public ArrayList processList(File f){
    this.f =f;
    
    if(f.canRead()) System.out.println("F is " + f );   //error check
    
    try{
      br = new BufferedReader(new FileReader(f));
    }catch(Exception t){
      System.out.println("file is not readable");
    }
    
    int count =0;  
    while(count<3){
      
      try{       
        temp = br.readLine(); 
        if(temp==null) count++;
        pst.add(temp); count = 0;
      }catch(Exception x){
        System.out.println("Something is wrong");
      }
    }
    return pst;
  }

 public ArrayList processList(File f) throws IOException{
    
    RandomAccessFile raf = new RandomAccessFile(f, "r");
 
    String temp = null;
    try {
      while((temp = raf.readLine( )) != null) 
      System.out.println(temp);
      pst.add(temp);
      System.out.println("size of pst is " + pst.size() );
    }catch(IOException e) {
      System.out.println(e + " reading lines.");
    }
     raf.close( ); 
     Return pst;

}