Java 插曲 xxx => x儿x儿x儿

小插曲：朋友发微信，总是加个"儿"

package com.company;

import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        while (true) {
            Scanner scanner = new Scanner(System.in);
            StringBuilder stringBuilder = new StringBuilder();

            if (scanner.hasNextLine()) {
                String line = scanner.nextLine();
                char[] chars = line.toCharArray();

                for (int i = 0; i < chars.length; i++) {
                    stringBuilder.append(chars[i]);
                    stringBuilder.append("儿");
                }
            }
            System.out.println(stringBuilder.toString());
        }
    }
}