Add and remove

Learn methods to add and remove items from the list.

Adding an Item to the Inventory

The Add method of a List<T> collection appends a new element to the list. You can use this method to store new Item objects in the inventory. Grouping the operation inside a separate method keeps inventory management organized.

items.Add(item);

Removing an Item from the Inventory

The Remove method removes the specified object from the collection if it is found in the list. It returns a bool value indicating whether the object was found and removed. RemoveAt can be used to remove an element at a specified index.

bool removed = items.Remove(item);

Exercise Write Add and Remove Methods

Assume that the InventoryManager class contains a list of Item objects. The AddItem method should append the received object to the list. The RemoveItem method should attempt to remove the received object from the list.

Show example solution

using System.Collections.Generic;

public class InventoryManager
{
    private List<Item> inventory = new List<Item>();

    public void AddItem(Item item)
    {
        inventory.Add(item);
    }

    public void RemoveItem(Item item)
    {
        inventory.Remove(item);
    }
}

Test yourself

Which method is called to append an Item object to the list?
- Sort()
- Add()
- RemoveAt()
- Clear()
Show answer

Add() — The Add method appends a new element to the collection.

Removing an Object from a List

Bir listedeki belirli Item nesnesini kaldırmak için ____ metodu kullanılır.

Show answer

Bir listedeki belirli Item nesnesini kaldırmak için Remove metodu kullanılır.

Match List Methods

Add(item)

Appends new object to collection
Remove(item)

Removes specified object from collection
RemoveAt(index)

Removes element at given index
Clear()

Removes all elements from collection

Next lesson: Printing the inventory

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