Why doesnt this logical tile loading system not work as I a begginer expect it to and many others for that matter?

Hello This is for a Java game

Why does this system only draw portions of tiles, it looks as if it only ever iterates a couple times
and doesn't iterate to load the entire map even though my txt file images\map.txt has something like.

1 1 1 1 1 1 1 2 2 2 1 1 3 4 1 1 1 1 2 3 ect.

please take a look at the sample.jpg I,ve attached.

I don't understand Ive spent a couple days now trying to load a full map.

This is my method of loading a java game map at run time.
Please help Thankyou.

Code :

 private void load() throws FileNotFoundException
                                                                    {
                                                                      Scanner coords_scanner = new Scanner(new File("txt\\hud_map.txt")) ;
 
 
                                                                                while(coords_scanner.hasNextInt())
                                                                                {
                                                                                  int i = 0 ;  
 
                                                                                  for(i = 0; i < 100; i++)
                                                                                  {
                                                                                       switch(coords_scanner.nextInt())
                                                                                       {                                                                                                  
                                                                                           case 1 :
                                                                                                    draw_x_coords[i] +=  70 ;  // horizontal tile
                                                                                           break ;
                                                                                           case 2 :
                                                                                                   draw_y_coords[i] += 70 ;   // vertical tile
                                                                                           break ;
                                                                                           case 3 :
                                                                                                   draw_x_coords[i] += 140 ; // horizontal space
                                                                                           break ;
                                                                                           case 4 :
                                                                                                   draw_y_coords[i] += 140 ; // veritcal space
                                                                                           break ;
                                                                                       }
                                                                                  }
                                                                               }
                                                                    }

Code :

 for(int i = 0; i < draw_x_coords.length ; i++)
                                                {
 
 
                                                    g2d.drawImage(METAL_TILE,draw_x_coords[i],draw_y_coords[i],70,70,null) ;
 
                                                }