package guoke;
public class Bus extends Vehicle { //Bus类继承 Vehicle类。在Bus.java我还建了其他Vehicle的子类，car,bicycle类
/*问：为什么通过反复调用不同子类的date方法，
name,number,way属性只赋值一次？ 我是这样调用的 Bus bus=new Bus();
bus.date();
Car car=new Car();
car.date();
结果显示全是第一次调用的结果，比如上面这样写的话， 就是显示两次bus的属性。
*/
/* 父类这样写的
public class Vehicle {
protected String name;
protected int number;
protected String way;
public void date(){
System.out.println("交通工具可以载客");
}
}
*/
protected String name="bus";//属性
protected int number=40;
protected String way="land";
protected String name="bus";
protected int number=40;
protected String way="land";
public void date() {//显示属性的值
// TODO Auto-generated constructor stub
System.out.println("公交汽车可以载客：");
System.out.println(name);
System.out.println("载客人数number:"+number);
System.out.println(way);
}
}
class Car extends Vehicle { //car子类
protected String name="car";
protected int number=4;
protected String way="land";
public void date() {
// TODO Auto-generated constructor stub
System.out.println("轿车可以载客：");
System.out.println(name);
System.out.println("载客人数number:"+number);
System.out.println(way);
}
class Bicycle extends Vehicle { //Bicycle子类
protected String name="bicycle";
protected int number=2;
protected String way="land";
public void date() {
// TODO Auto-generated constructor stub
System.out.println("自行车可以载客：");
System.out.println(name);
System.out.println("载客人数number:"+number);
System.out.println(way);
}
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