Java How To Program (Early Objects) (10th Edition)
10th Edition
ISBN: 9780133807806
Author: Paul J. Deitel, Harvey Deitel
Publisher: PEARSON
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Chapter 1, Problem 2MD
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Body Mass Index calculator
- It is a simple calculation using a person’s height and weight.
- The formula for calculating body mass index is
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Case study:
Students and staff purchase ready to eat snack-foods such as chocolate bars, cookies, chips, drinks, etc. using an automated vending machine. Each snack-item has a price and a name.
Any customer can buy an item, using funds available on the university identity card to pay for it. Cash payments are not allowed. The vending machine has a card reader. Customers tap their ID card against the card-reader. The card-reader reads the card and stores its details for the duration of the interaction. After the card is verified, the customer may choose the snack item and opt to buy it. The vending machine will verify that there is sufficient balance on the card to pay for the item and automatically deducts the amount towards the purchase of the snack-item if sufficient funds are available. The customer can buy as many items as they’d like.
Task: Draw a sequence diagram depicting a successful sale scenario for the case study described above.
Programming Language: use Python please
Entered
Answer Preview
Result
Message
correct
(923,998)
(923,998)
(2398,2171)
(2398, 2171)
correct
(2,808)
(2,808)
Your answer isn't a number
incorrect
(it looks like a list of numbers)
At least one of the answers above is NOT correct.
(1 point) Consider the elliptic curve group based on the equation
y²
= x + ax + b
x3
mod p
where a =
2440, b = 295, and p
=
3391.
We will use these values as the parameters for a session of Elliptic Curve Diffie-Hellman Key Exchange. We
will use P = (2, 808) as a subgroup generator.
You may want to use mathematical software to help with the computations, such as the Sage Cell Server
(SCS).
On the SCS you can construct this group as:
G=Elliptic Curve (GF(3391), [2440,295])
Here is a working example.
(Note that the output on SCS is in the form of homogeneous coordinates. If you do not care about the details
simply ignore the 3rd coordinate of output.)
Alice selects the private key 18 and Bob selects the private key 15.
What is A, the public key of Alice?…
Chapter 1 Solutions
Java How To Program (Early Objects) (10th Edition)
Ch. 1 - Computers process data under the control of sets...Ch. 1 - Prob. 1.2SRECh. 1 - Prob. 1.3SRECh. 1 - The programs that translate high-level language...Ch. 1 - Prob. 1.5SRECh. 1 - software is generally feature complete,...Ch. 1 - Prob. 1.7SRECh. 1 - Prob. 2.1SRECh. 1 - The command from the JDK compiles a Java program.Ch. 1 - A Java source code file must end with thefile...
Ch. 1 - When a Java program is compiled, the file produced...Ch. 1 - The file produced by the Java compiler...Ch. 1 - Prob. 3.1SRECh. 1 - Java programmers concentrate on creating, which...Ch. 1 - Prob. 3.3SRECh. 1 - A new class of objects can be created conveniently...Ch. 1 - is a graphical language that allows people who...Ch. 1 - The size, shape, color and weight of an object are...Ch. 1 - Prob. 1.1ECh. 1 - Prob. 1.2ECh. 1 - Prob. 1.3ECh. 1 - Prob. 1.4ECh. 1 - Prob. 1.5ECh. 1 - Prob. 1.6ECh. 1 - Prob. 1.7ECh. 1 - languages are most convenient to the programmer...Ch. 1 - The only language a computer can directly...Ch. 1 - Prob. 1.10ECh. 1 - Theprogramming language is now used to develop...Ch. 1 - initially became widely known as the development...Ch. 1 - Prob. 2.3ECh. 1 - Theprogramming language was developed by Bjarne...Ch. 1 - Java programs normally go through five...Ch. 1 - Prob. 3.2ECh. 1 - Prob. 3.3ECh. 1 - A(n)is a software application that simulates a...Ch. 1 - Thetakes the .class files containing the programs...Ch. 1 - Prob. 3.6ECh. 1 - Explain the two compilation phases of Java...Ch. 1 - Prob. 5ECh. 1 - Prob. 1MDCh. 1 - Prob. 2MDCh. 1 - (Attributes of Hybrid Vehicles) In this chapter...Ch. 1 - Prob. 4MD
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