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

I think Durian's Errors class combines many of the pros of the various suggestions above.

• Wrap a throwing function to a standard Java 8 functional interface.
• Easily specify various policies for handling errors
• When wrapping a method that returns a value, there is an important distinction between specifying a default value or rethrowing a RuntimeException.
• Throwing versions of Java 8's functional interfaces
  • Similar to fge's answer
• Standard interfaces for throwing specific exceptions
  • Which addresses Zoltán's concern

To include Durian in your project, you can either:

• grab it from jcenter or maven central at com.diffplug.durian:durian:3.3.0
• or just copy paste just two small classes into your code: Throwing.java and Errors.java