Weapon w = new Weapon (42); Is that correct? [duplicate]

Had this question in a programming test Consider the Abstract class Weapon. Does the line of code below display any errors? Justify your answer.

Weapon w = new Weapon(42);

This is my answer and the teacher did not consider anything yes, it can not have value inside Weapon

The correct one would be like down here /

Weapon w = new Weapon( );