In generation zero, we have one egg, no chickens, and no hens. In the nth generation, each egg from the previous generation hatches into a chicken, each chicken from the previous generation grows up into a hen, and each hen from the previous generation lays an egg. Complete the mutually recursive functions that yield the number of hens, chickens, and eggs in the nth generation

Poultry.java
1 public class Poultry
{
public static int hens(int n)
{
}
public static int chickens (int n)
{
}
public static int eggs (int n) 17
}