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Random URL without repetition

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Hey, I have so little java knowledge and I need to use it for my thesis.
I have three websites and I want to randomly generate them. First one works perfectly fine with

<script type="text/javascript">
function randomlinks(){
var myrandom=Math.round(Math.random()*2)
var links=new Array()


Once one of them is generated, I don't want it to repeat itself.
I have searched a lot, but I do not seem to get a clear answer or I simply do not understand so technical language.
Any help would be appreciated. Thanks in advanced.
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The solution would be to remove that link from your array after you've opened it. Take a look at the splice() method.

By the way, did you know that JavaScript and Java are two completely unrelated languages? I'm going to move this to the JavaScript forum.

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