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auto generate password

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  #1  
Old October 16th, 2002, 03:24 AM
peter83 peter83 is offline
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auto generate password
how to i generate a password that contains 11 chars including alphabets (Uppercase and lowercase) and numbers. However, there should not be "one", "o", "zero", "uppercase i" and "lowercase L" in the password .

pls help asap..
thanks..
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  #2  
Old October 16th, 2002, 12:19 PM
noslenj123 noslenj123 is offline
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Quote:
how do i generate a password that contains 11 chars including alphabets (Uppercase and lowercase) and numbers.
Well, I'm experienced in several other languages but I'm a newbie to Java. However I'm sure Java has a random() function of some kind that you could use. The following psuedo code could give you what you want:
PHP Code:
 validChars = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890';
for ( i=1; i<12; i++ ) {
    password = password + validChars[random(validChars.length())];
} 
Quote:
However, there should not be "one", "o", "zero", "uppercase i" and "lowercase L" in the password .
Not sure what you mean here.....
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  #3  
Old October 16th, 2002, 07:29 PM
peter83 peter83 is offline
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well, your method doesn't work..
any other ways??
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  #4  
Old October 16th, 2002, 11:04 PM
bricker42 bricker42 is offline
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Make
Code:
validChars[random(validChars.length())];

into
Code:
String.valueOf( validChars.charAt( Math.random() * validChars.length ) )
Last edited by bricker42 : October 16th, 2002 at 11:07 PM.
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  #5  
Old October 16th, 2002, 11:20 PM
peter83 peter83 is offline
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hi,

i tried the method but i got this error:

"Attempt to reference method length in class java.lang.String as an instance variable."
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  #6  
Old October 17th, 2002, 12:03 AM
bricker42 bricker42 is offline
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Sorry, it should be validChars.length()
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  #7  
Old October 17th, 2002, 07:25 PM
peter83 peter83 is offline
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now i get this error..

Quote:
Incompatible type for method. Explicit cast needed to convert double to int.


how do i solve it.???

Pls reply asap.. this is very important..
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  #8  
Old October 17th, 2002, 09:15 PM
noslenj123 noslenj123 is offline
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Ya see bricker42, this is why it's better to post psuedo code. Some characters simply want you to do their work FOR them. There is no indication that he has even tried. I'm done!
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  #9  
Old October 17th, 2002, 09:27 PM
peter83 peter83 is offline
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hey man... i did tried ok...
it just doesn't work...
can you not accuse others of things they did not do...
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  #10  
Old October 18th, 2002, 03:28 PM
noslenj123 noslenj123 is offline
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Quote:
hey man... i did tried ok...
Sorry to offend you. I looked through the posts and see no indication you tried. Generally you would post what you did try.
Quote:
it just doesn't work...
So we really don't know what it is that didn't work.
Quote:
can you not accuse others of things they did not do...
Then show us what you did.

Actually, even though I have only been looking at Java for a couple of weeks, I decided to turn the psuedo-code I gave into Java code. It took me about 15 minutes and I had the code working just fine. First run gave me 'w0z7k2TRowc', the second '7FvR7nk2ivk'.

Did you search a manual or book for "Random"? Otherwise known as RTFM. Better yet, did you search the internet for it? I did, and I didn't bug anybody to do it for me.
Quote:
Pls reply asap.. this is very important..
<soapbox>This is what bugs people. It's very important to who? You. And you only. No one needs to help you ASAP! They have better things to do. Like help people that are humble and appreciate it.</soapbox>

Good luck!
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