What is DIFFERENCE?

Question

v1 passed, while v2 not..
Why?
What is DIFFERENCE in both?
And why in v1, constructor is called only once?
https://code.sololearn.com/crQYgPc6bDqW/?ref=app
https://code.sololearn.com/cLtKuzG49sp6/?ref=app

Answer 1

Aysha what does ur explanation for v1 mean?
I didn't get it....

Also i have modified v1 now tell me what's the solution?