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Take a char input from the Scanner
...er("") to set the delimiter to an empty string. This will cause next() to tokenize into strings that are exactly one character long. So then you can repeatedly call next().charAt(0) to iterate the characters. You can then set the delimiter to its original value and resume scanning in the normal w...
What is SQL injection? [duplicate]
...ta or even changing data that they shouldn't be allowed to do.
Example in PHP:
$password = $_POST['password'];
$id = $_POST['id'];
$sql = "UPDATE Accounts SET PASSWORD = '$password' WHERE account_id = $id";
Now suppose the attacker sets the POST request parameters to "password=xyzzy" and "id=acc...
Padding characters in printf
...E has spaces unless they are already escaped. You'll get one line with two tokens each and then [UP] for every two space-separated tokens in your variable and then a single line at the end with your line text minus the total length of your input string. So be careful, since this could lead to intere...
iOS: How to get a proper Month name from a number?
...nt monthNumber = 11; //November
NSDateFormatter *df = [[[NSDateFormatter alloc] init] autorelease];
NSString *monthName = [[df monthSymbols] objectAtIndex:(monthNumber-1)];
Note that you'll need to subtract 1 from your 1..12 monthNumber since monthSymbols is zero-based.
...
Advantages of Binary Search Trees over Hash Tables
... instance, if a hash function has a range R(h) = 0...100, then you need to allocate an array of 100 (pointers-to) elements, even if you are just hashing 20 elements. If you were to use a binary search tree to store the same information, you would only allocate as much space as you needed, as well as...
Best practices for in-app database migration for Sqlite
...ng stringWithFormat:@"userdata.sqlite"];
_database = [[FMDatabase alloc] initWithPath:[documentsDir stringByAppendingPathComponent:databaseName]];
_database.logsErrors = YES;
if (![_database openWithFlags:SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE | SQLITE_OPEN_FILEPROTECTI...
Getting the last revision number in SVN?
Using PHP, Perl, or Python (preferably PHP), I need a way to query an SVN database and find out the last revision number sent to SVN. I don't need anything other than that. It needs to be non-intensive (so I do it every 5 minutes as a cron job; SVN's performance should not be affected).
...
PHP Timestamp into DateTime
...romFormat('U', $timeStamp);
Where 'U' means Unix epoch. See docs: http://php.net/manual/en/datetime.createfromformat.php
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Block Comments in Clojure
...t. For example, (comment "print("/foo")") will die with the error Invalid token: /foo.
– John Wiseman
May 12 '17 at 20:50
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Getting name of the class from an instance
...assname in Swift you can use reflect to get information about object.
let tokens = split(reflect(self).summary, { $0 == "." })
if let typeName = tokens.last {
println(typeName)
}
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