Format numbers
Snippet Menu
ranking 
|
date 
|
member
|
date
|
member
6
Sun. Jul. 23rd, 2006 5:39 PM
Method for get n random number's
6
A simple tool used for fast Exponentiation. Very useful if you are creating your own cryptograpgic methods.
6
Convert
java.awt.Canvas to java.awt.image.BufferedImage or java.awt.image.Image
java.awt.Canvas to java.awt.image.BufferedImage or java.awt.image.Image
6
boost::format gives you the ablility to safely use printf like formatting as well as positional format specifiers ala .NET.
6
This is a quick and easy class that will generate MD5 hashes from strings. I originally wrote it to insert into my Oracle database so I could generate MD5 hases for passwords from PL/SQL.
Example
String md5Hash = stringMD5("my password");
Example
String md5Hash = stringMD5("my password");
6
Another way to generate a unique ID.
7
The modus operandi for this is similar to that taken by PHP's implementation of such functions. It's comparitively memory-intensive, but is much faster than running a whole bunch of tests.
Basically, you set a mask -- an array of 256 null bytes -- and set those that correspond to characters you wish to trim. Then, rather than having to test if a character is in the set of characters to trim(O(n), or linear time on *ws), you just test once (O(1), or unit time) to see if the byte in question is set.
And of course, to trim(), you just wrap trim() around both ltrim() and rtrim().
One point of caution: these functions trim in place, so copy strings before trimming them. (Of course, if you usually want access to both pre- and post-trimmed strings, you could always make these malloc() a new string and return a pointer to it . . . )
Basically, you set a mask -- an array of 256 null bytes -- and set those that correspond to characters you wish to trim. Then, rather than having to test if a character is in the set of characters to trim(O(n), or linear time on *ws), you just test once (O(1), or unit time) to see if the byte in question is set.
And of course, to trim(), you just wrap trim() around both ltrim() and rtrim().
One point of caution: these functions trim in place, so copy strings before trimming them. (Of course, if you usually want access to both pre- and post-trimmed strings, you could always make these malloc() a new string and return a pointer to it . . . )
7
Turns any string backwards. If you input "Test" it gives out "tseT". Hope it's useful.
The snippet shows how to use it.
The snippet shows how to use it.
7
This class uses reflection to locate option setters. Client class must contains methods setFile (to receive file names from the command line) and setOption### (to receive option ###).
(See also adapter-based implementation)
(See also adapter-based implementation)
