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  • 请定义一个交通工具(Vehicle)的类,其中有: 属性:速度(speed),体积(size)等等

     1 public class Vehicle {
     2     double speed;
     3     double size;
     4     Vehicle(){
     5         speed=1.0;
     6         size=2.0;
     7     }
     8     void move(){    
     9     }
    10     void setSpeed(int speed){
    11         this.speed=speed;
    12     }
    13     void setSize(int size){
    14         this.size=size;
    15     }
    16     void speedUp(){
    17         speed=speed+1;
    18         System.out.println("汽车加速后的速度为"+speed+"千米/时");
    19     }
    20     void speedDown(){
    21         speed=speed-1;
    22         System.out.println("汽车减速后的速度为"+speed+"千米/时");
    23     }
    24 }
    25 --------------------------------------------------------------------------------
    26 public class Test {
    27 
    28     public static void main(String[] args) {
    29         // TODO Auto-generated method stub
    30         Vehicle aaa=new Vehicle();
    31         System.out.println("汽车的速度为"+aaa.speed+"千米/时");
    32         System.out.println("汽车的体积为"+aaa.size+"立方米");
    33         aaa.speedUp();
    34         aaa.speedDown();
    35     }
    36 
    37 }
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  • 原文地址:https://www.cnblogs.com/a709898670/p/9369835.html
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