Question

Is it possible to open a file a in java append data and close numerous times. For example:

 //---- psuedocode
      //class variable declaration 
      FileWriter writer1 = new FileWriter(filename);

      fn1:

         writer.append(data - title);

      fn2:
       while(incomingdata == true){
         writer.append(data)
         writer.flush();
         writer.close()
        }

The problem lies in the while loop. The file is closed and cant be opened again. Any one can help me in this?

Answer 1

The answers that advise against closing and re-opening the file each time are quite correct.

However, if you absolutely have to do this (and it’s not clear to me that you do), then you can create a new FileWriter each time. Pass true as the second argument when you construct a FileWriter, to get one that appends to the file instead of replacing it. Like

FileWriter writer1 = new FileWriter(filename, true);