说出下列 E 类中【代码 1 】 ~ 【代码 3 】的输出结果。代码1 、代码2 、代码3 。 class Fish { int weight = 1; } class Lake { Fish fish; void setFish(Fish s){ fish = s; } void foodFish(int m) { fish.weight=fish.weight+m; } } public class E { public static void main(String args[]) { Fish redFish = new Fish(); System.out.println(redFish.weight); //【代码1】 Lake lake = new Lake(); lake.setFish(redFish); lake.foodFish(120); System.out.println(redFish.weight); //【代码2】 System.out.println(lake.fish.weight); //【代码3】 } }