关于程序员:提高代码复用性

package car;

public class Car {

String color;int number; void run(){    System.out.println(color+"::"+number);}

}

class carDemo
{

public static void main(String[] args){    Car c = new Car();     show(c);}/* * 封装性能 * Car c = new Car(); * Car c1 = new Car(); * */public static void show(Car cc){    cc.color = "red";    cc.number = 4;    cc.run();     }

}