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java: (String[])List.toArray() gives ClassCastException
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Please! Format your code! Select all of it at press "ctrl + k", or add " ` " before the first letter of code and at the last one another one. You can also select "{}" in the help at the top when writing the answer!
– M.K
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How to allow remote connection to mysql
...SQL and noticed there were multiple root users with different passwords.
select user, host, password from mysql.user;
So in MySQL I set all the passwords for root again and I could finally log in remotely as root.
use mysql;
update user set password=PASSWORD('NEWPASSWORD') where User='root';
fl...
PSQLException: current transaction is aborted, commands ignored until end of transaction block
...t = connection.createStatement();
statement.executeQuery("select * from moobar");
//This SQL is correctly formed, yet it throws the
//'transaction is aborted' SQL Exception, why? Because:
//A. you were in a transaction.
//B. You ran a SQL stateme...
What is the difference between trie and radix trie data structures?
...E is faster than Radix tree? Because in TRIE if you wan to search the next char you need to see the ith index in the child array of the current node but in radix tree you need search for all the child nodes sequentially. See the implementation code.google.com/p/radixtree/source/browse/trunk/RadixTre...
Android gradle: buildtoolsVersion vs compileSdkVersion
...n? I remember that I read somewhere that the latest build tools version is selected automatically. I tried removing buildToolsVersion, but Android Studio is not happy with it.
– Hong
Apr 25 '15 at 1:39
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What's the difference between OpenID and OAuth?
... service. However, since OAuth does not support discovery, it requires pre-selecting and hard-coding the providers you decide to use. A user visiting your site cannot use any identifier, only those pre-selected by you. Also, OAuth does not have a concept of identity so using it for login means eithe...
AngularJS - how to get an ngRepeat filtered result reference
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Check this answer:
Selecting and accessing items in ng-repeat
<li ng-repeat="item in ..." ng-click="select_item(item)">
share
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improv...
Repeat String - Javascript
...y. Instead of creating an array, filling it, and joining it with an empty char, just create an array of the proper length, and join it with your desired string. Same result, less process!
String.prototype.repeat = function( num )
{
return new Array( num + 1 ).join( this );
}
alert( "string t...
Why doesn't Dictionary have AddRange?
...ined =
dict1.Union(dict2)
.GroupBy(kvp => kvp.Key)
.Select(grp => grp.First())
.ToDictionary(kvp => kvp.Key, kvp => kvp.Value);
The main trick when combining dictionaries is dealing with the duplicate keys. In the code above it's the part .Select(grp => g...
Is there a way to create multiline comments in Python?
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In any case, your text editor should also be able to easily comment-out a selected region (by placing a # in front of each line individually). If not, switch to a text editor that does.
Programming in Python without certain text editing features can be a painful experience. Finding the right edito...