Tech Blooms

The CLR requires each and every object must be derived from System.Object class. Also each and every class in .NET must have few set of methods.

I have created a class in 2 different ways, but both are same for CLR at the run time.

Class Student {

}

Class Student : System.Object {

}

System.Object has the following Public methods:

·         GetType - it returns the type of the current object. By using this method we can get all the metadata for the current object type. It’s a nonvirtual method, so we can’t override this method.

·         Equals – It returns true when the two objects have the same value.  We can override this method in our class if required.

Student _student = new Student();

_student.Name = "Rahul";

object objStudent = _student;

//Status of the object is true

bool objectStatus = _student.Equals(objStudent);

·         ToString - It returns the full name of the current object type (obj.GetType ().FullName). Also we can override this method in our class.

·         GetHashCode – This method return a value of the object in current instance. By default it returns a new value when we execute the application. But we can override this method to return a static value. This method is used to specify the keys in has table.

System.Object has the following Protected methods:

·         Finalize - This method id used by the Garbage Collector to clean the object.

·         MemberwiseClone - It returns a new instance of the current object. When this method is invoked, it creates a new instance and set the default instance value to its fields.

.NET .NET