4. C# - List

 Lists:

// are like array but flexible. arrays are fixed lengths while list can be flexible with adding and removing.


List Declaring:

List<dataType> variableName = new List<dataType>(); // initialize empty list

List<int> variableName = new List<int>{5,1,3,5,3}; // initializes a filled list


List Indexing:

// Same as array

listName[0];


List Methods:

Add() Method:

listVariable.Add(newValueToAdd); // adds a new value to the list at the end of the list


Count Method:

listVariable.Count; // returns the length of the list


Insert() Method:

listVariable.Insert(index, value); // inserts a value at a specified location, moving other values up/down to make space


Remove() Method:

listVariable.Remove(value); // removes the FIRST appearance of a value from the list


RemoveAt() Method:

listVariable.RemoveAt(index); // removes the value at the specified index


Contains() Method:

listVariable.Contains(valueToSearch); // returns true or false if found


Clear() Method:

listVariable.Clear(); // wipes a list

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