That is a corqet tool it is used for fixing tires
Answer:
a. Object cannot be converted to Person
Explanation:
This program demonstrates polymorphism.
e.g., a Student IS a Person therefore you can call m() with a Student as well as a Person object.
The same goes for GraduateStudent.
However, and Object is not a Person, so the last call fails. This can be deducted by the type checking that happens at compile time.
Its called a genesis program
Answer:
A database is an organized collection of structured information, or data, typically stored electronically in a computer system.
Answer:
Is it a tool in the computer, pls make it clear