What's difference between New and Override keyword ?

This is a very general question difference between new and override keyword ? Everyone knows the answer but still everyone has doubts while explaining : Let me explain you :

New :  New hides the base class function. What exactly it means ? : They're two entirely separate methods ( one in base class another one is in derived class) which happen to have the same name, rather than the derived method overriding the base method.

e.g :
If we make a virtual method in base class and override it using new keyword in child class then while creating object of derived class with reference to base class like :

public class BaseTest
{
    public virtual void SomeMethod()
    {
        Console.WriteLine("Inside Base Class");
    }


}





                                                                                                  public class NewTest : BaseTest
 {

    public new void SomeMethod()
    {
        Console.WriteLine("Inside New Derived Class");
    }
 } 
 
 public class OverrideTest : BaseTest
 {

    public override void SomeMethod()
    {
        Console.WriteLine("Inside override Derived Class");
    }
 } 

BaseTest obj = new NewTest();
//It calls the base class method.
obj.SomeMethod();
//Output should be Inside Base Class

Override : Overrides the base class behavior. While implementing a virtual method with override keyword in child class. We override it's own behavior.

BaseTest obj = new OverrideTest();
//It calls the derived class method.
obj.SomeMethod();
//Output should be Inside override Derived Class

Saurabh Singh
http://tech-giant.blogspot.com