Convert
java.awt.Canvas to java.awt.image.BufferedImage or java.awt.image.Image

Snippet for display one frame in full screen mode.

Convert java.awt.Canvas to java.awt.image.BufferedImage

Convert InputStream to byte[]

Change logs

-> length calculated from the array
-> charachters will not be repeated in the password

If a visitor comes to your site from a search engine such as Google or Yahoo, this function will highlight the keywords in a given text the user used for his search.

Recursively delete a directory, emptying all contents.

Date Parse

File CheckSum

Fixed the regular expression to check for more strict requirements.