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What is the convention for word separator in Java package names?
...ample, com.example.deepspace, not com.example.deepSpace or com.example.deep_space.
— Google Java Style Guide: 5.2 Rules by identifier type: 5.2.1 Package names.
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How to find and return a duplicate value in array
...rocess huge data set.
Looking for faster solution? Here you go!
def find_one_using_hash_map(array)
map = {}
dup = nil
array.each do |v|
map[v] = (map[v] || 0 ) + 1
if map[v] > 1
dup = v
break
end
end
return dup
end
It's linear, O(n), but now needs to manag...
Find nearest latitude/longitude with an SQL query
...serve as the primary key.
CREATE TABLE `markers` (
`id` INT NOT NULL AUTO_INCREMENT PRIMARY KEY ,
`name` VARCHAR( 60 ) NOT NULL ,
`address` VARCHAR( 80 ) NOT NULL ,
`lat` FLOAT( 10, 6 ) NOT NULL ,
`lng` FLOAT( 10, 6 ) NOT NULL
) ENGINE = MYISAM ;
Populating the Table
After creating the ta...
Why the switch statement cannot be applied on strings?
...er the string if you are using a predetermined set of strings:
enum string_code {
eFred,
eBarney,
eWilma,
eBetty,
...
};
string_code hashit (std::string const& inString) {
if (inString == "Fred") return eFred;
if (inString == "Barney") return eBarney;
...
}
voi...
Default implementation for Object.GetHashCode()
...ect* obj) {
CONTRACTL
{
THROWS;
DISABLED(GC_NOTRIGGER);
INJECT_FAULT(FCThrow(kOutOfMemoryException););
MODE_COOPERATIVE;
SO_TOLERANT;
}
CONTRACTL_END;
VALIDATEOBJECTREF(obj);
DWORD idx = 0;
if (obj == 0) ...
Booleans, conditional operators and autoboxing
...a.lang.Exception;
descriptor: ([Ljava/lang/String;)V
flags: ACC_PUBLIC, ACC_STATIC
Code:
stack=2, locals=2, args_size=1
0: invokestatic #2 // Method returnsNull:()Ljava/lang/Boolean;
3: invokevirtual #3 // Method java...
Getting individual colors from a color map in matplotlib
...call the cmap object you have.
import matplotlib
cmap = matplotlib.cm.get_cmap('Spectral')
rgba = cmap(0.5)
print(rgba) # (0.99807766255210428, 0.99923106502084169, 0.74602077638401709, 1.0)
For values outside of the range [0.0, 1.0] it will return the under and over colour (respectively). This...
Javascript: Extend a Function
...ook like this:
function init(){
doSomething();
}
//anytime later
var old_init = init;
init = function() {
old_init.apply(this, arguments);
doSomethingHereToo();
};
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With arrays, why is it the case that a[5] == 5[a]?
...ould make some situations associative which presently aren't, e.g. 3U+(UINT_MAX-2L) would equal (3U+UINT_MAX)-2. What would be best, though, is for the language to have add new distinct types for promotable integers and "wrapping" algebraic rings, so that adding 2 to a ring16_t which holds 65535 wo...
How do I allow HTTPS for Apache on localhost?
...nabled - there should be no hash at the start of this line:
LoadModule ssl_module modules/mod_ssl.so
Some Apache installations place the SSL config in a separate file. If so, ensure that the SSL conf file is being included. In my case I had to uncomment this line:
Include conf/extra/httpd-ssl....