Can the memory address associated with a reference in programming be changed?

In C++, a reference after initialization cannot be changed to refer to another object or memory address. A reference is a constant 'alias' for an existing object, and it is always associated with the same address throughout its lifetime.

Example:

int a = 5;
int b = 10;
int& ref = a; // ref refers to a
ref = b;       // does not change the address of the reference, but assigns the value of b to a
// Now a == 10, but ref still refers to a

If you need the ability to change the object that a reference points to, you should use pointers, which can be redirected to different addresses.