我创建了一个名为 Fish 的类:
public class Fish {
private String species;
private int size;
//Constructor
public Fish(int x, String s) {
size = x;
species = s;
}
public String getSpecies() { return species; }
public int getSize() { return size; }
public String toString() {
return String.format("A %dcm %s", size, species);
}
}
我还开始创建一个名为 pond 的类,该类具有一个名为“fish”的属性,该属性包含 Fish 对象的数组。我不确定如何做到这一点。到目前为止,这是我的尝试。我是
public class Pond {
private int capacity;
private Object[] fish; //This is what I am trying to initialize. list of Fish.
private int numFish;
//Capacity Constructor
public Pond(int n, int c) {
n = numFish;
c = capacity;
}
public int getNumFish() { return numFish; }
public boolean isFull() {
boolean isFull = false;
if (numFish >= capacity) {
isFull = true;
}
else {
isFull = false;
}
return isFull;
}
public String toString() {
return String.format("Pond with %d fish", numFish);
}
public void add(Fish aFish) {
if (numFish <= capacity) {
numFish += 1;
fish.add Fish;
}
else {
numFish += 0;
}
}
}
最佳答案
更改此:
私有(private)对象[]鱼;
如下:
私有(private)鱼[]鱼;
即这些是鱼,而不是任何鱼
各种物体(例如,它们不是哺乳动物)。
关于java - 制作对象数组,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/21418173/