Tree problem

Code :

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package project2;
 
import java.util.ArrayList;
import java.util.LinkedList;
import java.util.List;
 
public class Exercise {
    String krikor = "lolig";
 
    public Exercise() {
 
        List<Node> nodelist = new ArrayList();
        String[] jo = new String[4];
        jo[0] = "Elie>2>4";
        jo[1] = "Elie>3>1>2";
        jo[2] = "Krikor>Elie>7";
        jo[3] = "Krikor>Elie>6";
        int f = jo.length;
        int p1 = -1;
 
        while(f > 0)
        {
        f = f - 1;
            String[] split = jo[f].split(">");
            int x = split.length;
            int l = x;
            int o = l;
            while (x > 0) {
            x = x - 1;
 
                Node krikor = new Node();
                krikor.setName(split[x]);
                krikor.setLevel(x);
                if(o!=l)
                {
                krikor.getChilds().add(nodelist.get(p1));
 
                }
                o = o - 1;
                nodelist.add(krikor);
                p1 = p1 + 1;
            }
        }
        fix(nodelist);
        int size = nodelist.size();
        int sizes =0;
        while(sizes < size)
        {
             if(nodelist.get(sizes).getLevel() == 0)
             print(nodelist.get(sizes),"");
              sizes = sizes + 1;
        }
 
 
    }
    public void fix(List<Node> nodelist )
    {
        int i = 0;
        while(i < nodelist.size())
        {
            int o= 0;
            while(o < nodelist.size())
            {
                if(nodelist.get(i).getName().equals(nodelist.get(o).getName()))
                {
                move(nodelist.get(i),nodelist.get(o),nodelist);
                nodelist.remove(o);
                    System.out.println("entered here fix ");
                o = o - 1;
                }
                o = o + 1;
            }
            i = i + 1;
        }
    }
    public void move(Node i, Node o,List<Node> nodelist  )
    {
       int po = 0;
        int f = 0;
        System.out.println("entered here move ");
        while(f < i.getChilds().size())
        {
            int o1= 0;
            while(o1 <  o.getChilds().size())
            {
                if(nodelist.get(f).getName().equals(nodelist.get(o1).getName()))
                {
                move(nodelist.get(f),nodelist.get(o1),nodelist);
              //  nodelist.remove(o1);
               // o1 = o1 - 1;
                po = 1;
                }
                o1 = o1 + 1;
            }
 
        f = f +1;
        }
 
       if(po == 0)
        {
            i.getChilds().add(copy(o));
         }
 
    }
    public Node copy(Node m)
    {
        Node o = new Node();
        o.setName(m.getName());
        o.setParent(m.getParent());
        int op = m.getChilds().size();
        while(op > 0)
        {
            op = op - 1;
            o.getChilds().add(copy(m.getChilds().get(op)));
        }
 
 
        return o;
    }
    public void print(Node node,String m)
    {
    System.out.println(m+""+node.getName());
    String o = m + "-------";
    if(node.getChilds().size() != 0)
    {
          int i = node.getChilds().size();
         while(i > 0)
         {
         i = i - 1;
        print(node.getChilds().get(i),o);
        }
    }
    }
 
    public void setKrikor(String krikor) {
        this.krikor = krikor;
    }
 
    public String getKrikor() {
        return krikor;
    }
}

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Code :

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package project2;
 
import java.util.ArrayList;
import java.util.List;
 
public class Node {
    String name;
    int level;
    public ArrayList<Node> childs = new ArrayList<Node>();
    String parent="";
    boolean flag = false;
    public void setName(String name) {
        this.name = name;
    }
 
    public String getName() {
        return name;
    }
 
    public void setChilds(ArrayList<Node> childs) {
        this.childs = childs;
    }
 
    public ArrayList<Node> getChilds() {
        return childs;
    }
 
    public void setLevel(int level) {
        this.level = level;
    }
 
    public int getLevel() {
        return level;
    }
 
    public void setParent(String parent) {
        this.parent = parent;
    }
 
    public String getParent() {
        return parent;
    }
 
    public void setFlag(boolean flag) {
        this.flag = flag;
    }
 
    public boolean isFlag() {
        return flag;
    }
}

---

I want to print it

Elie
-------2
-----------4
-------3
-----------1
-----------------2
krikor
--------elie
--------------7
--------------6

I am getting stack overflow error in move. Also some conditions is wrong.Can someone help me with algorithm here?