EBK JAVA PROGRAMMING
9th Edition
ISBN: 9781337671385
Author: FARRELL
Publisher: CENGAGE LEARNING - CONSIGNMENT
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Chapter 1, Problem 2PE
Explanation of Solution
Naming conventions:
It is the set of rules used for choosing the character sequence of identifier name. The naming conventions denote variables, methods, classes, and constants.
Naming conventions for method name:
- Naming conventions for method are:
- If the name of the method consists of multiple words, join them into one.
- Make the first letter as lowercase and capitalize the first letter of each sub word.
- Examples: “numberOfPassmarks”, “calculateMarks()”, etc.
| Method Identifiers | a | b | c | ||
| Legal | Conventional | Legal | Unconventional | Illegal | |
| associationRules() | Yes | Yes | |||
| void() | Yes, the method identifier is illegal, since “void” is keyword | ||||
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QUESTION 11
Given the following method header
public void someMethod ( float x, boolean y, boolean z)
what is the signature of this method?
For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac).
Create a project in JAVA name "Supermarket Management System" Project should include:1. Authentication or login using credentials with new user signup2. Loop3. Method4. Arrays5. Encapsulation6. Inheritance7. Polymorphism8. Abstract class9. Interface10. File11. Exception
12. Frontend: JAVA GUI13. Backend: Eclipse14. Database: Mysql15. JAVA GUI using Swing. (You should not use JavaFX)
NB: Project should be created in eclipse
Read each step below and write a program using an IDE or text editor.
31-32. Create a class named MyAccount. This class should have the main method with a
welcome message, "Welcome to my account".
33-34. Create an enum and name it as Account.
35-36. Inside the implementation of enum, create three constants named, PREMIUM(10),
GOLD (7), and BASIC(3).
37-38. Create an int member variable inside the enum named discount and set its access
modifier to private.
39-40. Inside the main method, create a variable named dis with a data type Account.
41-42. Create the constructor of enum with parameter int discounted.
43-44. Inside the constructor, assign discounted to discount. Create a public method
named getDiscount(), set its return type to int and return discount.
45-46. In the main method, assign PREMIUM to dis using the Account enum
47-48. Print the discount using the getDiscount() method.
49-50. Concatenate "%" to getDiscount() method.
Chapter 1 Solutions
EBK JAVA PROGRAMMING
Ch. 1 - Prob. 1RQCh. 1 - Prob. 2RQCh. 1 - Prob. 3RQCh. 1 - Prob. 4RQCh. 1 - Prob. 5RQCh. 1 - Prob. 6RQCh. 1 - Prob. 7RQCh. 1 - Prob. 8RQCh. 1 - Prob. 9RQCh. 1 - Prob. 10RQ
Ch. 1 - Prob. 11RQCh. 1 - Prob. 12RQCh. 1 - Prob. 13RQCh. 1 - Prob. 14RQCh. 1 - Prob. 15RQCh. 1 - Prob. 16RQCh. 1 - Prob. 17RQCh. 1 - Prob. 18RQCh. 1 - Prob. 19RQCh. 1 - Prob. 20RQCh. 1 - Prob. 1PECh. 1 - Prob. 2PECh. 1 - Prob. 3PECh. 1 - Prob. 4PECh. 1 - Prob. 5PECh. 1 - Prob. 6PECh. 1 - Prob. 7PECh. 1 - Prob. 8PECh. 1 - Prob. 9PECh. 1 - Prob. 10PECh. 1 - Prob. 11PECh. 1 - Prob. 12PECh. 1 - Prob. 1DECh. 1 - Prob. 1GZCh. 1 - Prob. 1CPCh. 1 - Prob. 2CP
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