grammaticality - Is this grammatical? "Each method has features in which context to use it."

Is this a grammatically correct sentence?

"Programming language has a four methods. Each method has features in which context to use it."

Answer

No, it is not grammatical. The antecedent of which seems to be features. If we separate the sentence into two clauses, we get Each method has features. In those features context to use it. That clearly makes no sense.