Java8 programming,ArrayList,List,recursion,tree, please explain in detail

You will need to create two classes, Family Tree and FamilyMember. The objective of the Family- Member class is to represent a person within a family tree. Use the following scaffold as part of your solution. import java.util.List; import java.util.ArrayList; public class FamilyMember { private String name; private int age; private List children; //Rest of your code here import java.util.List; public class FamilyTree { private FamilyMember headofFamily; public FamilyTree (FamilyMember headOfFamily) { this.headofFamily = headofFamily; public List getAll() { //Your code here public List getParents() { //Your code here public List get Childless () { ///Your code here public List getUnclesAndAunties () { //Your code here public static void main(String[] args) { //Test your code here Consider the following family tree: Jeremy Meredith Sarah Kelly James Fred David Fiona After implementing the FamilyTree and FamilyMember classes, implement the following queries Write a method public List getAll() which will retrieve all fam- ily members that are part of the family tree. Write a method public List getAllParents () which will re- trieve all family members that have children, after writing getAllParents, write the inverse that will find all Family Member's that do not have a child. Difficult: Write a method public List get UnclesAndAunties (). which will find all uncles and aunties