编写抽象类Mammal(哺乳动物),拥有抽象方法void move()和void eat (); (2)维承Mammal类编写 Cheetah(猎豹)、Dolphin(海豚)、Bat(蝙蝠)三个类,分别为它们编写move()和eat()方法覆盖父类中的同名方法,方法被调用后在命令行中输出合适的内容。(如Bat的move()方法输出“I’m flying.”,eat()方法输出“I eat insect.”) (3)创建包含main方法的Test类,在main方法中创建专门用于存储Mammal对象的Arra
时间: 2024-02-07 14:02:17 浏览: 22
yList,并向其中添加Cheetah、Dolphin和Bat的实例。然后使用循环遍历数组,依次调用每个对象的move()和eat()方法。下面是代码实现:
Mammal抽象类:
```java
public abstract class Mammal {
public abstract void move();
public abstract void eat();
}
```
Cheetah类:
```java
public class Cheetah extends Mammal {
@Override
public void move() {
System.out.println("I'm running.");
}
@Override
public void eat() {
System.out.println("I eat meat.");
}
}
```
Dolphin类:
```java
public class Dolphin extends Mammal {
@Override
public void move() {
System.out.println("I'm swimming.");
}
@Override
public void eat() {
System.out.println("I eat fish.");
}
}
```
Bat类:
```java
public class Bat extends Mammal {
@Override
public void move() {
System.out.println("I'm flying.");
}
@Override
public void eat() {
System.out.println("I eat insect.");
}
}
```
Test类:
```java
import java.util.ArrayList;
public class Test {
public static void main(String[] args) {
ArrayList<Mammal> mammals = new ArrayList<>();
mammals.add(new Cheetah());
mammals.add(new Dolphin());
mammals.add(new Bat());
for (Mammal mammal : mammals) {
mammal.move();
mammal.eat();
}
}
}
```
输出结果:
```
I'm running.
I eat meat.
I'm swimming.
I eat fish.
I'm flying.
I eat insect.
```