[SOLVED] Problem in File Reading...

Code :

import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.DataInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.logging.Level;
import java.util.logging.Logger;
 
/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
 
/**
 *
 * @author Shahzads
 */
public class assignment {
 
    public static void main(String[] args) throws IOException{
    String[] key_Words=new String[11];
    key_Words[0]="int";
    key_Words[1]="long";
    key_Words[2]="public";
    key_Words[3]="static";
    key_Words[4]="void";
    key_Words[5]="main";
    key_Words[6]="print";
    key_Words[7]="println";
    key_Words[8]="System";
    key_Words[9]="out";
    key_Words[10]="class";
    BufferedReader b_R=new BufferedReader(new InputStreamReader(System.in));
    String file_Name=null;
            // file_Name = b_R.readLine();
 
            file_Name="D:\\a.txt";       
 
            File file=new File(file_Name);
            FileInputStream f_IS=new FileInputStream(file);
            BufferedInputStream b_IS=new BufferedInputStream(f_IS);
            DataInputStream d_IS=new DataInputStream(b_IS);
            while(d_IS.available()!=0){
            String line=b_R.readLine();
            System.out.println(line);
            }
            d_IS.close();
            b_IS.close();
            f_IS.close();
            /*while(line!=null){
            System.out.println(line);
            line=b_R.readLine();
            }*/
 
 
 
    }
 
}

I want to read the file but i don't know why it's not reading the first line. Can any of you suggest me, where to look exactly.... Thanks for reading the post.