How do I obtain an ID that allows me to tell difference instances of a class apart?

Question

Imagine I have a single class, with two instances:

MyClass a = new MyClass();
MyClass b = new MyClass();

MyClass has a method PrintUniqueInstan

Answer 1

Could potentially use:

ClassName + MethodName + this.GetHashCode();

Although GetHashCode() does not guarantee a unique value, if its paired with the class name and method name, the likelihood of a clash reduces.

Even if there is a clash, the only effect will be that it generates more warnings in the logs, which isn't a big deal.