Java 8 Lambda function that throws exception?

Question

I know how to create a reference to a method that has a String parameter and returns an int, it\'s:

Function         


        

Answer 1

If you don't mind to use a 3rd party lib (Vavr) you could write

CheckedFunction1 f = this::myMethod;

It also has the so-called Try monad which handles errors:

Try(() -> f.apply("test")) // results in a Success(Integer) or Failure(Throwable)
        .map(i -> ...) // only executed on Success
        ...

Please read more here.

Disclaimer: I'm the creator of Vavr.