Programming

import io.*;
import java.io.File;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.FileInputStream;
import java.util.StringTokenizer;
import java.io.InputStreamReader;
import java.io.IOException;
import java.util.ArrayList;

public class CSVParser 
{
   private String filename;

	public CSVParser(String inFilename )
	{
		//setFilename( filename );
	}
	public void setFileName( String inFilename )
	{
		this.filename = inFilename;
	}
	public String getFilename()
	{
     return filename;
	}
   private void readFileExample(String inFilename) 
    {
		ArrayList WarehouseItem = new ArrayList();

     FileInputStream fileStrm = null;
     InputStreamReader rdr;
     BufferedReader bufRdr;
     int lineNum;
     String line;
     try 
        {
     fileStrm = new FileInputStream(inFilename); 
     rdr = new InputStreamReader(fileStrm); 
     bufRdr = new BufferedReader(rdr);
     lineNum = 0;
     line = bufRdr.readLine();
     while (line != null) 
      {
        lineNum++;
        processLine(line);
        line = bufRdr.readLine();
      }
            if ( lineNum > 1000000)
            {
                System.out.print(" Error, The record cannot be more than 1 millon");
            }
     fileStrm.close();
    }
    catch (IOException e) 
        {
           if (fileStrm != null) 
           {
            try { fileStrm.close(); 
            } catch (IOException ex2) { }
           }
        System.out.println("Error in file processing: " + e.getMessage());
       }   
     }
    private void processLine(String csvRow) 
    {
        StringTokenizer strTok;
        int key, weightLnKg;
        String brand, model;
        double price;
        strTok = new StringTokenizer(csvRow);
        try 
        {
            key = Integer.parseInt(strTok.nextToken());
            brand = strTok.nextToken();
            model = strTok.nextToken();
            weightLnKg = Integer.valueOf(strTok.nextToken());
            price = Double.valueOf(strTok.nextToken());
            System.out.println(" key:" + key + "brand:" + brand + "model:" + model + 
                               "weight:" + weightLnKg + "price:" + price);
        }
        catch (Exception e) 
        {
            throw new IllegalStateException("CSV row had invalid format (too few columns?)");
        }
    }
		//public String toString()
		//{
		//}
    		public static void main(String[] args)
    		{
			String filename = "test.csv";
			CSVParser csv = new CSVParser(filename);
			//csv.readFileExample();
		   }               
}

import io.*;
public class WarehouseItem
{
	private int key;
	private String brand;
	private String model;
	private int weightKg;
	private double price;

	public WarehouseItem( int inkey, String inBrand, String inModel, int inWeightKg, double inPrice)
	{
		setKey( key );
		setBrand( brand );
		setModel( model );
		setWeightKg( weightKg );
		setPrice( price );
    
	}
	public void setKey( int inKey )
	{
		key = inKey;
	}
	public int getkey()
	{
		return key;
	}
	public void setBrand( String inBrand )
	{
		brand = inBrand;
	}
	public String getBrand()
	{
		return brand;
	}
	public void setModel( String inModel )
	{
		model = inModel;
	}
	public String getModel()
	{
		return model;
	}
	public void setWeightKg( int inWeightKg )
	{
		  if (Math.floor(weightKg)!= weightKg) 
        {
           throw new IllegalArgumentException("The Weight is not integer");
        }
			else
				{
					weightKg = inWeightKg;
				}
	}
	public int getWeightKg()
	{
		return weightKg;
	}
	public void setPrice( double inPrice )
	{
		
        if (Math.round(price) != price) 
        {
            throw new IllegalArgumentException("The Weight is not double");
        }
			else
 			{
				price = inPrice;
			}
	}
	public double getPrice()
	{
		return price;
	}
}