Computers and Technology, 19.02.2020 01:49 raymondmancilla123
Create a class Cola Vending Machine. This class is simulating a cola vending machine. It keeps track of how many cola bottles are in the class and how much one bottle costs. There should be a method sell Bottle which sells one bottle to a customer, decreases the amount of bottles left. There also is a method restock which sets the number of bottles to the number it is restocked to. Write a main method to test the functionality of the Cola Vending Machine machine.
Answers: 3
Computers and Technology, 22.06.2019 17:00, smartoa
Annie is creating a corporate report for a company’s annual meeting. in the report, she wants to add the signature of various department heads. which device can annie use to capture signatures to include in the report? a. printer b. monitor c. e-reader d. digitizing tablet
Answers: 1
Computers and Technology, 23.06.2019 10:20, chonawilson4
Suppose there is a relation r(a, b, c) with a b+-tree index with search keys (a, b).1. what is the worst-case cost of finding records satisfying 10 < a < 50 using this index, in terms of the number of records n1, retrieved and the height h of the tree? 2. what is the worst-case cost of finding records satisfying 10 < a < 50 and 5 < b < 10 using this index, in terms of the number of records n2 that satisfy this selection, as well as n1 and h defined above? 3. under what conditions on n1 and n2, would the index be an efficient way of finding records satisfying the condition from part (2)?
Answers: 1
Create a class Cola Vending Machine. This class is simulating a cola vending machine. It keeps track...
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