public void printToFile( ResultSet rs, String path ) throws IOException { 

     PrintStream out = new FileOutputStream( path );

     int cols = rs.getMetaData().getColumnCount();

     while( rs.next() ) { 
         for( int i = 0; i < cols ; i++ ) { 
             out.printf("%s,", rs.getObject( i ) );
          }           
          out.println();
     }

     // add exception handling and such...
     // or move the from here.
     out.close();
     rs.close();

 }

And then call it like this:
 ResultSet rs = stmt.executeQuery("SELECT a, b, c FROM TABLE2");
 printToFile( rs, "/some/file" );






If you use this function, be sure to change 

PrintStream out = new FileOutputStream(path); toPrintStream out = new PrintStream(new FileOutputStream(pat‌​h));