JavaArrayList_1

package com.cieslin;

import java.util.Scanner;

public class Main {
    private static Scanner scanner = new Scanner(System.in);
    private static GroceryList groceryList = new GroceryList();
    public static void main(String[] args) {
        groceryList.addGroceryItem("Bread");
        groceryList.addGroceryItem("Cheess");
        groceryList.addGroceryItem("Milk");
        groceryList.printGroceryList();
        groceryList.addGroceryItem("Egg");
        groceryList.printGroceryList();
        groceryList.modifyGroceryItem(1, "Water");
        System.out.println(groceryList.findItem("Egg"));
        groceryList.printGroceryList();
        groceryList.removeGroceryItem(1);
        groceryList.removeGroceryItem(2);
        groceryList.printGroceryList();
        groceryList.removeGroceryItem(1);
        groceryList.printGroceryList();

    }
}
/////////////////////////////////////////////////////////////////////////////////////////////////////
package com.cieslin;

import java.util.ArrayList;

public class GroceryList {
    private ArrayList<String> groceryList = new ArrayList<String>();

    public void addGroceryItem(String item){
        groceryList.add(item);
    }

    public void printGroceryList(){
        System.out.println("You have " + groceryList.size() + " items in your grocery list");
        for(int i = 0; i < groceryList.size(); i++)
            System.out.println((i+1) + ". " + groceryList.get(i));
    }

    public void modifyGroceryItem(int position, String newItem){
        groceryList.set(position, newItem);
    }

    public void removeGroceryItem(int position){
        groceryList.remove(position-1);
    }

    public String findItem(String searchItem){
        //boolean exists = groceryList.contains(searchItem);
        int position = groceryList.indexOf(searchItem);
        if(position >= 0)
            return groceryList.get(position);
        return null;

    }

}