BufferReader

public class d{

    public  static void main(String args[]){
    
     String a=null;
     try{
      BufferedReader is=new BufferedReader(new FileReader("D:\\javadaima\\src\\ch1\\inputstream\\b.java"));
      while((a=is.readLine())!=null)
   System.out.println(a);
     }catch(IOException ex){}
    
    }
}