What is the difference between .Equals and == [duplicate]

Answer 1

One significant difference between them is that == is a static binary operator that works on two instances of a type whereas Equals is an instance method. The reason this matters is that you can do this:

Foo foo = new Foo()
Foo foo2 = null;
foo2 == foo;

But you cannot do this without throwing a NullReferenceException:

Foo foo = new Foo()
Foo foo2 = null;
foo2.Equals(foo);