Address n nodes data structure - Java

package com.ds.trees;
import java.util.ArrayList;import java.util.List;
/** * Created by skupunarapu on 10/16/2015. */public class Address {

    public static void main(String[] args) {
        AddrNode addrNodeCountry = new AddrNode();        addrNodeCountry.setValue("India");        addrNodeCountry.setAncestor(null);
        AddrNode addrNodeSAP = new AddrNode();        addrNodeSAP.setValue("Andhra Pradesh");        addrNodeSAP.setAncestor(addrNodeCountry);
        AddrNode addrNodeSTel = new AddrNode();        addrNodeSTel.setValue("Telangana");        addrNodeSTel.setAncestor(addrNodeCountry);
        AddrNode addrNodeSTN = new AddrNode();        addrNodeSTN.setValue("Tamil Nadu");        addrNodeSTN.setAncestor(addrNodeCountry);
        AddrNode addrNodeDHyd = new AddrNode();        addrNodeDHyd.setValue("Hyderabad");        addrNodeDHyd.setAncestor(addrNodeSTel);        addrNodeDHyd.setChildNodes(null);
        AddrNode addrNodeDRR = new AddrNode();        addrNodeDRR.setValue("RangaReddy");        addrNodeDRR.setAncestor(addrNodeSTel);        addrNodeDRR.setChildNodes(null);
        AddrNode addrNodeDGun = new AddrNode();        addrNodeDGun.setValue("Guntur");        addrNodeDGun.setAncestor(addrNodeSAP);        addrNodeDGun.setChildNodes(null);
        AddrNode addrNodeDAmr = new AddrNode();        addrNodeDAmr.setValue("Amaravati");        addrNodeDAmr.setAncestor(addrNodeSAP);        addrNodeDAmr.setChildNodes(null);
        AddrNode addrNodeDVlrr = new AddrNode();        addrNodeDVlrr.setValue("Vellore");        addrNodeDVlrr.setAncestor(addrNodeSTN);        addrNodeDVlrr.setChildNodes(null);
        AddrNode addrNodeDSal = new AddrNode();        addrNodeDSal.setValue("Salem");        addrNodeDSal.setAncestor(addrNodeSTN);        addrNodeDSal.setChildNodes(null);
        List<AddrNode> TNDistricts = new ArrayList<AddrNode>();        TNDistricts.add(addrNodeDVlrr);        TNDistricts.add(addrNodeDSal);
        List<AddrNode> APDistricts = new ArrayList<AddrNode>();        APDistricts.add(addrNodeDAmr);        APDistricts.add(addrNodeDGun);
        List<AddrNode> TelDistricts = new ArrayList<AddrNode>();        TelDistricts.add(addrNodeDHyd);        TelDistricts.add(addrNodeDRR);
        addrNodeSAP.setChildNodes(APDistricts);        addrNodeSTel.setChildNodes(TelDistricts);        addrNodeSTN.setChildNodes(TNDistricts);
        List<AddrNode> IndiaStates = new ArrayList<AddrNode>();        IndiaStates.add(addrNodeSAP);        IndiaStates.add(addrNodeSTel);        IndiaStates.add(addrNodeSTN);
        addrNodeCountry.setChildNodes(IndiaStates);
        getAncestor(addrNodeDRR);    }



    public static class AddrNode{
        private List<AddrNode> childNodes;        private String value;        private AddrNode ancestor;
        public List<AddrNode> getChildNodes() {
            return childNodes;        }

        public void setChildNodes(List<AddrNode> childNodes) {
            this.childNodes = childNodes;        }

        public String getValue() {
            return value;        }

        public void setValue(String value) {
            this.value = value;        }

        public AddrNode getAncestor() {
            return ancestor;        }

        public void setAncestor(AddrNode ancestor) {
            this.ancestor = ancestor;        }
    }

    public static void getAncestor(AddrNode currentNode){
        if(currentNode != null){
            System.out.println("current node: " + currentNode.value);            if(currentNode.ancestor != null){
                System.out.println("parent node :" + currentNode.ancestor.value);                getAncestor(currentNode.ancestor);            }else return;        }
    }
}