定义一个交通工具的类

交通工具的类"/>

定义一个交通工具的类

  请定义一个交通工具的类，其中有属性：速度，体积，方法：移动，设置速度，加速，减速

最后实例化一个交通工具 

public class Vehicle {public static void main(String[] args) {Vehicle1 v = new Vehicle1();v.move();v.setSpeed(0);v.setSize(5);System.out.println("speed:" + v.getSpeed());System.out.println("size:" + v.getSize());v.speedUp(10);System.out.println("speed:" + v.getSpeed());v.speedDown(10);System.out.println("speed:" + v.getSpeed());}
}class Vehicle1{private int speed;private int size;public int getSpeed() {return speed;}public void setSpeed(int speed) {this.speed = speed;}public int getSize() {return size;}public void setSize(int size) {this.size = size;}public Vehicle1(int speed, int size) {this.speed = speed;this.size = size;}public Vehicle1() {}public void move(){System.out.println("公共汽车开始起步");}public void speedUp(int addSpeed){this.setSpeed(this.getSpeed() + addSpeed);}public void speedDown(int subSpeed){this.setSpeed(this.getSpeed() - subSpeed);}
}

 输出结果：