import java.io.*;

public class FileIO {

  File file;  
  int bufferSize = 16;

  public FileIO(File f){
      file=f;
  }

  public FileIO(String s){
      file=new File(s);
  }

  public FileIO(String s, int bs){
    file=new File(s);
    bufferSize=bs;
  }

  public String content() {
      return read();
  }

  public String read () {
    /* Open the file and
     * return the contents of it as a String.
     */

    StringBuffer buffer = new StringBuffer();

    try {
	FileInputStream is = new FileInputStream(file);
	BufferedReader in=new BufferedReader(
		 new InputStreamReader(is));
	String r=in.readLine();
	while(r!=null){
	    buffer.append(r+"\n");
	    r=in.readLine();
	}
	is.close();
    }
    catch (Exception err) {
	/* Return an empty string on error */
	buffer=new StringBuffer();
    }
    return buffer.toString().trim();
  }	

  public String write (String s) {
    /* Open the file and write s to it */
      String t=new String();
      try{
	  byte[] b=s.getBytes();
	  FileOutputStream f = new FileOutputStream(file);
	  f.write(b);
	  f.close();
	  t="File saved.";
      }
      catch(Exception ex){
	  t="Error: "+ex.toString();
      }
      return t;
  }	

    public String append (String s) {
      String t=new String();
      return t;
    }
}