//定義一個(gè)交通工具的父類Vehicle

public class Vehicle {

? ? private String tool;? ? ?//定義運(yùn)輸工具

? ? private String way;? ? ?//定義運(yùn)輸方式

? ? private int amount;? ? ?//定義運(yùn)輸人數(shù)

? ? public void tranSport(String tool,String way,int amount){

? ? ? ? this.tool = tool;

? ? ? ? this.way = way;

? ? ? ? this.amount = amount;

? ? }

? ? public void tranSport(){

? ? ? ? System.out.println(tool+"可以在"+way+"載客"+amount+"人");

? ? }

}

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//公共汽車子類

public class Bus extends Vehicle{

? ? public Bus(){

? ? ? ? super.tranSport("公共汽車","陸地",40);

? ? }

}

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//輪船子類

public class Steamship extends Vehicle{

? ? public Steamship(){

? ? ? ? super.tranSport("輪船","海上",200);

? ? }

}

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//飛機(jī)子類

public class Plane extends Vehicle{

? ? public Plane(){

? ? ? ? super.tranSport("飛機(jī)","天空",400);

? ? }

}

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//輸出結(jié)果

? ? public static void main(String[] args){

? ? ? ?//利用對(duì)象的多態(tài)創(chuàng)建實(shí)例

? ? ? ? Vehicle bus = new Bus();

? ? ? ? bus.tranSport();

? ? ? ? Vehicle steamship = new Steamship();

? ? ? ? steamship.tranSport();

? ? ? ? Vehicle plane = new Plane();

? ? ? ? plane.tranSport();

? ? }