public class Data {
	
	private String Date;
	private String Open;
	private String High;
	private String Low;
	private String Close;
	private String Volume;
	
	//default constructor  having the same name of the class
	public Data(){
		this.Date = null;
		this.Open = null;
		this.High = null;
		this.Low = null;
		this.Close = null;
		this.Volume = null;
		
	}//regular constructor
	public Data(String Date, String Open, String High, String Low, String Close, String Volume)
	{
		this.Date = Date;
		this.Open = Open;
		this.High = High;
		this.Low = Low;
		this.Close = Close;
		this.Volume = Volume;
	}
	public String getDate(){
		return this.Date;
	}
	public String getOpen(){
		return this.Open;
	}
	public String getHigh(){
		return this.High;
	}
	public String getLow(){
		return this.Low;
	}
	public String getClose(){
		return this.Close;
	}
	public String getVolume(){
		return this.Volume;
	}
}

import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.*;
import java.util.Vector;
import java.io.BufferedWriter;
import java.io.FileWriter;
import java.io.File;

//these will work once you import the jar file from www.csvreader.com 
import com.csvreader.CsvReader;
import com.csvreader.CsvWriter;


public class getData {

	private static Vector<Data> dailyData;
	
	public void inputData(){
		//the vector to hold the data
		dailyData = new Vector<Data>();
		try
		{
		CsvReader products = new CsvReader("C:\\AAPL.txt");
		products.readHeaders();
			while(products.readRecord())
			{
				dailyData.add(new Data(
					products.get("Date"),
					products.get("Open"),
					products.get("High"),
					products.get("Low"),
					products.get("Close"),
					products.get("Volume")));
				
				
			}
		products.close();
		}
		catch(FileNotFoundException e){
			e.printStackTrace();
		}
		catch(IOException e){
			e.printStackTrace();
		}
		
	}
	public void outputData(){
		//nothing yet
		for(int i = 0; i<dailyData.size();i++){
			System.out.println(dailyData.get(i).getDate()+";"+dailyData.get(i).getOpen()+";"+dailyData.get(i).getHigh()+";"+dailyData.get(i).getLow()+";"+dailyData.get(i).getClose()+";"+dailyData.get(i).getVolume());
		}
		String outputFile = "AAPL_ninjaTrader.txt";
		//check if file exists
		boolean alreadyExists = new File(outputFile).exists();
		try
		{
			CsvWriter csvOutput = new CsvWriter(new FileWriter(outputFile, true), ';');
			
			//if the file didn't already exist, then we need to write out the header line
			if(!alreadyExists)
			{
				csvOutput.write("Date");
				csvOutput.write("Open");
				csvOutput.write("High");
				csvOutput.write("Low");
				csvOutput.write("Close");
				csvOutput.write("Volume");
				csvOutput.endRecord();
			}
			//else assume that the file already has the correct header line
			//write out a few records
			for(int i = 0; i<dailyData.size();i++){
				csvOutput.write(dailyData.get(i).getDate());
				csvOutput.write(dailyData.get(i).getOpen());
				csvOutput.write(dailyData.get(i).getHigh());
				csvOutput.write(dailyData.get(i).getLow());
				csvOutput.write(dailyData.get(i).getClose());
				csvOutput.write(dailyData.get(i).getVolume());
				
				csvOutput.endRecord();
			}
			csvOutput.close();
		}
	
		catch(IOException e)
		{
			e.printStackTrace();
		}
	}
	public static void main(String args []){
		getData load = new getData();
		load.inputData();
		load.outputData();
		
	}
}