public static String makeCoding(String key, String word) {
        char[] arrOfKey = new char[key.length()];
        int[] arrOfIndex = new int[key.length()];

        for (int i = 0; i < arrOfKey.length; i++) {
            arrOfKey[i] = key.charAt(i);
            arrOfIndex[i] = i;
        }

        for (int i = 0; i < arrOfKey.length - 1; i++) {
            for (int j = 0; j < arrOfKey.length - 1 - i; j++) {
                if (arrOfKey[j] > arrOfKey[j + 1]) {

                    char tempChar = arrOfKey[j];
                    arrOfKey[j] = arrOfKey[j + 1];
                    arrOfKey[j + 1] = tempChar;

                    int tempIndex = arrOfIndex[j];
                    arrOfIndex[j] = arrOfIndex[j + 1];
                    arrOfIndex[j + 1] = tempIndex;
                }
            }
        }

        char[][] matrix = new char[word.length() / key.length() + 1][key.length()]; // двумерный массив
        int counter = 0;

        for(int i = 0; i < matrix.length; i++) {
            for(int j = 0; j < matrix[i].length; j++) {
                if(counter < word.length()) {
                    matrix[i][j] = word.charAt(counter);
                    counter++;
                }
                else {
                    matrix[i][j] = '0';
                }
            }
        }


        String outputstring = "";
        for (int col = 0; col < matrix[0].length; col++) {
            for (int row = 0; row < matrix.length; row++) {
                if(!(matrix[row][col] == '0')) {
                    outputstring += matrix[row][col];
                }
            }
        }

        return outputstring;
    }