How to Cast a Vector to Vector in Java?

Question

I am using JComboBox with a custom class object, and the equals method is over-ridden, and integrated very deeply into the code.

The problem is that if two objects are e

Answer 1

No, not without being type-unsafe. But you can cast Vector to Vector though which should solve your problem.

Since Clas_2 is a parent class of Clas_1, anything you get from a Vector is an instance of Clas_2, but you cannot add any Clas_2 to a Vector since not all instances of of Clas_2 are instances of Clas_1. The extends syntax makes that distinction.