In this functional programming tutorial, we will work through a Java Supplier interface example. Java’s functional supplier interface can be used any time a function needs to generate a result without ...

Here is the functional Consumer interface example implemented using a somewhat verbose lambda expression: The functional Consumer interface is used extensively across the Java API, with a number of ...

If a lambda body throws an exception, the functional interface method’s throws clause must declare the same exception type or its supertype. Consider Listing 8. In this tutorial I’ve ...

In all three examples above, you can see that higher ... into other functions (in the Array API or otherwise) as functional interfaces. The provider functions (which consume the parameter ...