Fibonacci With Java

import java.util.ArrayList;  
import java.util.HashMap;
import java.util.stream.Stream;

public class Fibo {
    String name;
    int size;
    int hashID;
    ArrayList<Long> list;
    HashMap<Integer, Object> hash;

    public Fibo() {
        this(20);
    }

    public Fibo(int nth) {
        this.size = nth;
        this.list = new ArrayList<>();
        this.hashID = 0;
        this.hash = new HashMap<>();
        this.init();
    }

    protected void init() {
        this.name = "Stream";
        Stream.iterate(new long[]{0, 1}, f -> new long[]{f[1], f[0] + f[1]})
            .limit(this.size)
            .forEach(f -> this.setData(f[0]) );
    }

    public void setData(long num) {
        list.add(num);
        hash.put(this.hashID++, list.clone());
    }

    public long getNth() {
        return list.get(this.size - 1);
    }

    public Object getNthSeq(int i) {
        return hash.get(i);
    }

    public void print() {
        System.out.println("Init method = " + this.name);
        System.out.println("fibonacci Number " + this.size + " = " + this.getNth());
        System.out.println("fibonacci List = " + this.list);
        System.out.println("fibonacci Hashmap = " + this.hash);
        for (int i=0 ; i<this.size; i++ ) {
            System.out.println("fibonacci Sequence " + (i+1) + " = " + this.getNthSeq(i));
        }
    }

    static public void main(String[] args) {
        Fibo fib = new Fibo();
        fib.print();
    }
}
Fibo.main(null);

Init method = Stream
fibonacci Number 20 = 4181
fibonacci List = [0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610, 987, 1597, 2584, 4181]
fibonacci Hashmap = {0=[0], 1=[0, 1], 2=[0, 1, 1], 3=[0, 1, 1, 2], 4=[0, 1, 1, 2, 3], 5=[0, 1, 1, 2, 3, 5], 6=[0, 1, 1, 2, 3, 5, 8], 7=[0, 1, 1, 2, 3, 5, 8, 13], 8=[0, 1, 1, 2, 3, 5, 8, 13, 21], 9=[0, 1, 1, 2, 3, 5, 8, 13, 21, 34], 10=[0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55], 11=[0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89], 12=[0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144], 13=[0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233], 14=[0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377], 15=[0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610], 16=[0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610, 987], 17=[0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610, 987, 1597], 18=[0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610, 987, 1597, 2584], 19=[0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610, 987, 1597, 2584, 4181]}
fibonacci Sequence 1 = [0]
fibonacci Sequence 2 = [0, 1]
fibonacci Sequence 3 = [0, 1, 1]
fibonacci Sequence 4 = [0, 1, 1, 2]
fibonacci Sequence 5 = [0, 1, 1, 2, 3]
fibonacci Sequence 6 = [0, 1, 1, 2, 3, 5]
fibonacci Sequence 7 = [0, 1, 1, 2, 3, 5, 8]
fibonacci Sequence 8 = [0, 1, 1, 2, 3, 5, 8, 13]
fibonacci Sequence 9 = [0, 1, 1, 2, 3, 5, 8, 13, 21]
fibonacci Sequence 10 = [0, 1, 1, 2, 3, 5, 8, 13, 21, 34]
fibonacci Sequence 11 = [0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55]
fibonacci Sequence 12 = [0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89]
fibonacci Sequence 13 = [0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144]
fibonacci Sequence 14 = [0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233]
fibonacci Sequence 15 = [0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377]
fibonacci Sequence 16 = [0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610]
fibonacci Sequence 17 = [0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610, 987]
fibonacci Sequence 18 = [0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610, 987, 1597]
fibonacci Sequence 19 = [0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610, 987, 1597, 2584]
fibonacci Sequence 20 = [0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610, 987, 1597, 2584, 4181]