请将下列关键字填写到适当的位置中。newextendsimplementsstaticsuperpublicabstractthisimportpackage(1)Fruits;//声明包语句(2)java.util.*;abstractclassFruit//定义抽象类Fruit{D...

请将下列关键字填写到适当的位置中。

new extends implements static super

public abstract this import package

(1) Fruits;//声明包语句

(2) java.util.*;

abstract class Fruit //定义抽象类Fruit

{

Date produceDate;

double weight;

public Fruit(double weight) {

produceDate = (3) Date();//将produceDate设定为系统当前时间

(4) .weight = weight;//为数据成员weight赋初值

}

public (5) String getInfo();//定义抽象方法

}

interface Edible//定义接口Edible

{final int Edible_HOT = 1;

final int Edible_Cool = 2;

void howToEat(int EatMode);

}

//Apple类是Fruit的派生类并实现Edible接口

class Apple (6) Fruit (7) Edible

{

(8) int count = 0;//count负责记录Fruit对象的数量

String color;

public Apple(double weight,String c)

{

(9) (weight);//调用父类的构造函数

color = c;

count++;

}

(10) String getInfo() //重写抽象类中的抽象方法

{

return "produceDate=" + produceDate + " weight=" + weight + " color=" + color;

}

public void howToEat(int mode) //重写接口中的抽象方法

{

if(mode == Edible.Edible_HOT)

System.out.println("Make apple pine!");

else

System.out.println("Make apple juice!");

}

}

class Test

{

public static void main(String [] args)

{

Apple a = new Apple(0.2,"red");

//显示当前已创建的Apple对象数量

System.out.println("count=" + Apple.count);

System.out.println(a.getInfo());

a.howToEat(Edible.Edible_HOT);

}

}

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