JAVA-匿名对象类等

public abstract class Animal {
    public abstract void eat();
    public abstract void sleep();
}

public class Test {
    public static void main(String[] args) {

        Animal animal =  new Animal()
        {
            public void eat() {
                System.out.println("动物吃东西");
            }

            public void sleep() {
                System.out.println("动物睡觉");
            }
        };
        animal.eat();
        animal.sleep();
    }
}