Obtaining OAuth2.0 access token for Facebook application

I have an application on Facebook with the API key, application secret etc....

I'm trying the use the Facebook API from a java application and it's telling me that it开发者_Python百科 requires an OAuth2.0 access token. I tried googling about but I'm a bit lost. From where could I get this?

Thank a lot :) Krt_Malta

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See:

Facebook Graph API — getting access tokens