Vehicle avehicle = new auto(); avehicle. moveforward(200); assume that the auto class inherits from the vehicle class, and both classes have an implementation of the moveforward method with the same set of parameters and the same return type. what determines which class's moveforward method is to be executed? a. the actual object type. b. the variable's type. c. the hierarchy of the classes. d. it is not possible to determine which method is executed.

Write a method named addall that could be placed inside the hashintset class. this method accepts another hashintset as a parameter and adds all elements from that set into the current set, if they are not already present. for example, if a set s1 contains [1, 2, 3] and another set s2 contains [1, 7, 3, 9], the call of s1.addall(s2); would change s1 to store [1, 2, 3, 7, 9] in some order. you are allowed to call methods on your set and/or the other set. do not modify the set passed in. this method should run in o(n) time where n is the number of elements in the parameter set passed in.

When is it appropriate to use an absolute reference

Fall protection, confined space entry procedures, controlled noise levels, and protection from chemical hazards are some of the things that contribute to a safe what