Example of pattern matching in java

useThing.java

public interface Animal {
    String getName();
    String getNoise();
    default String makeNoise() { return getName() + " made a noise: " + getNoise(); }
}

public static void useThing(Object thing) {
    if (thing instanceof Animal animalThing) {
        System.out.println("thing is an animal!! what kind?? " + animalThing.getName());
        System.out.println(animalThing.makeNoise());
    } else if (thing instanceof Integer intThing) {
        System.out.println("thing is an Integer! if you added 3 to it you would have: " + (intThing + 3));
    } else {
        System.out.println("i don't really know what that is...");
    }
}