There are different ways to express this:
A is A- This is the simplest way to express it, in English.A = A- This is a little ambiguous. It seems like we're assigning A to itself. The end result is that A is still A.A == A- In many programming languages, this will evaluate if A is the same as A.!!( A === A )- In JavaScript, if you're particularly paranoid, this will check if A is A.MOV A, A- In Z80 Assembly, assign whatever is in the A register to the A register.A.equals(A)- In Java,Aresponds toequals(), if it descends fromObject. This is useful in Java because object references may or may not point to the same thing (although in this case, it must because, according to the Java Language Specification, Chapter 5, a given ClassLoader shall load a class only once and thus will always give you the same Class for any given fully qualified name).