EBK JAVA PROGRAMMING
8th Edition
ISBN: 9781305480537
Author: FARRELL
Publisher: CENGAGE LEARNING - CONSIGNMENT
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Chapter 2, Problem 2RQ
Program Description Answer
“sector” is not a primitive datatype in Java.
Hence, the correct answer is option “D”.
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Write a complete Java program named FindSumAndAverage that performs the following tasks in 2-D array:
Main Method:
a. The main() method asks the user to provide the dimension n for a square matrix. A square matrix has an equal number of rows and columns.
b. The main() method receives the value of n and calls the matrixSetUp() method that creates a square matrix of size n and populates it randomly with integers between 1 and 9.
c. The main method then calls another method named printMatrix() to display the matrix in a matrix format.
d. The main method also calls a method named findSumAndAverage() which:
• Receives the generated matrix as input.
• Calculates the sum of all elements in the matrix.
• Calculates the average value of the elements in the matrix.
• Stores these values (sum and average) in a single-dimensional array and returns this array
• e. The main method prints the sum and average based on the result returned from findSumAndAverage()).
Enter the dimension n for the square…
The partial sums remain the same no matter what indexing we done to s
artial sum of each series
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the series or show
12. (1)+(0)+(0)+(+1)+
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18.
19. 1
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(三)+(三)-(三)+(3)
20 (9)-(0)-(0)--
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Repeating Decimals
64
Express each of the numbers in Exercises 23-30 as the m
integers.
23. 0.23 = 0.23 23 23...
24. 0.234 = 0.234 234 234.
25. 0.7 = 0.7777...
26. 0.d = 0.dddd...
where d is a digit
natio of own
s converges or
* 27. 0.06 = 0.06666..
28. 1.4141.414 414 414...
29. 1.24123 = 1.24 123 123 123...
30. 3.142857 = 3.142857 142857.
Using the ath-Term Test
In Exercises 31-38, use the ath-Term Test for divergence to show that
the series is divergent, or state that the test is inconclusive
8
CPS 2231 Computer Programming
Homework #3
Due Date: Posted on Canvas
1. Provide answers to the following Check Point Questions from our textbook (5 points):
a. How do you define a class? How do you define a class in Eclipse?
b. How do you declare an object's reference variable (Hint: object's reference variable
is the name of that object)?
c. How do you create an object?
d. What are the differences between constructors and regular methods?
e. Explain why we need classes and objects in Java programming.
2. Write the Account class. The UML diagram of the class is represented below (10 points):
Account
id: int = 0
- balance: double = 0
- annualInterestRate: double = 0.02
- dateCreated: java.util.Date
+ Account()
+
Account(id: int, balance: double)
+ getId(): int
+ setId(newId: int): void
+ getBalance(): double
+ setBalance(newBalance: double): void
+
getAnnualInterestRate(): double
+ setAnnualInterest Rate (newRate: double): void
+ toString(): String
+ getDataCreated(): java.util.Date
+…
Chapter 2 Solutions
EBK JAVA PROGRAMMING
Ch. 2 - Prob. 1RQCh. 2 - Prob. 2RQCh. 2 - Prob. 3RQCh. 2 - Prob. 4RQCh. 2 - Prob. 5RQCh. 2 - Prob. 6RQCh. 2 - Prob. 7RQCh. 2 - Prob. 8RQCh. 2 - Prob. 9RQCh. 2 - Prob. 10RQ
Ch. 2 - Prob. 11RQCh. 2 - Prob. 12RQCh. 2 - Prob. 13RQCh. 2 - Prob. 14RQCh. 2 - Prob. 15RQCh. 2 - Prob. 16RQCh. 2 - Prob. 17RQCh. 2 - Prob. 18RQCh. 2 - Prob. 19RQCh. 2 - Prob. 20RQCh. 2 - Prob. 1PECh. 2 - Prob. 2PECh. 2 - Prob. 4PECh. 2 - Prob. 5PECh. 2 - Prob. 6PECh. 2 - Prob. 7PECh. 2 - Prob. 8PECh. 2 - Prob. 9PECh. 2 - Prob. 10PECh. 2 - Prob. 11PECh. 2 - Prob. 12PECh. 2 - Prob. 1GZCh. 2 - Prob. 2GZCh. 2 - Prob. 1CPCh. 2 - Prob. 2CP
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