User Password I didn't even know of [duplicate]

Posted by KiriharaAkaya on Ask Ubuntu See other posts from Ask Ubuntu or by KiriharaAkaya
Published on 2013-10-20T21:31:23Z Indexed on 2013/10/20 22:11 UTC
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virtualbox

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password

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jdk

This question already has an answer here:

How do I reset a lost administrative password? 13 answers

I'm a new user of Ubuntu and I installed it on my computer using Virtual Box. I've been trying to install Java JDK for the past two hours without any success because when I try to do so, Terminal asks for my password, which I don't even remember creating.

Can someone please help and tell me how am I suppose to change the password in order to install JDK? It will be very much appreciated, thank you.

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