EBK JAVA HOW TO PROGRAM, LATE OBJECTS
11th Edition
ISBN: 9780134763507
Author: Deitel
Publisher: VST
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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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Briefly explain passing by reference
Context: Measuring Air Quality
Levels of various air borne pollutants such as Nitrogen Monoxide (NO), Nitrogen Dioxide (NO2) and particulate matter (also called particle pollution) are all major contributors to the measure of overall air quality.
For instance, NO2 is measured using micrograms in each cubic metre of air (㎍/m3). A microgram (㎍) is one millionth of a gram. A concentration of 1 ㎍/m3 means that one cubic metre of air contains one microgram of pollutant.
To protect our health, the UK Government sets two air quality objectives for NO2 in their Air Quality Strategy
The hourly objective, which is the concentration of NO2 in the air, averaged over a period of one hour.
The annual objective, which is the concentration of NO2 in the air, averaged over a period of a year.
The following table shows the colour encoding and the levels for Objective 1 above, the mean hourly ratio, adopted in the UK.
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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.
Chapter 1 Solutions
EBK JAVA HOW TO PROGRAM, LATE OBJECTS
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. 4MDCh. 1 - Prob. 5MDCh. 1 - Prob. 6MDCh. 1 - Prob. 7MD
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