JAVA PROGRAM(LL)+MINDTAP (1 TERM) V2.0
9th Edition
ISBN: 9780357616673
Author: FARRELL
Publisher: CENGAGE L
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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).
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.
1. Create a program class, TestFrame, that contains a main() to test and use the above class. This process should contain methods as follows:
main(): This method should:
1. Call makeFrame() to get the inputs and create a Frame object.
2. Call calcCost() to determine the cost of the picture.
3. Display the cost of the picture along with the attribute values.
4. Ask the user if he/she wants another picture.
5. If the answer is No, display the total cost of the picture
6. If the answer is Yes, implement steps 1 and 2 again (without a loop), then display:
● the number of frames created (through a variable)
• total cost of the picture(s), and
• average picture cost.
6. The program should then end.
Class methods: makeFrame() A function to prompt the user for inputs and accept the four (4) input values needed to create an instance of a
Frame. It instantiates a Frame object and returns the object to the calling method.
follows:
calcCost() This function has a Frame object as its formal argument…
Chapter 1 Solutions
JAVA PROGRAM(LL)+MINDTAP (1 TERM) V2.0
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
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