Wik is very incorrect.
semi formal, good for most situations:
(nice to meet you, i'm javan. i look forward to spending time with you.)
はじめまして、ジャバンです。よろしくお願いします。
hajimemashite, jaban desu. yoroshikuonegaishimasu
^よろしくお願いします is impossible to translate directly but you have to say it when meeting someone new at the end of your introduction, and not more than once to the same person.
very casual, with close friends (otherwise it's rude)
ども、ジャバンです。よろしく。
domo, jaban desu. yoroshiku