Listing 1’s main() method sorts a pair of integer arrays via the java.util.Arrays class’s static void sort(int[] a) method, which appears in static method reference and equivalent lambda ...

The java.util.function.Consumer class has one non-default method named accept which takes a single object as its argument and has a void return type. java.util.function.Consumer<T> Consumer function ...

Java Supplier interface tutorial. As you can see, the code for the class that implements Java’s Supplier interface is fairly simple. The only requirements are the class declaration and the ...

Next, we will create another ,CompletableFuture that will thenApply a callback function to execute with the first function we configured: import java.util.concurrent.CompletableFuture; public ...