Question

Let A be a class with some members as x, y, z:

Class A {
  int x;
  int y;
  String z;
  ...
}

A is an Object so it inherits the “Equals” functions defined in Object.
What is the default behavior of this function? Does it check for the equality of members or does it check for reference equality?

Answer 1

The default implementation of Equals
supports reference equality for
reference types, and bitwise equality
for value types. Reference equality
means the object references that are
compared refer to the same object.
Bitwise equality means the objects
that are compared have the same binary
representation.

http://msdn.microsoft.com/en-us/library/bsc2ak47.aspx