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package util;

import java.io.BufferedReader;

import java.io.File;

import java.io.FileNotFoundException;

import java.io.FileReader;

import java.io.IOException;

import java.util.ArrayList;

public class DataUtil {

public static ArrayList<HousingData> importHousingData(){

ArrayList<HousingData> result= new ArrayList<HousingData>();

try {

File file=new File("src/util/housing.data");

BufferedReader reader=new BufferedReader(new FileReader(file));

String line=null;

int lineNum=1;

while((line=reader.readLine()) != null && lineNum<=10){

String[] values=line.trim().split("\\s+");

if(values.length != 14){

System.err.println("Line: "+lineNum+" contains less than 14 attributes");

System.exit(1);

}

lineNum ++;

double[] dataItems=new double[14];

for(int i=0;i<14;i++){

dataItems[i] = Double.parseDouble(values[i]);

}

HousingData item=new HousingData(dataItems);

result.add(item);

}

} catch (FileNotFoundException e) {

// TODO Auto-generated catch block

e.printStackTrace();

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

return result;

}

private static void printHouseData(ArrayList<HousingData> data){

for(HousingData d:data){

double[] values=d.getData();

for(double value:values){

System.out.print(value+" ");

}

System.out.println();

}

}

/**

* @param args

*/

public static void main(String[] args) {

// TODO Auto-generated method stub

// String sample=" 0.02731 0.00 7.070 0 0.4690 6.4210 78.90 4.9671 2 242.0 17.80 396.90 9.14 21.60";

// String[] values=sample.trim().split("\\s+");

// System.out.println(values.length);

// for(String value:values)

// System.out.println(value);

// for(int i=0;i<14;i++){

// System.out.print("Double.parseDouble(values["+i+"]),");

// }

printHouseData(importHousingData());

}

}