Buffered Writer Problem

Question

     public static void createTable1()
          BufferedWriter out = null;
          try{
               out= new BufferedWriter(new FileWriter("c:\\Table1.txt"));          
          }catch(Exception e){e.printStackTrace();}
          // Generate 5 * 200,000 numbers randomly between
          // 100,000 and 300,000
          int rows = 200000;
          int cols = 5;
          int myTable1 [][] = new int[rows][cols];
          try{
          for(int i = 0; i <200000; i++)
               for(int j = 0; j < 5; j++)
myTable1[i][j] = new RandNumGen().getRandomRange(100000,300000);          
               out.write(myTable1[i][j]);
               out.newLine();
          }catch(Exception e){e.printStackTrace();}               
     }I am trying to write to a file about 200,000 rows and 5 cols .. There are no compilation errors.. I cant open the file and see it though.. I waited for 15 minutes... shld I wait longer? Is something not okay with my code?

Answer 1

1- you should not wait for this much time, the only problem can be there in new RandNumGen().getRandomRange( 100000, 300000 );
2- Your output will not be 'ints' rather those will be characters. BufferedWriter writes after casting int into char.
Try following:
  public static void main( String[] argv ) {
      PrintWriter out = null;
      try {
         out = new PrintWriter( new FileOutputStream( "c:\\Table1.txt" ) );
         // Generate 5 * 200,000 numbers randomly between
         // 100,000 and 300,000
         int rows = 200000;
         int cols = 5;
         int myTable1[][] = new int[rows][cols];
         System.out.println( "Writing ..." );
         for( int i = 0; i < 200000; i++ ) {
            for( int j = 0; j < 5; j++ ) {
               myTable1[i][j] = new RandNumGen().getRandomRange( 100000, 300000 );
               out.print( myTable1[i][j] );
               out.print( "\t" );
            out.println();
      } catch( Exception e ) {
         e.printStackTrace( System.out );
      } finally {
         if( out != null ) {
            out.flush();
            out.close();
   private static class RandNumGen {
      int getRandomRange( int x, int y ) {
         return( int ) ( Math.random() * y );
   }Regards,
Humayun