Count Chars in a String

package JavaFundamentals.MapsLambdaStreamAPI;

import java.util.LinkedHashMap;
import java.util.Map;
import java.util.Scanner;
import java.util.stream.Collectors;

public class CountCharsInAString01 {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String text = scanner.nextLine();
        text = text.replaceAll(" ", "");
        Map<String, Long> second = new LinkedHashMap<>(text.chars().mapToObj(i -> (char) i)
                .collect(Collectors.groupingBy(Object::toString, Collectors.counting())));
        for (Map.Entry<String, Long> entry : second.entrySet()) {
            System.out.printf("%s -> %d%n", entry.getKey(), entry.getValue());
        }

    }
}