定义一个汽车类Vehicle, a.属性包括:汽车品牌brand(String类型)颜色color(String类型)和速度speed(double类型); b.至少提供一个有参的构造方法(要求品牌和颜色可以初始化为任意值,但速度的初始值必须为0); c.定义一个方法run(),用打印语句描述汽车奔跑的功能; d.在主类的main()创建一个品牌为“大众”、颜色为“black”的汽车。
时间: 2023-05-28 12:04:45 浏览: 99
public class Vehicle {
private String brand;
private String color;
private double speed;
public Vehicle(String brand, String color) {
this.brand = brand;
this.color = color;
this.speed = 0;
}
public void run() {
System.out.println(color + " " + brand + " is running at " + speed + " km/h");
}
public String getBrand() {
return brand;
}
public void setBrand(String brand) {
this.brand = brand;
}
public String getColor() {
return color;
}
public void setColor(String color) {
this.color = color;
}
public double getSpeed() {
return speed;
}
public void setSpeed(double speed) {
this.speed = speed;
}
}
public class Main {
public static void main(String[] args) {
Vehicle car = new Vehicle("大众", "black");
car.run();
}
}