困扰我两天的例题,请兄弟们赐教!
代码如下:
class WaterSourse
{
private String s;
WaterSourse()
{
System.out.println("WaterSourse()");
s=new String("Constructed");
}
public String toString()
{
return s;
}
}
public class SprinklerSystem
{
private String valve1,valve2,valve3,valve4;
private WaterSourse source;
private int i;
private float f;
public String toString()
{
return
"valve1="+valve1+"\n"+
"valve2="+valve2+"\n"+
"valve3="+valve3+"\n"+
"valve4="+valve4+"\n"+
"i="+i+"\n"+
"f="+f+"\n"+
"source="+source;
}
public static void main(String []args)
{
SprinklerSystem sprinklers=new SprinklerSystem();
System.out.println(sprinklers);
}
}
能告诉我它的执行过程吗?