Question

Assume that the Measurable interface is defined with a static sum method that computes the sum of the Measurable objects passed in as an array, and that BankAccount implements the Measurableinterface. Also assume that there is a variable branchAccounts that is an object reference to a populated array of BankAccount objects for a bank branch. Which of the following represents a correct invocation of the sum method to find the total balance of all accounts at the branch?
A) Arrays.sum(branchAccounts)
B) Measurable.sum(branchAccounts)
C) BankAccount.sum(branchAccounts)
D) branchAccounts.sum()

Answer 1

Answer:

B) Measurable.sum (branchAccounts)

Explanation:

The user interface which can be built by adding components to a panel. The sum method that will be used to find total balance of all accounts at branch is measurable.sum, this will layout the sum of specified branch account total. The measurable interface implements public class bank account as measurable sum.