Account Class

/*
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 * and open the template in the editor.
 */
package doggydates;

import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.util.ListIterator;

/**
 *
 * @author WeaponX
 */
public class Account {

    private ListNode head;
    private ListNode current;
    private ListNode previous;
    private String username;
    private String password;
    private String email;
    private String name;
    private String breed;
    private String gender;
    private String age;
    private String state;
    private String hobby;

    public Account (String username, String password, String email, String name, String breed, String gender, String age, String state, String hobby){
        head = null;
        current = null;
        previous = null;
        this.username = username;
        this.password = password;
        this.email = email;
        this.name = name;
        this.breed = breed;
        this.gender = gender;
        this.age = age;
        this.state = state;
        this.hobby = hobby;
    }

    public String getUsername(){
        return username;
    }
    public String getPassword(){
        return password;
    }
    public String getEmail(){
        return email;
    }
    public String getName(){
        return name;
    }
    public String getBreed(){
        return breed;
    }
    public String getGender(){
        return gender;
    }
    public String getAge(){
        return age;
    }
    public String getState(){
        return state;
    }
    public String getHobby(){
        return hobby;
    }

    public void setUsername(String u){
        username = u;
    }
    public void setPassword(String p){
        password = p;
    }
    public void setEmail(String e){
        email = e;
    }
    public void setName(String n){
        name = n;
    }
    public void setBreed(String b){
        breed = b;
    }
    public void setGender(String g){
        gender = g;
    }
    public void setAge(String a){
        age = a;
    }
    public void setState(String s){
        state = s;
    }
    public void setHobby(String h){
        hobby = h;
    }

    @Override
    public String toString() {
        return ""+username+"\n"+password+"\n"+email+"\n"+name+"\n"+breed+"\n"+gender+"\n"+age+"\n"+state+"\n"+hobby;
    }

    public boolean onList(String target){
        return find(target) != null;
    }

    public String[] toArray(){
        String[] anArray = new String[length()];
        ListNode position = head;
        int i = 0;
        while(position != null){
            anArray[i] = position.data;
            i++;
            position = position.link;
        }
        return anArray;
    }

    private ListNode find(String target){
        boolean found = false;
        ListNode position = head;
        while ((position != null) && !found){
            String dataAtPosition = position.getData();
            if(dataAtPosition.equals(target))
                found = true;
            else
                position = position.getLink();
        }
        return position;
    }

    public void showList(){
        ListNode position = head;
        while (position != null){
            System.out.println(position.getData());
            position = position.getLink();
        }
    }

    public int length(){
        int count = 0;
        ListNode position = head;
        while (position != null){
            count++;
            position = position.getLink();
        }
        return count;
    }

    public void addANodeToStart(String addData){
        head = new ListNode(addData, head);
        if ((current == head.link) && (current != null))
            previous = head;
    }

    public void resetIteration(){
        current = head;
        previous = null;
    }

    public boolean moreToIterate(){
        return current != null;
    }

    public void goToNext(){
        if (current != null){
            previous = current;
            current = current.link;
        }
        else if (head != null){
            System.out.println("Iterated too many times or uninitialized iteration.");
            System.exit(0);
        }
        else{
            System.out.println("Iterating with an empty list.");
            System.exit(0);
        }
    }

    public String getDataAtCurrent(){
        String result = null;
        if (current != null)
            result = current.data;
        else{
            System.out.println("Getting data when current is not at any node.");
            System.exit(0);
        }
        return result;
    }

    public void setDataAtCurrent(String newData){
        if(current != null){
            current.data = newData;
        }
        else{
            System.out.println("Setting data when current is not at any node.");
            System.exit(0);
        }
    }

    public void insertNodeAfterCurrent(String newData){
        ListNode newNode = new ListNode();
        newNode.data = newData;
        if(current != null){
            newNode.link = current.link;
            current.link = newNode;
        }
        else if (head != null){
            System.out.println("Inserting when iterator is past all " + "nodes or is not initialized.");
            System.exit(0);
        }
        else{
            System.out.println("Using insertNodeAfterCurrent with empty list.");
            System.exit(0);
        }
    }

    public void deleteCurrentNode(){
        if((current != null) && (previous == null)){
            previous.link = current.link;
            current = current.link;
        }
        else if((current != null) && (previous == null)){
            head = current.link;
            current = head;
        }
        else{
            System.out.println("Deleting with uninitialized current or any empty " + "list.");
            System.exit(0);
        }
    }

    private class ListNode{

        private String data;
        private ListNode link;

        public ListNode(){
            link = null;
            data = null;
        }

        public ListNode(String newData, ListNode linkValue){
            data = newData;
            link = linkValue;
        }

        //sets data into a node
        public void setData(String newData){
            data = newData;
        }

        // gets data in a node
        public String getData(){
            return data;
        }

        //connects a node to another node
        public void setLink(ListNode newLink){
            link = newLink;
        }

        //gets the next node
        public ListNode getLink(){
            return link;
        }

    }

}