vault backup: 2023-11-23 09:48:36

Prog/Collections.md

@@ -1,3 +1,6 @@
+<center><img src="https://i.imgur.com/UWw1g20.png" /></center>
+
+## System Collections
 We have 3 collections namespace in C#
 - System.Collections
 	- Store items as Object
@@ -13,4 +16,34 @@ We have 3 collections namespace in C#
 	- Dictionary<TKey,TValue>
 - System.Collections.Concurrent
 	- As previous bu thread safe
-- 
+
+## Live coding
+```csharp
+namespace Lecture;
+public static class Program {
+	public static void Main() {
+		var myList = new List<int>();
+		myList.Add(12);
+		myList.Add(23);
+		myList.Add(122);
+		myList.Add(312);
+		myList.Add(142);
+		
+		myList[4] = 1;
+		
+		int a = myList[5];
+		
+		Console.WriteLine($"{myList}"); // Will return the type of the list and the value
+		Console.WriteLine(a); // Will return the value a (myList[5])
+		foreach (var element in myList) {
+			Console.WriteLine($"{element}");
+		} // Will display each element of the list
+		myList.ForEach(x => Console.WriteLine($"{x}")); // Same thing that foreach bellow
+		
+		var t = myList.GetRange(3, 2);
+		t.ForEach(x => Console.WriteLine($"{x}"));
+		myList.sort();
+		myList.
+	}
+
+}