RGrun

package com.company;

import java.util.*;

public class Main {

    public static void main(String[] args) {

        ArrayList<ArrayList<Object>> masterList = new ArrayList<>();

RGrun

 public static void main(String[] args) {

        char[] aArray = {'a', 'a', 'a', 'a', 'a'};
        char[] bArray = {'b', 'b', 'b'};
        char[] cArray = {'c', 'c'};
        char[][] combinedList = {aArray, bArray, cArray};

        TreeMap<Character, Integer> map = new TreeMap<>();
        StringBuilder builder = new StringBuilder();