Frequency of elements of an array GFG

 package com.company;

public class Array12_1 {
    public static void freq(int[] arr) {
        int n = arr.length;
        int count = 1;
        int res = 0 ;
        for (int i = 1; i < n; i++) {
            res = i;
            if (arr[i] == arr[i - 1]) {
                count++;
            } else {
                System.out.println(count);
                count = 1;
            }
        }
        if (n == 1 || res == n - 1) {
            System.out.println(count);
        }
    }

    public static void main(String[] args) {
        int[] array = {40,50,50,50};
        freq(array);
    }
}