Buffered Reader or String Buffer size.

Question

Hi.
Is it possible to limit the size of a Buffered Reader input from the keyboard to a specific number? how would one go about it?

Answer 1

I would like to limit the size of the buffered reader to ensure a minimum or maxim number of input is put in. I tried using the ensureCapacity class but there seems to be a problem in calling the class. the code is below
import java.io.*;
import java.awt.*;
public class getUserString {
     public static void main (String [] args) throws Exception {
          int levl, x, load;
          String s1, s2;
          String input = " ";
          StringBuffer buf = new StringBuffer();
          System.out.println ("Enter a string of at least 4 characters");
          System.out.println ("Please do not enter a character more than once");
          BufferedReader mark = new BufferedReader(new InputStreamReader(System.in));
          mark.ensureCapacity(4);
          try{
               s1 = mark.readLine();
               System.out.println ("These are the characters you have entered: " + s1);
          catch(IOException e) {
                e.printStackTrace();
}