Combination lock design on multisim Help

Hello everyone i have started designing a 3 Combination lock on multisim using a series of D flip flops and gates. Im supposed to use a 2 position switch and and enter key to show it open and a reset key to reset the combinations. I currently ran into an issue of how i could use a yellow probe to stay on as long as the code is still currently being entered, for instance 2 correct combinations have been entered the last one hasn't. The next is how to make it so that when a wrong key is pressed in sequence with say 2 correct ones that it sendsasignal to the red probe meaning wrong code. i currently have it displaying a green probe when the correct keys are pressed but when there not the red probe or yellow probe just stays illuminated. Any input would help this is currently what i have designed "combinationlock"
Here is the instructions given, If you see anything i need to change to follow the guidelines then please feel free to input.
Im not looking for someone to do my project for me im looking for some helpful advice about what i have so far and how i should proceed. Thank you
Design project: Using gates, design a digital combination lock to open a safe using 3 bits for the combination only one combination of bits should open the safe while rejecting all others. Use an Enter key, a 2 position switch and a reset key to control the process. The lock generates an unlock signal when the complete key matches the internal conbination. An Error light is illuminated if the key does not match the combination. Type Up a report explaining your process including your circuit using multisim. The Circuit should work on multisim. Use 2 LEDS to show when the safe will open and when it will not
Attachments:
Combinationlock.ms13 ‏147 KB

The lock isn't meant to deter theft, it just adds a minor level of security to keep people from easily browsing your address records or switching songs/playlists without your permission. I can see using it if you hook your iPod up to speakers so others can listen (people you trust not to walk off with it), but you don't want them to fiddle with it.
A list of what you can and cannot do when the iPod Nano is locked can be found here:
iPod nano: How to use the Screen Lock
http://docs.info.apple.com/article.html?artnum=302255

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Can anyone please help me. I am doing a Java project and need to design a combination lock using 3 classes. The lock must use letters and only allow the user to make 3 attempts.
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no time for funny people mate.I've got plenty of time, and I would like to encourage others to write more funny shit.
i'm being serious.And don't call me Shirley?
I dont have a clue on java and we seriously need help.Help? Nah, you've figured out a fine way to go through life: pay other people to do the stuff that you should be doing for yourself. You'll be fine.
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You apparently aren't listening or don't understand English well enough to understand the responses you're getting.
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Date: Sat, 22 Aug 2009 06:37:29 -0600
From: [email protected]
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Subject: cs4 in design page setup help cm, mm, inches change
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Combination lock design on multisim Help

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