Text Processing - Digit, letter or word

package com.company;


import java.util.*;
import java.util.stream.Collectors;

public class Main {

    public static void main(String[] args) {

        Scanner scanner = new Scanner(System.in);

        String input = scanner.nextLine();
        StringBuilder digits = new StringBuilder();
        StringBuilder letters = new StringBuilder();
        StringBuilder other = new StringBuilder();
        for (int i = 0; i < input.length(); i++) {
            char currentChar = input.charAt(i);
            if (Character.isDigit(currentChar)) {
                digits.append(currentChar);
            } else if (Character.isLetter(currentChar)) {
                letters.append(currentChar);
            } else {
                other.append(currentChar);
            }
        }
        System.out.println(digits);
        System.out.println(letters);
        System.out.println(other);


    }


}