A simple tool used for fast Exponentiation. Very useful if you are creating your own cryptograpgic methods.

A simple tool used for fast Exponentiation. Very useful if you are creating your own cryptograpgic methods.

Copy a file to a new location, optionally marking the file as a temporary file (to be deleted on application exit).

Note there are issues for temporary files - not all the parent directories that might be created are guaranteed to be deleted - only the immediate parent directory will be deleted on exit if created. Other higher-level directories will not be deleted, even if the file is marked as temporary.

From a tutorial on building an RSS SAX parser on my website:

full article can be found here

A GroovyClassLoader demonstration. The given domain is a german water flow meter system; I think, you shouldn't be able to understand the domain, but you should be able to understand, how to load a Groovy class in Java via a GroovyClassLoader.

If you only want to compare yyyy-mm-dd you can use the java.sql.Date class, the valueOf method does the trick. It's perfectly safe as the sql Date class is a subclass of the Date class.

Check out the docs here for more detail.

enjoy

This is a very convenient way to remove all doubles from a List in Java. The only prerequisite is that the elements in the list have proper equals and hashCode methods.

It work by using the constructor of a Set that takes a Collection as an argument.

I poured the snippet in a little program so can run it straight away.

This is a quick and easy method to generate a somewhat random password. This simply generates the MD5 hash for the integer returned by the time() function and then truncates it to the specific length.

Create a random password:


usage: CreatePasswd( 8,True,False)

Usage: cscript //nologo RandPass.vbs [password_length]|[?] [complexity] [uniqueness]

This script will generate a random password of X length. It will build the password from seed 'strings of increasing complexity.
1 - simple is the lower case alphabet, numbers 2-9 and !@#$%^&*() all randomly interspersed.
2 - complex is the same as the previous with the addition of UPPER case letters.
3 - insane is the same as the previous with the additional symbols of ,./?>;'[]}{\|~`:
The numbers 0 and 1 have been removed to avoid confusion with the letters O and L.

password_length should be a number between 4 and 127, although a limit of 14 is recommended for Win9x clients. Default is 7
complexity must be 1,2 or 3
uniqueness value of 0 will make each password character unique. A value of 1 [default] will allow repeated characters.

If you don't pass values at the command prompt, you will be prompted for each value.