置速度、设置颜色、取得类别、取得颜色。创建Vehicle的对象,为其设置新速度和颜色,并显示其状态(所有属性)。
代码:
class Vehicle
{
private static int speed;
private static String kind;
private static String color;
public void setSpeed(int s)
{
speed=s;
}
public void setColor(String c)
{
color=c;
}
public String getKind(String string){return kind;}
public String getColor(String string){return color;}
public static void main(String args[])
{
Vehicle veh=new Vehicle();
veh.setSpeed(100);
veh.setColor("black");
veh.getKind("car");
veh.getColor("black");
System.out.println("kind="+kind+"\nspeed="+speed+"\ncolor="+color);
}
}
结果:
kind=null
speed=100
color=black
这是我编写的代码,为什么种类kind显示不了啊,该怎么修改啊?急!