reading lines

[carlos123]

why doesnt this work i get null values any suggestions? thanks.

 
     if (event.getSource() == submit)
        {
           try {
        BufferedReader in = new BufferedReader(new FileReader("names.txt"));
       if (counter < 3)
       {
           namestring = in.readLine();
           System.out.println(namestring);
           namearray[a] = namestring;
             //namearray.add(a,namestring);
           counter++;
           a++;
        }
        else if (counter > 3)
        {
          idstring = in.readLine();
 
 
           idint = Integer.parseInt(idstring);
          //  idarray.add(b,idstring);
          idarray[b] = idint;
          counter++;
          b++;
        }
 
 
        in.close();
        for(int a = 0;  a< 3; a++)
        {
            System.out.println(namearray[a]);
        }
        for(int b = 0;  b< 3; b++)
        {
            System.out.println(idarray[b]);
        }
 

[JosAH]

What do you do when counter ==3?

kind regards,

Jos

[carlos123]

oh. thats an error. would i make the second one >2?

[JosAH]

oh. thats an error. would i make the second one >2?

If a number is *not* < 3 it is >= 3; < and >= are complementary; try it with a
couple of examples.

kind regards,

Jos

[carlos123]

the txt looks like this
greg
john
joe
54343
45777
33444

i run this program, and it displays

greg
greg
null
0
0
0

whats up? thanks.

 if (event.getSource() == submit)
        {
           try {
        BufferedReader in = new BufferedReader(new FileReader("names.txt"));
       if (counter <= 3)
       {
           namestring = in.readLine();
 
           namearray[a] = namestring;
             //namearray.add(a,namestring);
           counter++;
           a++;
        }
        else if (counter > 3)
        {
          idstring = in.readLine();
 
 
           idint = Integer.parseInt(idstring);
          //  idarray.add(b,idstring);
          idarray[b] = idint;
          counter++;
          b++;
        }
 
 
        in.close();
        for(int a = 0;  a< 3; a++)
        {
            System.out.println(namearray[a]);
        }
        for(int b = 0;  b< 3; b++)
        {
            System.out.println(idarray[b]);
        }
 
    } catch (IOException e) {
    }

[JosAH]

You do realize that you're opening a new BufferedReader everytime you press
that button don't you? A new BufferedReader starts reading from the start over
and over again.

kind regards,

Jos