The decorative mode of enhanced class linenumberreader of character stream buffer

Import Java.io.BufferedReader;
Import Java.io.FileReader;
Import java.io.IOException;
Import Java.io.Reader;

/**

• Simulation Class LineNumberReader
• Features to get and set line numbers
• @author Wangshuang

• */
  public class Demo {

  public static void Main (string[] args) {
  Mylinenumberreader r = null;
  try {
  FileReader fw = new FileReader ("C: n character stream buffer. txt");
  R=new Mylinenumberreader (FW);
  String buff = null;
  while ((Buff=r.myreadline ())!=null) {
  System.out.println (R.getmylinenumber () + ":" +buff);
  }

  } catch (Exception e) {    throw new RuntimeException("读取错误");}finally {    if(r!=null){        try {            r.close();        } catch (IOException e) {            // TODO Auto-generated catch block            e.printStackTrace();        }    }}

  }
  }
  Class Mylinenumberreader extends bufferedreader{
  private int mylinenumber;//Line number counter
  Public Mylinenumberreader (Reader in) {

  super(in);

  }
  Public String Myreadline () throws ioexception{
  mylinenumber++;
  return Super.readline ();
  }
  public int Getmylinenumber () {
  return mylinenumber;
  }
  public void Setmylinenumber (int mylinenumber) {
  This.mylinenumber = Mylinenumber;
  }

}

The decorative mode of enhanced class linenumberreader of character stream buffer