Java8语言能力-2

/** * Created by Shusheng Shi on 2017/5/1. */interface Fly {    default void takeOff(){        System.out.println("Fly::takeOff");    }    default void turn(){        System.out.println("Fly::turn");    }    default void cruise(){        System.out.println("Fly::cruise");    }    default void land(){        System.out.println("Fly::land");    }}interface FastFly extends Fly {    default void tackOff() {        System.out.println("FastFly::takeOff");    }}class Vehicle {    public void land() {        System.out.println("Vehicel:land");    }}interface Sail {    default void cruise() {        System.out.println("Sail:cruise");    }}class SeaPlane extends Vehicle implements FastFly {    public void cruise() {        System.out.println("SeaPlane;cruise");        FastFly.super.cruise();    }}public class Sample {    public void use() {        SeaPlane seaPlane = new SeaPlane();        seaPlane.tackOff();        seaPlane.turn();        seaPlane.cruise();        seaPlane.land();    }    public static void main(String[] args) {        new Sample().use();    }}

输出

• FastFly::takeOff
• Fly::turn
• SeaPlane::cruise
• Fly::cruise
• Vehicel:land
• FastFly::takeOff