Java program to find the character that appears the most number of times in a String?

Question

So here\'s the code I\'ve got so far...

import java.util.Scanner;
class count{
    public static void main(String args[]){
        Scanner s=new Scanner(Syst         


        

Answer 1

I would do something like this

    String str = "yabbadabbadoo";
    Hashtable ht = new Hashtable() ;
    for (int x = 0; x < str.length(); x++) {
        Integer idx = (int) str.charAt(x);
        Integer got = ht.get(idx);
        if (got == null) {
            ht.put(idx, 1);
        } else {
            ht.put(idx, got.intValue() + 1);
        }
    }

    int max = 0;
    char ch = '-';
    Enumeration keys = ht.keys();
    while (keys.hasMoreElements()) {
        Integer idx = keys.nextElement();
        int count = ht.get(idx);
        if (count > max) {
            ch = (char) idx.intValue();
            max = count;
        }
    }

    System.out.print("[" + ch + "]");
    System.out.println(" Max " + max);

Keep in mind about upper and lower case characters