What are object data types in C#?

The object types can be assigned values of any other types, value types, reference types, predefined or user-defined types. However, before assigning values, it needs type conversion.

The Object Type is the ultimate base class for all data types in C# Common Type System (CTS). Object is an alias for System.Object class.

When a value type is converted to object type, it is called boxing and on the other hand, when an object type is converted to a value type, it is called unboxing.

The following is an example −

object obj; obj = 100; // this is boxing

Here is the complete example showing the usage of object data types −

Example

 Live Demo

using System; using System.IO; namespace Demo {    class objectClass {       public int x = 200;    }    class MyApplication {       static void Main() {          object obj;          obj = 50;          Console.WriteLine(obj);          Console.WriteLine(obj.GetType());          Console.WriteLine(obj.ToString());              obj = new objectClass();          objectClass newRef;          newRef = (objectClass)obj;          Console.WriteLine(newRef.x);       }    } }

Output

50 System.Int32 50 200