Recursive Character Search and Destroy

I receive a string, and I want to remove any 'a', 'b' and 'c' characters, in a recursive way.

How do I do this in C and Java?

Thanks

C or Java are _so_ the wrong tools for the job. And you're making design choices (e.g. recursion) prematurely. In UNIX ...

echo String | tr -d 'abc'