Map exercise

import java.util.*;

public class exercises_Map {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);

        String input = scan.nextLine();
        Map<Character, Integer> counter = new LinkedHashMap<>();

        for(char currChar : input.toCharArray()){
            if(currChar != ' ') {
                if (!counter.containsKey(currChar)) {
                    counter.put(currChar, 1);
                } else {
                    int br = counter.get(currChar);
                    counter.put(currChar, br + 1);
                }
            }
        }

        for(Map.Entry<Character, Integer> entry: counter.entrySet()){
            System.out.printf("%c -> %d%n", entry.getKey(), entry.getValue());
        }
     }
}

/*
Write a program that counts all characters in a string except space (' ').

Print all occurrences in the following format:

"{char} -> {occurrences}"
*/