EBK DATABASE SYSTEMS: DESIGN, IMPLEMENT
12th Edition
ISBN: 8220101450739
Author: Morris
Publisher: YUZU
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Chapter 9, Problem 4P
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About Tiny college:
Tiny college is a medium-sized educational institution that performs many
The intensive operations include student registration, academic administrations, inventory management and payroll operations.
Creating an
- In order to create an information system, initial database study needs to be performed to determine the objectives of the information system.
- The operations and processes of the Tiny College are studied in order to identify the opportunities, problems and constraints.
- Problems and constraints identified are being established in the form of precise definition.
- The definition obtained will help designer ensure that the design will improve the efficiency of Tiny College’s in terms of operations.
- Thus improving the operational efficiency will create new opportunity for the Tiny College by providing new services which will improve its position in terms of competitive analysis.
- Initial study to the database is made done, possible alternatives designs are provided to the end user.
- The end user will eventually choose the option that will be more appropriate for the college.
- Developing information system of this size will have different number of peoples involved in the design process.
- Thus there may likely possibilities of large number of peoples involved by providing opinions regarding the proposed
design and system features. - In order to develop an ideal system the designer must merge all the ideas and opinions that are provided to him...
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1. Create a Book record that implements the Comparable interface, comparing the
Book objects by year
- title: String
>
- author: String
- year: int
Book
+ compareTo(other Book: Book): int
+ toString(): String
Submit your source code on Canvas (Copy
your code to text box or upload.java file)
>
Comparable
2. Create a main method in Book record.
1) In the main method, create an array of 2 objects of Book with your choice of
title, author, and year.
2) Sort the array by year
3) Print the object. Override the toString in Book to match the example output:
@Javadoc Declaration Console X Properties
Book [Java Application] /Users/kuan/.p2/pool/plugins/org.eclipse.justj.openjdk.hotspo
[Book: year=1901, Book: year=2010]
Q5-The efficiency of a 200 KVA, single phase transformer is 98% when operating at full load 0.8
lagging p.f. the iron losses in the transformer is 2000 watt. Calculate the i) Full load copper losses ii)
half load copper losses and efficiency at half load. Ans: 1265.306 watt, 97.186%
Chapter 9 Solutions
EBK DATABASE SYSTEMS: DESIGN, IMPLEMENT
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