麻烦大神们看看
class Fish{
int w = 1;
}
class Lake {
Fish fish;
void setFish(Fish s){ //Fish s表示什么意思？
fish = s;
}
void foodFish(int m){
fish.w = fish.w+m;
}
}
public class E {
public static void main(String[] args) {
// TODO Auto-generated method stub
Fish redFish = new Fish();
System.out.println(redFish.w);
Lake lake = new Lake();
lake.setFish(redFish);
lake.foodFish(120);
System.out.println(redFish.w); //请问这个结果怎么得来？
System.out.println(lake.fish.w);输出结果为1 121 121.
