The Java Language Specification does not state an exact value for what toString returns or anything else that would let you derive an exact value, hence it is n

The Java Language Specification does not state an exact value for what toString returns or anything else that would let you derive an exact value, hence it is not provable: https://docs.oracle.com/javase/specs/jls/se8/html/jls-4.html#jls-4.3.2 https://docs.oracle.com/javase/specs/jls/se8/html/jls-4.html...