package huff;

import java.util.*;
import java.io.*;
public class TreeReader {
	private final boolean OK=true;
	private final boolean ERROR=false;
	//private ArrayList<TreeNode> list=new ArrayList<TreeNode>();
	private ObjectInputStream  oi; 
	//private ArrayList<TreeNode> ct=new ArrayList();
	private ArrayList<TreeNode> read(String filename){
		 TreeNode node=null;
	     ArrayList<TreeNode> ct=new ArrayList();
		try{
			  oi=new ObjectInputStream(   
		       new FileInputStream(filename));  
			  while(true){
			      if((node=(TreeNode)oi.readObject())!=null){ct.add(node);}
			      else{break;}
			  }
			    	  oi.close();
		   }
		catch(Exception e){
			 e.printStackTrace();
			 
		}
		return ct;
	}
	public ArrayList<TreeNode> getList(String filename){
		return read(filename);
	}
    
}