileges on *.* to 'root'@'10.0.2.2' with grant option; flush privileges;"
– K...
How do I trim leading/trailing whitespace in a standard way?
...ferably standard method of trimming leading and trailing whitespace from a string in C? I'd roll my own, but I would think this is a common problem with an equally common solution.
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ssh remote host identification has changed
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Use
ssh-keygen -R [hostname]
Example with an ip address/hostname would be:
ssh-keygen -R 168.9.9.2
This will update the offending of your host from the known_hosts. You can also provide the path of the known_hosts with -f flag.
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Simplest way to detect a mobile device in PHP
... a mobile browser in PHP.
The code detects a user based on the user-agent string by preg_match()ing words that are found in only mobile devices user-agent strings after hundreds of tests. It has 100% accuracy on all current mobile devices and I'm currently updating it to support more mobile devices...
How to convert a char to a String?
I have a char and I need a String . How do I convert from one to the other?
12 Answers
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How does the main() method work in C?
...t lists, is one of those features.
Programmers noticed that they can pass extra arguments to a function, and nothing bad happens with their given compiler.
This is the case if the calling conventions are such that:
The calling function cleans up the arguments.
The leftmost arguments are closer t...
Is it possible to ping a server from Javascript?
... on other parts of the source but you get the idea).
function Pinger_ping(ip, callback) {
if(!this.inUse) {
this.inUse = true;
this.callback = callback
this.ip = ip;
var _that = this;
this.img = new Image();
this.img.onload = function() {_that.good();};
this.img.o...
Difference between char* and const char*?
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char* is a mutable pointer to a mutable character/string.
const char* is a mutable pointer to an immutable character/string. You cannot change the contents of the location(s) this pointer points to. Also, compilers are required to give error messages when you try to do so. ...
What is a good Hash Function?
...l, with an order of magnitude more collisions than we want. In particular, strings that differ only in the last 4 bytes can collide easily. If you have a 30 character string, that differ in the last 4 bytes, after 28 bytes have been processes, the hashes differ only in the last 2 bytes. That means y...