//
//Readクラスを継承しています
//ファイルを読み込むためのRead
//
//
//
package Rea;
import java.io.*;


public class FileRead extends Read<String>
{
  private String filename;
  private BufferedReader breader;
  private FileInputStream fistream;
  private InputStreamReader isreader;
  

  public FileRead(String name)
    {
      filename = name;
      breader = null;
    }
  
  public FileRead()
    {
      filename ="hello.txt";
      breader = null;
    }
  
  
  public void init()
    {
      try
        {
          fistream = new FileInputStream(filename);
          isreader = new InputStreamReader(fistream);
          breader =   new BufferedReader(isreader);
        }catch (Exception e){
          e.printStackTrace();
        }
    }
  
  
  public String read(int num)
    {
      char cbuf[] = new char[num];
      try
        {
         if(-1 == breader.read(cbuf,0,num))
           {
             return null;
           }
        }catch(Exception e)
          {
            return null;
          }
      return new String(cbuf);
    }
  
  
  public String readLine()
    {
      try{
      return breader.readLine();
      }
      catch(Exception e){
          return null;
        }
    }

  
  public void fin()
    {
      try{
      fistream.close();
      fistream = null;
      isreader.close();
      isreader = null;
      breader.close();
      breader  = null;
      }catch(Exception e)
        {
          ;
        }  
    }


  public static void main(String []argsv)
    {
      Read  fr = new FileRead();
      fr.init();
      
      System.out.println(fr.readLine());
      
      fr.fin();
    }
  
}