(1)创建动物类animal
具有属性体重
具有方法移动(move)和睡觉(sleep)
移动时输出“animal moving”
睡觉上输出“animal sleepping”
publicclassAnimal {
intweight;
publicvoidmove(){
System.out.println("animal moving");
}
publicvoidsleep(){
System.out.println("animal slepping");
}
}
(2)为动物类创建子类鱼类fish、鸟类bird
鱼类移动时输出“swimming”
鸟类移动时输出“flying”
publicclassFish extendsAnimal{
publicvoidmove(){
System.out.println("swimming");
}
}
publicclassBird extendsAnimal{
publicvoidmove(){
System.out.println("flying");
}
}
(3)请创建一只动物 aniamala，动物初始化为鸟类
(4)创建一条鱼fishb
(5)aniamala移动后睡觉，fishb睡觉后移动
publicstaticvoidmain(String agrs[]) {
Animal animala=newBird();
animala.move();
animala.sleep();
Animal fishb=newFish();
fishb.sleep();
fishb.move();
}
