自带测试类
源代码：
public class TestFan {
public static void main(String[] args) {
Fan o1=new Fan();
Fan o2=new Fan();
o1.setspeed(o1.FAST);
o1.setradius(10);
o1.setcolor("yellow");
o1.seton(true);
o2.setspeed(o1.MEDIUM);
o2.setradius(5);
o2.setcolor("blue");
o2.seton(false);
System.out.println(o1.toString());
System.out.println(o2.toString());
}
}
class Fan{
int SLOW=1,MEDIUM=2,FAST=3;
private int speed=SLOW;
private boolean on=false;
private double radius=5;
String color="blue";
public Fan(){
}
public void setspeed(int newspeed){
speed=newspeed;
}
public void seton(boolean newon){
on=newon;
}
public void setradius(double newradius){
radius=newradius;
}
public void setcolor(String newcolor){
color=newcolor;
}
public int getspeed(){
return speed;
}
public boolean geton(){
return on;
}
public double getradius(){
return radius;
}
public String getcolor(){
return color;
}
public String toString(){
if(on){
return speed+" "+color+" "+radius;
}
else{
return "fan is off";
}
}
}运行结果：
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