Password Reset

import java.util.Scanner;

public class PasswordReset {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        String password = scanner.nextLine();
        String input;

        while (!"Done".equals(input = scanner.nextLine())) {

            String[] commands = input.split(" ");

            switch (commands[0]) {
                case "TakeOdd":
                    StringBuilder newPassword = new StringBuilder();

                    for (int i = 1; i < password.length(); i += 2) {
                        newPassword.append(password.charAt(i));
                    }
                    password = newPassword.toString();
                    System.out.println(password);
                    break;
                case "Cut":
                    int startIndex = Integer.parseInt(commands[1]);
                    int endIndex = startIndex + Integer.parseInt(commands[2]);
                    password = new StringBuilder(password)
                            .delete(startIndex, endIndex).toString();
                    System.out.println(password);
                    break;
                case "Substitute":
                    String substitute = commands[1];
                    String replacement = commands[2];

                    if (password.contains(substitute)) {
                        password = password.replace(substitute, replacement);
                        System.out.println(password);
                    } else {
                        System.out.println("Nothing to replace!");
                    }
                    break;
            }
        }
        System.out.println("Your password is: " + password);
    }

}


/*        String password = scanner.nextLine();
        String input = scanner.nextLine();

        while (!input.equals("Done")) {
            String[] substring = input.split("\\s+ ");
            String command = substring[0];

            switch (command) {
                case "TakeOdd":
                    String rawPassword = "";
                    for (int i = 1; i < password.length(); i += 2) {
                        rawPassword += password.charAt(i);
                    }
                    password = rawPassword;

                    System.out.println(password);
                    break;
                case "Cut":
                    int index = Integer.parseInt(substring[1]);
                    int length = Integer.parseInt(substring[2]);

                    String firstArg = password.substring(0, index);
                    String secondArg = password.substring(index + length);
                    password = firstArg + secondArg;

                    System.out.println(password);

                    break;
                case "Substitute":
                    String substitute = substring[1];
                    String replacement = substring[2];

                    if (password.contains(String.valueOf(substitute))) {
                        rawPassword = password.replaceAll(substitute, replacement);
                        password = rawPassword;
                        System.out.println(password);
                    } else {
                        System.out.println("Nothing to replace!");
                    }
                    break;
            }
            input = scanner.nextLine();
        }
        System.out.println("Your password is: " + " " + password);
    }
}