Creating an array without a predefined size?

[thieflock]

I know I need to define an array size before the variables unless I use method(dataType...arrayName), I just need someone to help me with the concept. I have a JOptionPane.showInputDialog that asks for x number of integers. I need to convert the string to integers and create a method that will take these integers and store them in an array. Please do not tell me to use ArrayList because I am basically supposed to create those same methods myself. And please do not tell me to use LinkedNodes because again I am not allowed to do this. There is no need to show me any code but if you can give me some ideas about how to do this I would be very grateful. It have been bothering me since last night.

[keller]

Do you need to create the array before you process the string? If you don't then just get the string length and use that to initialize the array.

[keller]

Does this help?

public class Test
{

   int[] test;
   public String in;
   
   public Test(String input)
   {
      in = input;
      int y = in.length();
      test = new int[y];
      for (int i = 0; i < in.length(); i++)
      {
         test[i] = Integer.parseInt(String.valueOf(in.charAt(i)));
      }
      for (int x=0; x<test.length; x++)
      {
         System.out.println(test[x]);  
      }
   }
   
}