Write a simple to-do-item application in java. It should support the following features,

Add a to-do item
Delete a to-do item
View the to-do items
Description:
Make sure to structure your program in a modular way. In this case, that means you would have a command-line application which uses a class that holds the to-do items internally and provides public methods to add an item, delete an item, and provide the list of to-do items.

import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;

public class toDoList {

    private static List<String> currentList = new ArrayList<String>();

    public static void main(String[] args) {

        int menuItem = -1;
        while (menuItem != 0) {
            menuItem = menu();
            switch (menuItem) {
            case 1:
                showList();
                break;
            case 2:
                addItem();
                break;
            case 3:
                removeItem();
                break;
            case 0:
                break;
            default:
                System.out.println("Enter a valid option");
            }
        }
    }

    public static int menu() {
        System.out.println();
        System.out.println("----------------------");
        System.out.println("Main Menu");
        System.out.println("----------------------");
        System.out.println("0. Exit the program");
        System.out.println("1. Display to-do list");
        System.out.println("2. Add item to list");
        System.out.println("3. Remove item from list");
        System.out.println();
        System.out.print("Enter choice: ");
        int choice = sc.nextInt();
        return choice;
    }

    public static void showList() {
        System.out.println();
        System.out.println("----------------------");       
        System.out.println("To-Do List");
        System.out.println("----------------------");
        int number = 0;
        for (String item : currentList) {
            System.out.println(++number + " " + item);
        }
        System.out.println("----------------------");


    }

    public static void addItem() {
        System.out.println("Add Item");
        System.out.println("----------------------");
        System.out.print("Enter an item: ");
        Scanner sc = new Scanner(System.in);
        String item = sc.nextLine();
        currentList.add(item);
        showList();
    }

    public static void removeItem() {
        System.out.println("Remove Item");
        System.out.println("----------------------");
        Scanner sc = new Scanner(System.in);
        System.out.print("What do you want to remove?");
        int index = sc.nextInt();
        if((index-1)<0 || index>currentList.size()) {
            System.out.println("Wrong index number! Please enter in range of 1 to "+currentList.size());            
        }else {
            currentList.remove(index-1);
        }
        System.out.println("----------------------");
        showList();


    }
}