How can if find the most repeated character and number ???

Question

Hi,
I have a question. For instance, if we have a text file which contains:
aaabbbhhhhhhtttttsjs12366
How can i find the most repeated character and number. I have to add this code to the following program:
I will aprreciate if you can help.
Regards,
Serkan
import java.io.*;
public class LineLen {
     public static void main(String args[]) throws Throwable {
          final String filename = "deneme1.txt";
          BufferedReader infile = new BufferedReader(new InputStreamReader(new FileInputStream(filename)));
          String line = infile.readLine();
          int linenum = 0;
          while (line != null) {
               int len = line.length();
               linenum++;
               System.out.print(linenum + "\t");
               for (int i = 0; i<len; i++)
               System.out.print("*");
               System.out.println("");
               line = infile.readLine();
}

Answer 1

For a small alphabet like English, array migt be used:
//in a for loop
++array[s.charAt(i)];For a big alphabet like chinese, HashMap might be barely used:
map.put(s.charAt(i), increment(map.get(s.charAt(i))));
// increment is a user defined method, possibly for an Integer object,
// that returns a new Integer object