-
4 Today
Darks' Grateful Dead Tab
Add FeedOne of my pursuits is to try and play guitar like Uncle Jerry. If that's something that interests you, maybe this stuff will save you some time!
-
4 Today
APCS Java
Add FeedOOP Java for the AP CompSci A Test Starting Code: import java.util.Scanner; /** * Simple Polyalphabetic Cryptography * * @Chris Thiel * @28 Feb 2009 */ public class VignereCipherStartingCode { private static final String alphabet="ABCDEFGHIJKLMNOPQRSTUVWXYZ"; private static int nextChar(String k, int i){ i=i%k.length(); String letter=k.substring(i,i+1); return alphabet.indexOf(letter); } public static String encode (String m, String k){ String result=""; for (int i=0; i<m.length(); i++){ int offset=nextChar(k, i); String letter = m.substring(i,i+1); int newLetterIndex= alphabet.indexOf(letter)+offset; newLetterIndex=newLetterIndex % 26; result+=alphabet.substring( newLetterIndex, newLetterIndex+1); } return result; } public static String decode (String m, String k){ String result=""; return result; } public static void main(String[] args) { Scanner kb=new Scanner(System.in); System.out.print("Type a key: "); String key=kb.nextLine(); key=key.toUpperCase(); key=key.replace(" ","");//omit spaces System.out.print("Type a message: "); String message=kb.nextLine(); message=message.toUpperCase(); message=message.replace(" ",""); System.out.println("Using the key \""+key+"\" on \""+message+"\":"); String codedMessage=encode(message,key); System.out.println("Coded="+codedMessage); System.out.println("Decoded="+decode(codedMessage,key)); } } * 8 points: Complete the decode method so it can decipher the Vignere Cipher * 9 points: Adapt this so it can do a Progressive Polyalphabetic Cipher rather than a key * 10 points: Adapt the CarTalk Employee Applet's graphic user interface so that you can type a message in one text area, press a button and it shows the encoded text (using the Progressive Cipher), press another button and it shows the decoded text. * 11 points: Add a "key field" to the Applet, and use the Vignere Cipher, working in a similiar fashion as the 10 point version
-
4 Today
Cato Institute Weekly Video
Add FeedCato Weekly Video presents a variety of speakers, interviews, and events at the Cato Institute. The wealth of Cato's multimedia content is carefully selected and edited to portray the most pivotal issues in a concise and engaging way, inviting viewers to rethink their assumptions about liberty and the proper role of government.
-
3 Today
ScreenCastsOnline: Free Mac Video Tutorials
Add FeedA free video podcast which publishes weekly video tutorials demonstrating how to get the most from your Mac and the Internet.
-
3 Today
Scam School (HD)
Add FeedIf Harvard offered a PhD in deceit, this would be it. Award-winning magician Brian Brushwood takes viewers on an inside tour of bar tricks, street cons, and scams. If you watch carefully, you'll never have to pay for a drink again!
-
3 Today
-
3 Today
El Podcast Phocaccia
Add FeedEl Podcast de Fotografia gratis en tu idioma. Este podcast trata diversos temas acerca de la fotografía, incluyendo tips técnicos y estéticos, entrevistas, opinion y noticias.
-
3 Today
The Business Success Factory Podcast
Add FeedThe Business Success Factory: Nicola Cairncross brings you everything you need to know to become a successful entrepreneur and business owner
-
2 Today
WDR Quarks & Co
Add FeedDie Sendereihe Quarks & Co ist das Wissenschaftsmagazin des WDR-Fernsehens. Quarks & Co erscheint alle 14 Tage neu. 45 Minuten lang konzentriert sich Quarks & Co auf ein naturwissenschaftliches Thema, das in einer Fülle von Facetten und aus den verschiedensten Blickwinkeln beleuchtet wird. Ihr besonderes Augenmerk legen die Macher darauf, Wissenschaft unkompliziert zu vermitteln.
-
2 Today
TED Theme: How the Mind Works
Add FeedAt a conference about ideas, it’s important to step back and consider the engine that creates them: the human mind. How exactly does the brain -- a three-pound snarl of electrochemically frantic nervous tissue -- create inspired inventions, the feeling of hunger, the experience of beauty, or the sense of self -- and how reliable is it? Dan Dennett contemplates the mind as an ecosystem in which a new class of entities -- memes -- can compete, coexist, reproduce and flourish, and asks what sorts of nefarious things these entities might be up to. An enthusiastic Dan Gilbert presents his new research on the peculiar, counterintuitive -- and perhaps a smidge deflating -- secret to happiness. And Jeff Hawkins explains why a napkin-sized sheaf of cellular matter, wrinkled into a ball, will fundamentally change the direction of the computer industry.
