To build your first Java AWS Lambda function, just create a simple class with an instance method that performs the following functions: Takes a String as an argument. Returns a String. Writes to the ...

The Functions Framework for Java uses Java and Maven (the mvn command), for building and deploying functions from source. However, it is also possible to build your functions using Gradle, as JAR ...

Function<Integer, String> functionClass = new FunctionClass(); System.out.println(functionClass.apply(2)); When you run the above code, the output would be four. Java Function interface example.