when a Account field  Type is updated , then update Description from its related Opportunity i.e  created date is oldest  & if Description is not blank .

update Acc Description from its oldest  Opty's Description 

I am trying to figure out how to concatenate strings in SalesForce Apex code.  I do not see it anywhere in string methods and as far as I can tell, its not possible.  Am i crazy here?  Is something as simple as string concatenation not available in SalesForce?

 

Thanks