Starting Out with Java: Early Objects (6th Edition)
6th Edition
ISBN: 9780134462011
Author: Tony Gaddis
Publisher: PEARSON
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Question
Chapter 7, Problem 21PC
Program Plan Intro
Lo Shu Magic Square
Program Plan:
- Import the required packages.
- Declare the class “Main”.
- Declare the “main ()” method.
- Declare two 2-Dimensional arrays.
- Call the function “show_Array ()” to display the array.
- Call the function “show_Result ()” to display the result.
- Give function definition for “show_Result ()”.
- Check if the square is a magic square by calling the function “isMagicSquare ()”.
- If yes, then print the positive message.
- Else,
- Print the negative message.
- Check if the square is a magic square by calling the function “isMagicSquare ()”.
- Give function definition for “show_Array ()” to display the array.
- Using nested “for” loops, print the values of the array.
- Give function definition for “isMagicSquare ()”.
- Declare a Boolean variable.
- Call the function “check_Range ()”, “checkUnique ()”, “checkRowSum ()”, “check_ColSum ()”, and “check_DiagSum ()”.
- Check the condition “is_InRange && is_Unique && is_EqualRows &&is_EqualCols && is_EqualDiag”.
- Assign “true” to the Boolean variable.
- Return the variable.
- Give function definition for “check_Range ()”.
- Declare required variables.
- Using nested “for” loops, check the condition “array[row][col] < MIN || array[row][col] > MAX”.
- Assign “false” to the Boolean variable.
- Return the variable.
- Give function definition for “check_Unique ()”.
- Declare required variables.
- Using the while condition “searchValue <= MAX && status == true”.
- Using nested “for” loops,
- Check the condition “array[row][col] == searchValue”,
- Increment the counter variable.
- Check if count value is greater than 1.
- Assign “false” to the Boolean variable.
- Check the condition “array[row][col] == searchValue”,
- Increment the variable “searchValue”.
- Assign 0 to the counter variable.
- Using nested “for” loops,
- Return the status.
- Give function definition for “check_RowSum ()”.
- Declare a variable.
- Calculate the sum of 1st row, 2nd row and 3rd row.
- Check if all the values are not equal to each other.
- Assign “false” to the Boolean variable.
- Return the variable.
- Give function definition for “check_ColSum ()”.
- Declare a variable.
- Calculate the sum of 1st column, 2nd column and 3rd column.
- Check if all the values are not equal to each other.
- Assign “false” to the Boolean variable.
- Return the variable.
- Give function definition for “check_DiagSum ()”.
- Declare a variable.
- Calculate the sum of 1st diagonal, and 2nd diagonal.
- Check if all the values are not equal to each other.
- Assign “false” to the Boolean variable.
- Return the variable.
- Declare the “main ()” method.
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in C#
2D arrays (matrices/grids)
Write a program that takes 20 student objects and stores them in an array.
Each Student object should have a first name and a last name.
Sort the array by student’s last name. You can use any of the sorts you have.
Then put the names into a 2D array that has 5 rows and 4 columns.
Create 2 seating charts by printing the 2D array.
Student 17
Student 18
Student 19
Student 20
Student 13
Student 14
Student 15
Student 16
Student 9
Student 10
Student 11
Student 12
Student 5
Student 6
Student 7
Student 8
Student 1
Student 2
Student 3
Student 4
Student 5
Student 10
Student 15
Student 20
Student 4
Student 9
Student 14
Student 19
Student 3
Student 8
Student 13
Student 18
Student 2
Student 7
Student 12
Student 17
Student 1
Student 6
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Student 16
A positive integer greater than 1 is said to be prime if it has no divisors other than 1 and itself. Write a program that asks the user to input an integer greater than 1, then display all of the prime numbers that less than or equal to the number entered. The program should work as follows:
• Once the user has entered a number, the program should display an array with all of the integers from 2 up through the value entered.
• The program should then use a loop to step through the array. The loop should pass each element to a method that displays the element whether it is prime number.
Your result should look like, for example:
Enter an integer greater than 1: 9
2, 3, 4, 5, 6, 7, 8, 9
2 is prime
3 is prime
4 is not prime
5 is prime
6 is not prime
7 is prime
8 is not prime
9 is not prime
Using java programming
Chapter 7 Solutions
Starting Out with Java: Early Objects (6th Edition)
Ch. 7.1 - Write statements that create the following arrays:...Ch. 7.1 - Whats wrong with the following array declarations?...Ch. 7.1 - Prob. 7.3CPCh. 7.1 - Prob. 7.4CPCh. 7.1 - Prob. 7.5CPCh. 7.1 - Prob. 7.6CPCh. 7.1 - Prob. 7.7CPCh. 7.1 - Prob. 7.8CPCh. 7.2 - Prob. 7.9CPCh. 7.2 - Prob. 7.10CP
Ch. 7.2 - A program has the following declaration: double[]...Ch. 7.2 - Look at the following statements: final in...Ch. 7.3 - Look at the following method header: public static...Ch. 7.3 - Write a method named zero, which accepts an int...Ch. 7.6 - Prob. 7.15CPCh. 7.7 - Recall that we discussed a Rectangle class in...Ch. 7.9 - What value in an array does the selection sort...Ch. 7.9 - How many times will the selection sort swap the...Ch. 7.9 - Prob. 7.19CPCh. 7.9 - Prob. 7.20CPCh. 7.9 - If a sequential search is performed on an array,...Ch. 7.11 - Prob. 7.22CPCh. 7.13 - What import statement must you include in your...Ch. 7.13 - Write a statement that creates an ArrayList object...Ch. 7.13 - Write a statement that creates an ArrayList object...Ch. 7.13 - Prob. 7.26CPCh. 7.13 - Prob. 7.27CPCh. 7.13 - Prob. 7.28CPCh. 7.13 - Prob. 7.29CPCh. 7.13 - Prob. 7.30CPCh. 7.13 - Prob. 7.31CPCh. 7 - Prob. 1MCCh. 7 - Prob. 2MCCh. 7 - Prob. 3MCCh. 7 - Prob. 4MCCh. 7 - Array bounds checking happens. a. when the program...Ch. 7 - Prob. 6MCCh. 7 - Prob. 7MCCh. 7 - Prob. 8MCCh. 7 - Prob. 9MCCh. 7 - Prob. 10MCCh. 7 - To store an item in an ArrayList object, use this...Ch. 7 - Prob. 12MCCh. 7 - To delete an item from an ArrayList object, you...Ch. 7 - Prob. 14TFCh. 7 - Prob. 15TFCh. 7 - Prob. 16TFCh. 7 - Prob. 17TFCh. 7 - Prob. 18TFCh. 7 - Prob. 19TFCh. 7 - True or False: The Java compiler does not display...Ch. 7 - Prob. 21TFCh. 7 - True or False: The first size declarator in the...Ch. 7 - Prob. 23TFCh. 7 - Prob. 24TFCh. 7 - int[] collection = new int[-20];Ch. 7 - Prob. 2FTECh. 7 - Prob. 3FTECh. 7 - Prob. 4FTECh. 7 - Prob. 5FTECh. 7 - Prob. 1AWCh. 7 - Prob. 2AWCh. 7 - Prob. 3AWCh. 7 - In a program you need to store the populations of...Ch. 7 - In a program you need to store the identification...Ch. 7 - Prob. 6AWCh. 7 - Prob. 7AWCh. 7 - Prob. 8AWCh. 7 - Prob. 9AWCh. 7 - Prob. 10AWCh. 7 - Prob. 11AWCh. 7 - Prob. 1SACh. 7 - Prob. 2SACh. 7 - Prob. 3SACh. 7 - Prob. 4SACh. 7 - Prob. 5SACh. 7 - The following statement creates an InventoryItem...Ch. 7 - Prob. 7SACh. 7 - Prob. 8SACh. 7 - Rainfall Class Write a RainFall class that stores...Ch. 7 - Payroll Class Write a Payroll class that uses the...Ch. 7 - Charge Account Validation Create a class with a...Ch. 7 - Prob. 4PCCh. 7 - Charge Account Modification Modify the charge...Ch. 7 - Drivers License Exam The local Drivers License...Ch. 7 - Magic 8 Ball Write a program that simulates a...Ch. 7 - Grade Book A teacher has five students who have...Ch. 7 - Grade Book Modification Modify the grade book...Ch. 7 - Average Steps Taken A Personal Fitness Tracker is...Ch. 7 - ArrayOperations Class Write a class name...Ch. 7 - 12.1994 Gas Prices In the student sample programs...Ch. 7 - Sorted List of 1994 Gas Prices Note: This...Ch. 7 - Name Search If you have downloaded this books...Ch. 7 - Population Data If you have downloaded this books...Ch. 7 - World Series Champions If you have downloaded this...Ch. 7 - Search Benchmarks Modify the sequentialSearch and...Ch. 7 - 2D Array Operations Write a program that creates a...Ch. 7 - Prob. 19PCCh. 7 - Trivia Game In this programming challenge, you...Ch. 7 - Prob. 21PC
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